{"id":756,"date":"2019-11-10T12:56:50","date_gmt":"2019-11-10T12:56:50","guid":{"rendered":"https:\/\/www.cmelaciplus.cz\/?page_id=756"},"modified":"2026-05-14T12:35:10","modified_gmt":"2026-05-14T10:35:10","slug":"im-a-flap","status":"publish","type":"page","link":"https:\/\/www.cmelaciplus.cz\/en\/umeni-klapky\/","title":{"rendered":"The art of the clap"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"756\" class=\"elementor elementor-756\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-55932395 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"55932395\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-2ac89cbf\" data-id=\"2ac89cbf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-36e5fb7a elementor-widget elementor-widget-heading\" data-id=\"36e5fb7a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">The art of the flap: how to teach bumblebees to go through a flap<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-767f3ad elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"767f3ad\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-ff30e55\" data-id=\"ff30e55\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-59b5f515 elementor-widget elementor-widget-spacer\" data-id=\"59b5f515\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-194798ea elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"194798ea\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-1de7a14e\" data-id=\"1de7a14e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-0ff643f elementor-nav-menu--dropdown-mobile elementor-nav-menu__align-start elementor-nav-menu__text-align-aside elementor-nav-menu--toggle elementor-nav-menu--burger elementor-widget elementor-widget-global elementor-global-33299 elementor-widget-nav-menu\" data-id=\"0ff643f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;layout&quot;:&quot;vertical&quot;,&quot;submenu_icon&quot;:{&quot;value&quot;:&quot;fas fa-chevron-down&quot;,&quot;library&quot;:&quot;fa-solid&quot;},&quot;toggle&quot;:&quot;burger&quot;}\" data-widget_type=\"nav-menu.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t<nav aria-label=\"Menu\" class=\"elementor-nav-menu--main elementor-nav-menu__container elementor-nav-menu--layout-vertical e--pointer-background e--animation-fade\">\n\t\t\t\t<ul id=\"menu-1-0ff643f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-799\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/rad-bych-zacal-chovat-cmelaky\/\" class=\"elementor-item\">I would like to start keeping bumblebees<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-800\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nezbytna-prvni-uvaha\/\" class=\"elementor-item\">Essential first consideration<\/a><\/li>\n<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3766\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-ziskat-cmelaky\/\" class=\"elementor-item\">How to get bumblebees<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-802\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-vybrat-spravny-ul\/\" class=\"elementor-item\">How to choose the right beehive<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38041\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nezbytna-vybava-ulu\/\" class=\"elementor-item\">Essential hive equipment<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-805\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/chodba-v-ulu\/\" class=\"elementor-sub-item\">Corridor in the hive<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-806\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vetrani\/\" class=\"elementor-sub-item\">Hive ventilation<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-808\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/klapka\/\" class=\"elementor-sub-item\">Slipper<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-5373\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/klapka-zvedani-zaklopky\/\" class=\"elementor-sub-item\">Latch lifting solution<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-2892\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/strecha-cmelaciho-ulu\/\" class=\"elementor-sub-item\">The roof of the beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-25831\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/tepelna-izolace-a-vytapeni-ulku-pro-cmelaky\/\" class=\"elementor-sub-item\">Thermal insulation and heating of the hive<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3606\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-vytah-k-bezpecne-kontrole-hnizd\/\" class=\"elementor-sub-item\">Bumblebee lift for safe nest interventions<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-809\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vystelka\/\" class=\"elementor-sub-item\">Lining<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3607\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pozorovaci-okenko-ulu\/\" class=\"elementor-sub-item\">Observation window of the hive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38137\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">======================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-4161\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-chovatele-cmelaku\/\" class=\"elementor-item\">Breeder's aids<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37248\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-pro-odchyt-a-usazeni-kralovny\/\" class=\"elementor-sub-item\">Aids for catching and introducing a queen<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37247\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-pro-bezpecnou-kontrolu-v-ulku\/\" class=\"elementor-sub-item\">Equipment for safe hive inspection<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38138\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">=================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37249\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/krmeni-krmitka-prikrmovani-cmelaku\/\" class=\"elementor-item\">Feeding and supplementing bumblebees<\/a><\/li>\n<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-893\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kudy-cesta-nevede\/\" class=\"elementor-item\">DANGEROUS things for bumblebees<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-8405\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nevhodne-komercne-dostupne-ulky\/\" class=\"elementor-sub-item\">Unsuitable commercially available cheeses<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-30192\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nebezpecne-pripravky-proti-parazitum\/\" class=\"elementor-sub-item\">Dangerous antiparasitic preparations<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5884\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prodej-nepuvodnich-druhu-cmelaku\/\" class=\"elementor-sub-item\">Sale of non-native agricultural hybrids<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5843\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nevhodna-odchytova-sada\/\" class=\"elementor-sub-item\">Unsuitable trapping kit<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-30193\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zazracny-pripravek-na-ochranu-cmelaku\/\" class=\"elementor-sub-item\">Biopesticide Bacillus thuringiensis: risk or benefit<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38139\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">============================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38090\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pripravna-faze-chovu-cmelaku-v-ulku\/\" class=\"elementor-item\">Preparation phase of breeding<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33503\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/priprava-ulku-pred-sezonou\/\" class=\"elementor-sub-item\">Pre-season ulcer preparation<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26457\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-umistit-ulky-pro-cmelaky-na-stanoviste\/\" class=\"elementor-sub-item\">When to place hives in their location<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-2854\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/ochrana-cmelaciho-ulu-pred-mravenci\/\" class=\"elementor-sub-item\">Ants and hive protection from them<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26750\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zazracny-pripravek-na-ochranu-cmelaku\/\" class=\"elementor-sub-item\">Miracle protective product?<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-811\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nejcastejsi-chyby\/\" class=\"elementor-sub-item\">Common mistakes<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-813\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vyber-z-vasich-dotazu\/\" class=\"elementor-sub-item\">Selection of your queries<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38134\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">===========================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38109\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-sezona-zacina\/\" class=\"elementor-item\">The bumblebee season begins<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"nmr-administrator nmr-editor nmr-author nmr-logged-in menu-item menu-item-type-post_type menu-item-object-page menu-item-2463\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prvni-krok-nez-zahajite-sezonu\/\" class=\"elementor-sub-item\">First steps before you start the season<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26458\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-umistit-ulky-pro-cmelaky-na-stanoviste\/\" class=\"elementor-sub-item\">When to place hives in their location<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33532\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/umisteni-ulu-na-zahrade\/\" class=\"elementor-sub-item\">Where to correctly place a beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-4692\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/matka-hleda-hnizdiste\/\" class=\"elementor-sub-item\">A mother is looking for a nesting site<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-815\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-usadit-kralovnu-do-ulku\/\" class=\"elementor-sub-item\">How to place a bumblebee into a hive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-36889\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/atraktant-pro-obsazeni-ulku-s-cmelaky\/\" class=\"elementor-sub-item\">Attractant for bumblebee nest occupancy<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-797\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/mam-nebo-nemam-usazeno\/\" class=\"elementor-sub-item\">Do I or do I not have this settled<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5983\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/matka-se-usadila-v-hnizdisti\/\" class=\"elementor-sub-item\">The mother settled in the nesting site<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-796\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/umeni-klapky\/\" class=\"elementor-sub-item\">The art of the clap<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-795\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/extremni-vlivy-jara-mraziky\/\" class=\"elementor-sub-item\">Extreme spring influences: frosts<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6940\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-a-jak-vetrat-ulek\/\" class=\"elementor-sub-item\">When and how to ventilate a bumblebee swarm<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38136\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">===============================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33573\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-hnizdo-v-dobe-delnic\/\" class=\"elementor-item\">Solitary phase of the mother and first workers<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7049\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kontroly-hnizda-v-ulku\/\" class=\"elementor-item\">Caring for a developed nest in a beehive<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38115\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/parazite-a-predatori-ve-cmelacim-ulu\/\" class=\"elementor-item\">Parasites and predators in the hive<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6161\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pacmelaci-a-chov-cmelaku\/\" class=\"elementor-sub-item\">Bumblebees and bumblebee keeping<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6786\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zavijec-cizopasny-a-chov-cmelaku\/\" class=\"elementor-sub-item\">Aphomia sociella and its rearing<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-18210\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/melittobia-acasta-a-chov-cmelaku\/\" class=\"elementor-sub-item\">Melittobia acasta is a species of wasp.<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6709\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/ochrana-cmelaciho-ulu-pred-mravenci\/\" class=\"elementor-sub-item\">Ants and their control<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38140\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">===================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-32968\"><a href=\"#\" class=\"elementor-item elementor-item-anchor\">End of the bumblebee colony<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7428\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prohlidka-ulu-a-hnizda-na-konci-sezony\/\" class=\"elementor-sub-item\">End-of-season hive and nest inspection<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-850\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-vycistit-a-zazimovat-ul\/\" class=\"elementor-sub-item\">How to clean and winterise a beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38141\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\">================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-793\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vyber-z-vasich-dotazu-2\/\" class=\"elementor-item\">Selections from your inquiries<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-894\"><a href=\"http:\/\/www.cmelaciplus.cz\/en\/\" class=\"elementor-item\">Back to introduction<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t<div class=\"elementor-menu-toggle\" role=\"button\" tabindex=\"0\" aria-label=\"Menu Toggle\" aria-expanded=\"false\">\n\t\t\t<i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--open eicon-menu-bar\"><\/i><i aria-hidden=\"true\" role=\"presentation\" class=\"elementor-menu-toggle__icon--close eicon-close\"><\/i>\t\t<\/div>\n\t\t\t\t\t<nav class=\"elementor-nav-menu--dropdown elementor-nav-menu__container\" aria-hidden=\"true\">\n\t\t\t\t<ul id=\"menu-2-0ff643f\" class=\"elementor-nav-menu sm-vertical\"><li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-799\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/rad-bych-zacal-chovat-cmelaky\/\" class=\"elementor-item\" tabindex=\"-1\">I would like to start keeping bumblebees<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-800\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nezbytna-prvni-uvaha\/\" class=\"elementor-item\" tabindex=\"-1\">Essential first consideration<\/a><\/li>\n<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3766\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-ziskat-cmelaky\/\" class=\"elementor-item\" tabindex=\"-1\">How to get bumblebees<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-802\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-vybrat-spravny-ul\/\" class=\"elementor-item\" tabindex=\"-1\">How to choose the right beehive<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38041\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nezbytna-vybava-ulu\/\" class=\"elementor-item\" tabindex=\"-1\">Essential hive equipment<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-805\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/chodba-v-ulu\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Corridor in the hive<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-806\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vetrani\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Hive ventilation<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-808\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/klapka\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Slipper<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-5373\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/klapka-zvedani-zaklopky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Latch lifting solution<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-2892\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/strecha-cmelaciho-ulu\/\" class=\"elementor-sub-item\" tabindex=\"-1\">The roof of the beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-25831\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/tepelna-izolace-a-vytapeni-ulku-pro-cmelaky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Thermal insulation and heating of the hive<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3606\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-vytah-k-bezpecne-kontrole-hnizd\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Bumblebee lift for safe nest interventions<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-809\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vystelka\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Lining<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-3607\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pozorovaci-okenko-ulu\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Observation window of the hive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38137\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">======================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-4161\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-chovatele-cmelaku\/\" class=\"elementor-item\" tabindex=\"-1\">Breeder's aids<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37248\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-pro-odchyt-a-usazeni-kralovny\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Aids for catching and introducing a queen<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37247\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pomucky-pro-bezpecnou-kontrolu-v-ulku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Equipment for safe hive inspection<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38138\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">=================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-37249\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/krmeni-krmitka-prikrmovani-cmelaku\/\" class=\"elementor-item\" tabindex=\"-1\">Feeding and supplementing bumblebees<\/a><\/li>\n<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-893\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kudy-cesta-nevede\/\" class=\"elementor-item\" tabindex=\"-1\">DANGEROUS things for bumblebees<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-8405\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nevhodne-komercne-dostupne-ulky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Unsuitable commercially available cheeses<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-30192\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nebezpecne-pripravky-proti-parazitum\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Dangerous antiparasitic preparations<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5884\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prodej-nepuvodnich-druhu-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Sale of non-native agricultural hybrids<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5843\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nevhodna-odchytova-sada\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Unsuitable trapping kit<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-30193\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zazracny-pripravek-na-ochranu-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Biopesticide Bacillus thuringiensis: risk or benefit<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38139\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">============================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38090\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pripravna-faze-chovu-cmelaku-v-ulku\/\" class=\"elementor-item\" tabindex=\"-1\">Preparation phase of breeding<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33503\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/priprava-ulku-pred-sezonou\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Pre-season ulcer preparation<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26457\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-umistit-ulky-pro-cmelaky-na-stanoviste\/\" class=\"elementor-sub-item\" tabindex=\"-1\">When to place hives in their location<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-2854\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/ochrana-cmelaciho-ulu-pred-mravenci\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Ants and hive protection from them<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26750\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zazracny-pripravek-na-ochranu-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Miracle protective product?<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-811\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/nejcastejsi-chyby\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Common mistakes<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-813\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vyber-z-vasich-dotazu\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Selection of your queries<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38134\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">===========================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38109\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-sezona-zacina\/\" class=\"elementor-item\" tabindex=\"-1\">The bumblebee season begins<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"nmr-administrator nmr-editor nmr-author nmr-logged-in menu-item menu-item-type-post_type menu-item-object-page menu-item-2463\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prvni-krok-nez-zahajite-sezonu\/\" class=\"elementor-sub-item\" tabindex=\"-1\">First steps before you start the season<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-26458\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-umistit-ulky-pro-cmelaky-na-stanoviste\/\" class=\"elementor-sub-item\" tabindex=\"-1\">When to place hives in their location<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33532\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/umisteni-ulu-na-zahrade\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Where to correctly place a beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-4692\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/matka-hleda-hnizdiste\/\" class=\"elementor-sub-item\" tabindex=\"-1\">A mother is looking for a nesting site<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-815\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-usadit-kralovnu-do-ulku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">How to place a bumblebee into a hive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-36889\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/atraktant-pro-obsazeni-ulku-s-cmelaky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Attractant for bumblebee nest occupancy<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-797\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/mam-nebo-nemam-usazeno\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Do I or do I not have this settled<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-5983\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/matka-se-usadila-v-hnizdisti\/\" class=\"elementor-sub-item\" tabindex=\"-1\">The mother settled in the nesting site<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-796\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/umeni-klapky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">The art of the clap<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-795\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/extremni-vlivy-jara-mraziky\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Extreme spring influences: frosts<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6940\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kdy-a-jak-vetrat-ulek\/\" class=\"elementor-sub-item\" tabindex=\"-1\">When and how to ventilate a bumblebee swarm<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38136\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">===============================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-33573\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/cmelaci-hnizdo-v-dobe-delnic\/\" class=\"elementor-item\" tabindex=\"-1\">Solitary phase of the mother and first workers<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7049\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/kontroly-hnizda-v-ulku\/\" class=\"elementor-item\" tabindex=\"-1\">Caring for a developed nest in a beehive<\/a><\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-38115\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/parazite-a-predatori-ve-cmelacim-ulu\/\" class=\"elementor-item\" tabindex=\"-1\">Parasites and predators in the hive<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6161\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/pacmelaci-a-chov-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Bumblebees and bumblebee keeping<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6786\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/zavijec-cizopasny-a-chov-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Aphomia sociella and its rearing<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-18210\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/melittobia-acasta-a-chov-cmelaku\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Melittobia acasta is a species of wasp.<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-6709\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/ochrana-cmelaciho-ulu-pred-mravenci\/\" class=\"elementor-sub-item\" tabindex=\"-1\">Ants and their control<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38140\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">===================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-has-children menu-item-32968\"><a href=\"#\" class=\"elementor-item elementor-item-anchor\" tabindex=\"-1\">End of the bumblebee colony<\/a>\n<ul class=\"sub-menu elementor-nav-menu--dropdown\">\n\t<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-7428\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/prohlidka-ulu-a-hnizda-na-konci-sezony\/\" class=\"elementor-sub-item\" tabindex=\"-1\">End-of-season hive and nest inspection<\/a><\/li>\n\t<li class=\"nmr-administrator nmr-editor nmr-author menu-item menu-item-type-post_type menu-item-object-page menu-item-850\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/jak-vycistit-a-zazimovat-ul\/\" class=\"elementor-sub-item\" tabindex=\"-1\">How to clean and winterise a beehive<\/a><\/li>\n\t<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-38141\"><a href=\"#\" class=\"elementor-sub-item elementor-item-anchor\" tabindex=\"-1\">================================<\/a><\/li>\n<\/ul>\n<\/li>\n<li class=\"menu-item menu-item-type-post_type menu-item-object-page menu-item-793\"><a href=\"https:\/\/www.cmelaciplus.cz\/en\/vyber-z-vasich-dotazu-2\/\" class=\"elementor-item\" tabindex=\"-1\">Selections from your inquiries<\/a><\/li>\n<li class=\"menu-item menu-item-type-custom menu-item-object-custom menu-item-894\"><a href=\"http:\/\/www.cmelaciplus.cz\/en\/\" class=\"elementor-item\" tabindex=\"-1\">Back to introduction<\/a><\/li>\n<\/ul>\t\t\t<\/nav>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-top-column elementor-element elementor-element-2a0d0958\" data-id=\"2a0d0958\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-225715f elementor-widget elementor-widget-text-editor\" data-id=\"225715f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><em><strong>What will you learn here?<\/strong><\/em><\/h4><ul><li><em>We will explain how to train a queen bee to go through a protective flap.<\/em><\/li><li><em>This explains how worker bees manage the flap and whether they need to learn about the flap.<\/em><\/li><li><em>We'll try to convince you that bumblebees can manage the flap and that it's not that difficult<\/em><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aabb5b0 elementor-widget elementor-widget-text-editor\" data-id=\"aabb5b0\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em>Last updated: 12\/05\/2026<\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-91879a2 elementor-widget elementor-widget-text-editor\" data-id=\"91879a2\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"1\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Contents<\/strong><\/h4><p><strong><a href=\"#2\">What is a protective flap for and how does it work<\/a><\/strong><br \/><strong><a href=\"#3\">When to start using and how long to use a protective flap<\/a><\/strong><br \/><strong><a href=\"#4\">How to teach a queen bumblebee to use a protective flap<\/a><\/strong><br \/><strong><a href=\"#5\">Worker bees born in the hive can manage the flap (a flight manoeuvre) without training<\/a><\/strong><br \/><strong><a href=\"#6\">Protective flap and nest from Troubsko (Czech bumblebee)<\/a><\/strong><br \/><strong><a href=\"#7\">Protective flap and male bumblebees (drones)<\/a><\/strong><br \/><strong><a href=\"#8\">Protective flap and bumblebees<\/a><\/strong><br \/><strong><a href=\"#9\">What to do when bumblebees can't manage the flap<\/a><\/strong><br \/><strong><a href=\"#10\">Protective flap maintenance<\/a><\/strong><br \/><strong><a href=\"#11\">Final recommendations<\/a><\/strong><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3d90609 elementor-widget elementor-widget-video\" data-id=\"3d90609\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/Y83hXnGOFv0&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b3a8062 elementor-widget elementor-widget-text-editor\" data-id=\"b3a8062\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"2\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>What is a protective flap for and how does it work<\/strong><\/h4><p>the protective flap and its construction we <b>described <\/b><a href=\"https:\/\/www.cmelaciplus.cz\/en\/clapper\/\" target=\"_blank\" rel=\"noopener\">HERE\u00a0<\/a><\/p><p>Let's just reiterate, however, that the protective flap is actually <b>a light trapdoor<\/b>, which cover the entrance to the nest (the flight hole). The flap prevents bumblebee parasites from entering the nest and harming the bumblebees.<\/p><p>Klapka (<b>Triggered lockdown<\/b>In the same way, it prevents a mother who happens to find it from entering the nest.\u00a0 <br \/>This happens primarily where the trap is placed on the ground. There, another mother can easily discover it when searching, as the dark area of the entrance hole catches her eye \u2013 she mistakes it for the entrance to a small rodent's nest. <br \/>Proto <strong>We recommend placing the wells above ground, at a height of at least 30cm.<\/strong>. This reduces the risk of accidental discovery. If you prefer <strong>Self-catering<\/strong>, it is good after the hive has settled this <strong>raise to such a height<\/strong>.<br \/>We describe the location of the ulcer <a href=\"https:\/\/www.cmelaciplus.cz\/en\/location-of-trees-in-the-garden\/\" target=\"_blank\" rel=\"noopener\">HERE<\/a>.<\/p><p>Bumblebees quickly get used to having to lift the flap and slip underneath. Furthermore, they need to get into their home or out for food. After a while, they safely navigate the pheromone-scented path to and from the hive.<\/p><p><strong>The parasite doesn't have the strength to lift the flap correctly.<\/strong> (e.g., the dreaded bee moth or parasitic flies). Or, they might have the strength for it (bumblebees, hornets), but then lack the \u201enerve\u201c to learn and wait. They simply didn't anticipate such an obstacle. The same applies to a queen bumblebee that happens to stumble upon a startled bee with its trapdoor opened. <strong>It doesn't work with the flap.<\/strong>, so \u201eit won't work\u201c and fly off empty-handed to look elsewhere.<\/p><p>You'll be surprised, but in times of food scarcity, workers of some bumblebee species will even go on a raid of a neighbouring natural nest. The protective flap can then stop even them.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2c9dd86 elementor-widget elementor-widget-text-editor\" data-id=\"2c9dd86\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_3444\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-3444\" class=\"wp-image-3444\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Ochranna_klapka_vstupujici_cmelak.jpg\" alt=\"Bumblebee PLUS - Protective Flap - entering Stone Bumblebee (Bombus lapidarius)\" width=\"350\" height=\"233\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Ochranna_klapka_vstupujici_cmelak.jpg 630w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Ochranna_klapka_vstupujici_cmelak-300x200.jpg 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-3444\" class=\"wp-caption-text\">Guard flap \u2013 entering red-tailed bumblebee (Bombus lapidarius)<br \/>Photo http:\/\/www.wildbienen.de<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-21f7873 elementor-widget elementor-widget-video\" data-id=\"21f7873\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/ujdJGx6QeK4&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-29353dd elementor-widget elementor-widget-text-editor\" data-id=\"29353dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><br><\/p><p>In the next video, you can see the real speed at which bumblebees pass through the protective flap \u2013 after they learn to do so<\/p>\n<p>Let's then describe how it all actually&nbsp;<span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">It works.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2a0a382 elementor-widget elementor-widget-video\" data-id=\"2a0a382\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/gh2V8B57a8Q&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b658c9a elementor-widget elementor-widget-text-editor\" data-id=\"b658c9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In this video, you can see a classic bumblebee procession through a protective flap, heading into the hive.<br \/>The bumblebee pokes its head under the plastic flap, lifts it with its head and back, and slips underneath. <br \/>A bumblebee is accustomed to touch; if it wasn't, it would give up after a few attempts.<\/p><p>The speed is reduced so that essential details can be observed. The flap is equipped with polycarbonate arms for filming. One arm has been removed. The aim is to get a detailed view and understand how these bumblebees actually do it.<\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">Here a large worker of the bumbling bee species Bombus hypnorum is lifting the flap.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3a98ddd elementor-widget elementor-widget-video\" data-id=\"3a98ddd\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/8RWG-vNAk6g&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f111ec3 elementor-widget elementor-widget-text-editor\" data-id=\"f111ec3\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the video, you can see a classic bumblebee swarm through a protective flap \u2013 heading out of the hive.<br \/>The bumblebee is pushing its head against the valve where it sees light filtering through.\u00a0<br \/><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">If they push hard enough, the flap will lift, revealing a light and a gap through which the bumblebee will wriggle.<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">The bumblebee is used to the feel of the trigger; if it weren't, it would give up after a few attempts.<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">Here a large worker of the bumbling bee species Bombus hypnorum is lifting the flap.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dd0bf31 elementor-widget elementor-widget-video\" data-id=\"dd0bf31\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/ngJ7X72PEJE&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56d0053 elementor-widget elementor-widget-text-editor\" data-id=\"56d0053\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>Sometimes bumblebees learn to go under the flap backwards.\u00a0<br \/><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">By all accounts, they do it constantly. <br \/>It is relatively common when leaving the ulcer, but sometimes they also do it when entering the ulcer = climbing on the flap, with their backs against the solid part of the flap<\/span><\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">\u00a0<\/span><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">Here a large worker of the bumbling bee species Bombus hypnorum is lifting the flap.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-e01c50b elementor-widget elementor-widget-video\" data-id=\"e01c50b\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/FC7EfkorRuY&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8959637 elementor-widget elementor-widget-text-editor\" data-id=\"8959637\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>S <b>When it comes to worker bumblebees, there's no issue.<\/b>, as we will describe further<b>.<\/b><\/p><p><strong>It is important to teach the queen mother how to work with the protective flap.<\/strong>. To get used to it, you need to gradually open the protective flap's latch.<\/p>\n<p>This can be used for <b>some of the possible<\/b>the solution we described <a href=\"https:\/\/www.cmelaciplus.cz\/en\/flap-release-lever\/\" target=\"_blank\" rel=\"noopener\">HERE&nbsp;<\/a><\/p>\n<p>Each of these solutions has its advantages.<\/p>\n<p>If you get a protective flap with <b>Construction screw<\/b>, adjust it so that the screw isn't in the way of the bumblebees passing under the flap. Much better is <b>use two screws \u2013 on the sides<\/b> discharge opening.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-fae9252 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"fae9252\" data-element_type=\"section\" data-e-type=\"section\" id=\"#\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-7d7190e\" data-id=\"7d7190e\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-4643f7d elementor-widget elementor-widget-text-editor\" data-id=\"4643f7d\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5418\" style=\"width: 260px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-5418\" class=\"wp-image-5418\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky_kolicek_3.jpg\" alt=\"Bumblebees PLUS - Solutions for flap closure peg\" width=\"250\" height=\"333\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky_kolicek_3.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky_kolicek_3-225x300.jpg 225w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky_kolicek_3-768x1024.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky_kolicek_3-810x1080.jpg 810w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><p id=\"caption-attachment-5418\" class=\"wp-caption-text\">Lid for flap closure<br \/>Photo O. Hercog<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-d27596a\" data-id=\"d27596a\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-65db0fe elementor-widget elementor-widget-text-editor\" data-id=\"65db0fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5413\" style=\"width: 260px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-5413\" class=\"wp-image-5413\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky-_vruty_1.jpg\" alt=\"Bumblebees PLUS - Screw solution for closing the flap\" width=\"250\" height=\"455\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky-_vruty_1.jpg 528w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/02\/Cmelaci_PLUS_reseni_pro_zavirani_klapky-_vruty_1-165x300.jpg 165w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><p id=\"caption-attachment-5413\" class=\"wp-caption-text\">Screw solutions for closing a flap<br \/>retaining screws in the butterfly valve body<br \/>Photo O. Hercog (2019)<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-1ed2309 elementor-widget elementor-widget-text-editor\" data-id=\"1ed2309\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"3\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>When to start using and how long to use a protective flap<\/strong><\/h4><p>Most <b>Beginners <\/b>princip klapky ch\u00e1pe, ale <b>they are afraid to use it<\/b>. But it is<strong> it is necessary to start on time and persevere<\/strong> A view of a bumblebee trying to lift a latch and failing.<\/p><p>But the latch is needed <b>to be used soon after the queen bee is introduced <\/b>or immediately after you have placed the established nest in the hive (bumblebee nest). If, after they have settled, the <b>worsened climatic conditions<\/b> (frost, snow, prolonged precipitation), \u201emother training\u201c can be postponed.<\/p><p><span style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif; font-weight: var( --e-global-typography-text-font-weight );\">Once you start using the flap, you must continue to use it for the rest of the nest's life.<\/span><\/p><p>Please be aware that<strong> protective flap protects<\/strong>:<\/p><ul><li><strong>Nest, when the queen mother settles in<\/strong> or you occupy it yourself \u2013 this will deter other mothers who might be interested in the nest, from attacking, injuring, or even killing the mother occupying it in combat<\/li><li><strong>Nest, when the first generation of workers appears in the nest<\/strong> \u2013 bumblebee queens will be interested in the nest, which seek nests with the first or second generation of workers, i.e. nests that they can easily overcome, kill the queen, and enslave the workers<\/li><li><strong>Developed nests<\/strong> \u2013 parasites are interested in it, but also other intruders that are interested in its inhabitants (ropy midge, parasitic flies, parasitic wasps Melittiobia acasta, \u2026) but also in the honey stores (other bumblebees, wasps, bees\u2026)<\/li><\/ul><div><b>Just tilting the flap early enough into a position where the dark entrance hole is not visible, but the flap does not restrict the queen. The dark hole will not attract other queens looking for nesting sites.\u00a0<\/b><\/div><div><b>\u00a0<\/b><\/div><p style=\"text-align: center;\"><span style=\"color: #339966;\"><b>The basic rule is: a protective flap only protects if the latch is engaged. So, start using the flap as soon as possible and then for the rest of the nest's life.<\/b>.<\/span><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-74c6ce2 elementor-widget elementor-widget-video\" data-id=\"74c6ce2\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/Klf6f5E0sPg&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fa90c56 elementor-widget elementor-widget-text-editor\" data-id=\"fa90c56\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"4\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>How to teach a queen bumblebee to use a protective flap<\/strong><\/h4><p>The doors need to be closed. <strong>Close sequentially<\/strong> so that it <strong>Mother is used to it<\/strong>. It can take 2-7 days for the damper (moving part) to fully close. <strong>Latches<\/strong>).<\/p><p>It depends on various conditions, mainly on the mother's activity and size. Larger bumblebee species manage it faster, for example, the buff-tailed bumblebee (Bombus terrestris) and the red-tailed bumblebee (Bombus lapidarius) \u2013 the trap is less of a burden for them. Smaller ones sometimes take longer, for example, the field bumblebee (Bombus pascuorum) or the early bumblebee (Bombus pratorum).<\/p><p>With training\/tuition <strong>Start<\/strong> immediately after<strong> The queen reliably returns to the hive and spends the night in it<\/strong>. She is already building her nest, laying her first eggs in it, and her urge to return home is strong.<\/p><p>In practice, it pays to start about 3-5 days after settling in. However, it shouldn't be longer than 5-7 days after settling in.<\/p><p><strong>Follow the mother's movements\/returns by observation<\/strong>, or even better by means of <strong>brands<\/strong>, seen <a href=\"https:\/\/www.cmelaciplus.cz\/en\/i-dont-have-it-installed\/\" target=\"_blank\" rel=\"noopener\">HERE\u00a0<\/a><\/p><p>Don't forget to adjust the flap before fitting the nut. It's about<b> anti-slip tape on the flap body<\/b>, <b>Black tape<\/b> from the inside,<b> White tape <\/b>from the outside of the flap. It is also advisable to lightly roughen the rising part of the flap with fine scratches. <br \/><b>About damper adjustments <\/b>if you read <a href=\"https:\/\/www.cmelaciplus.cz\/en\/clapper\/\" target=\"_blank\" rel=\"noopener\">HERE\u00a0<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-affd635 elementor-widget elementor-widget-text-editor\" data-id=\"affd635\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5><strong>Procedure<\/strong><\/h5><ol><li>Starting in position <strong>Open<\/strong> The cleat is up, the queen has settled in your hive.<\/li><li><strong>Lower the flap to the horizontal position.<\/strong> <br \/>Then leave her for about 1 day. The mother will get used to landing on the entrance board and not on the flight opening, as she perhaps did until now.<\/li><li><strong>Open the flap to a height of 10-15 mm<\/strong> (space between the flap and the inlet opening). <br \/>Adjust the size by estimating it based on the queen bee's size \u2013 in this position, the latch must allow the queen to pass comfortably underneath without her back or wings touching it.<br \/>Leave the alighting board like this for about 1 day. The queen will get used to having to go under the alighting board (no contact yet).<\/li><li><strong>Lower the flap to a height of approximately 5-10 mm.<\/strong> <br \/>Adjust the size by estimate according to the size of the queen bee \u2013 in this position, the queen already touches the latches with her back and wings as she passes underneath <br \/>This phase should last approximately 1-2 days. During this time, the mother must get used to her back rubbing against the flap, but she does not have to overcome significant resistance.<\/li><li>As soon as you <strong>A mother gets used to contact with the catch.<\/strong>, the back will teach it to lift the flap and slip under it into the entry hole.,<strong> release in stages<\/strong> Lower the flap to a height of approx. 1 \u2013 2 mm.<br \/>This phase again lasts approximately 1-2 days. The mother gets used to having to lift the flap, and she gets better with each attempt.<\/li><li>The most challenging thing for a mother is to be completely <strong>the final phase, when there are only 1-2 mm left until completely closed<\/strong> and fully closing the valve. <br \/>The mother must get used to sticking her head under the flap, lifting the cover, and slipping underneath.<br \/><strong><em>Warning:<\/em><\/strong><br \/><em>This step should be taken by the breeder <strong>to do then, when he has time to watch<\/strong>, how the mother handles this phase\u00a0<\/em><br \/><em>*<strong>\u00a0 We highly recommend this phase of control<\/strong>and possibly adjust the flap height as needed so that the mother can manage the passage<\/em>\u00a0<br \/><em>Expect it to take your mother a little while \u2013 <strong>Bear with it and observe her<\/strong><\/em><\/li><li>Leave <strong>Deploy the flap<\/strong> and watch how the mother manages the passages.<br \/>Is it suitable <strong>close the flap down completely for the first time<\/strong> <strong>When the mother-queen is in the hive<\/strong>, so it doesn't raise its closed lid for the first time when leaving the hive, but rather when returning.<br \/>It is enough to observe a few passes of the flap as proof that everything is in order. The mother is strong and then she will manage it smoothly.<\/li><\/ol><p>Yes, it is difficult to determine how quickly to open the flap and by how much. It depends on the mother, and the conditions but also on the time you dedicate to it. <strong>Especially in the final phase, your presence and ability to intervene are necessary<\/strong>.<br \/>The best is when you can your \u201eown\u201c mother <strong>observe<\/strong> and according to that<strong> Adjust flap start-up speed<\/strong>. If you find that the mother flap repeatedly does not pass,<strong> Go back a step and try again<\/strong>.<br \/>Each pass of the flap (shutter) <strong>The mother is getting used to it and managing it better.<\/strong>. As time goes on, her desire to go through the flap increases, as she is driven by her nesting instinct and concern for her offspring.<\/p><p><b>Launch phase<\/b> are indicated in the following images:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-98b0bb2 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"98b0bb2\" data-element_type=\"section\" data-e-type=\"section\" id=\"#\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-a7544d8\" data-id=\"a7544d8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-915d29e elementor-widget elementor-widget-text-editor\" data-id=\"915d29e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5582\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5582\" class=\"wp-image-5582\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1.jpg\" alt=\"Bumblebees PLUS - Protective flap for triggering the shut-off valve using a laundry clip\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_1-1-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5582\" class=\"wp-caption-text\">Protective flap for actuating the flap with a clothes peg<br \/>Status: Open <br \/>Photo O. Hercog (2019)<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-17304a5\" data-id=\"17304a5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bd9f245 elementor-widget elementor-widget-text-editor\" data-id=\"bd9f245\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5583\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5583\" class=\"wp-image-5583\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2.jpg\" alt=\"Bumblebees PLUS - Protective flap for triggering the shut-off valve using a laundry clip\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_2-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5583\" class=\"wp-caption-text\">Protective flap for actuating the flap with a clothes peg<br \/>Closing the latch<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-5519b8a elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"5519b8a\" data-element_type=\"section\" data-e-type=\"section\" id=\"#\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-b1875f5\" data-id=\"b1875f5\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-82e4dc3 elementor-widget elementor-widget-text-editor\" data-id=\"82e4dc3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5584\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5584\" class=\"wp-image-5584\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3.jpg\" alt=\"Bumblebees PLUS - Protective flap for triggering the shut-off valve using a laundry clip\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_3-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5584\" class=\"wp-caption-text\">Protective flap for actuating the flap with a clothes peg<br \/>Closing the latch<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-e4fb000\" data-id=\"e4fb000\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-a4ff3e4 elementor-widget elementor-widget-text-editor\" data-id=\"a4ff3e4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5585\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5585\" class=\"wp-image-5585\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4.jpg\" alt=\"Bumblebees PLUS - Protective flap for triggering the shut-off valve using a laundry clip\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_4-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5585\" class=\"wp-caption-text\">Protective flap for actuating the flap with a clothes peg<br \/>Closing the latch<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-3bb83a2 elementor-widget elementor-widget-text-editor\" data-id=\"3bb83a2\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5586\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5586\" class=\"wp-image-5586\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5.jpg\" alt=\"Bumblebees PLUS - Protective flap for triggering the shut-off valve using a laundry clip\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochranna_klapka_spousteni_zaklopky_kolicek_5-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5586\" class=\"wp-caption-text\">Protective flap for actuating the flap with a clothes peg<br \/>Ventil with a Teflon seal<br \/>Lock closed<br \/>Photo O. Hercog (2019)<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3f875d7 elementor-widget elementor-widget-video\" data-id=\"3f875d7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/iImrziavGRQ&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fbfe882 elementor-widget elementor-widget-text-editor\" data-id=\"fbfe882\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em><strong>Recommendation<\/strong><\/em><\/p><ul><li>The lift of the latch is difficult for beginners to gauge. We therefore recommend that you<strong> Make marks\/lines on the sidewall<\/strong>, which will show them the position the latch is set to (see image)<\/li><li><strong>Don't start training until the mother is settled<\/strong>The law and not sleeping in the den can scare it.<\/li><li>If the ruling <strong>adverse weather conditions<\/strong>, with training <strong>Don't rush<\/strong><\/li><li><strong>Don't start training late<\/strong>, the protective flap also protects the queen from any rivals who might wish to settle in her hive<\/li><li><strong>Take time to observe<\/strong> toho, jak se matka u\u010d\u00ed a podle toho, jak j\u00ed to jde, rychlost v\u00fdcviku upravte<\/li><li>When observing, sit next to the hive so that your position does not prevent the queen from returning. Once she lands on the landing board, you can move closer and observe her efforts.<\/li><li>Wear some drab colours for observation, sit down, and don't disturb her with unnecessary sudden movements.<\/li><li><strong>If you see the mother struggling with attempts, don't help her. Wait for her next behaviour<\/strong>. If it repeatedly flies away (when it hasn't opened the hatch to return from its flight) or repeatedly retreats back into the hive (when it has unsuccessfully attempted to open the hatch while trying to exit for flight), go back one step in the learning process. It will try again in a moment, this time in a situation it has learned. Leave it like this for a while, and then proceed more slowly with further learning.<\/li><li><strong>Don't worry, mum will manage, and you with her \u2013 enjoy these unforgettable moments<\/strong><\/li><\/ul><div><b>\u00a0<\/b><\/div><div><em><b>Warning<\/b><\/em><\/div><ul><li><em>leave with the mother throughout the training<strong> enclosed ventilation structure<\/strong><\/em><\/li><li><strong><em>Leave the ventilation opening closed at all times and only open it after the first workers appear in the nest; they will start to pass through the flap and the outside temperature rises above 20\u00b0C.<\/em><\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-781710e elementor-widget elementor-widget-text-editor\" data-id=\"781710e\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>When the flap <b>You're releasing the flap too quickly <\/b>(as in this video), it can confuse the mother and she will start looking for another way into the hive. <br>The flap just needs a little <b>raise with the adjusting mechanism<\/b> (peg\/screw\/etc.) and a nut will go through the hole. Once this is achieved, continue with the gradual lowering until it is fully closed.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-492ad6e elementor-widget elementor-widget-video\" data-id=\"492ad6e\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/DpcIxQhfTzs&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-1e69785 elementor-widget elementor-widget-text-editor\" data-id=\"1e69785\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>\u00a0<\/p><p>If you need to, <b>Make a scale on the side flap.<\/b> This gives you an overview of how the butterfly valve flap is lifted.<\/p><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-dc28db6 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"dc28db6\" data-element_type=\"section\" data-e-type=\"section\" id=\"#\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-47785b8\" data-id=\"47785b8\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5cf43cb elementor-widget elementor-widget-text-editor\" data-id=\"5cf43cb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5571\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5571\" class=\"wp-image-5571\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_1.jpg\" alt=\"Bumblebees_PLUS - Markings on the flap sidewall\" width=\"350\" height=\"197\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_1.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_1-300x169.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_1-768x432.jpg 768w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5571\" class=\"wp-caption-text\">Markings on the flap's sidewall<br \/>Preparation \u2013 measuring the distance of the flap from the damper body<br \/><br \/><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-000b5d3\" data-id=\"000b5d3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-5d1da2a elementor-widget elementor-widget-text-editor\" data-id=\"5d1da2a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5572\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5572\" class=\"wp-image-5572\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_2.jpg\" alt=\"Bumblebees_PLUS - Markings on the flap sidewall\" width=\"350\" height=\"197\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_2.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_2-300x169.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_2-768x432.jpg 768w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5572\" class=\"wp-caption-text\">Markings on the flap's sidewall<br \/>Latch position indicators<br \/><br \/><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-620b2c9 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"620b2c9\" data-element_type=\"section\" data-e-type=\"section\" id=\"#\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-3485637\" data-id=\"3485637\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-2d32185 elementor-widget elementor-widget-text-editor\" data-id=\"2d32185\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5573\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5573\" class=\"wp-image-5573\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3.jpg\" alt=\"\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_3-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5573\" class=\"wp-caption-text\">Markings on the flap's sidewall<br \/>Got it after completion<br \/><br \/><\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5e74ea1\" data-id=\"5e74ea1\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-30f2f88 elementor-widget elementor-widget-text-editor\" data-id=\"30f2f88\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5588\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5588\" class=\"wp-image-5588\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4.jpg\" alt=\"Bumblebees_PLUS - Markings on the flap sidewall\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4.jpg 1000w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Znacky-na-bocnici_klapky_4-608x1080.jpg 608w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5588\" class=\"wp-caption-text\">\u00a0 Markings on the flap's sidewall<br \/>commercially produced flap from a Czech manufacturer, which is not fitted with the recommended white tape on the outside <br \/>Photo O. Hercog (2020)<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-e121442 elementor-widget elementor-widget-text-editor\" data-id=\"e121442\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p><em><strong>Interesting fact:<\/strong><\/em><\/p><ul><li><em>If a mother, who was born here last year, returns to the hive, she can remember the protective flap and lift it. This allows you to significantly shorten the training of such a \u201ereturning\u201c mother; it's basically just a refresher from last year \ud83d\ude0a<\/em><\/li><li><em>It often happens that after changing the damper setting, the queen bee will make a short orientation flight. This occurs after she has emerged from the hive or if she didn't lift the damper on the first attempt. It triggers her \u201echange = searching flight\u201c reflex. Don't be surprised by this; it's a fairly common occurrence. <\/em><br \/><em>You can observe the same phenomenon if you leave the flap closed and open it after a while \u2013 but don't try this during the mother's training.<\/em><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9f1697a elementor-widget elementor-widget-text-editor\" data-id=\"9f1697a\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>In the following video, you can see how the mother is gradually learning to go through the protective flap. Here she has already mastered contact of her back with the moving part of the flap.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5c23c47 elementor-widget elementor-widget-video\" data-id=\"5c23c47\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/-IIfKFxf4Ks&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-53285b6 elementor-widget elementor-widget-text-editor\" data-id=\"53285b6\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"#\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p>The mother has completed the training and is successfully passing the flap.&nbsp;<br><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9d09fe elementor-widget elementor-widget-video\" data-id=\"d9d09fe\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/W7xNyscM1o4&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d4b740d elementor-widget elementor-widget-video\" data-id=\"d4b740d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/UmUN1mRqi_Q&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-55c5ee1 elementor-widget elementor-widget-video\" data-id=\"55c5ee1\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/XWfMLzMjCjc&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5f6d0b9 elementor-widget elementor-widget-text-editor\" data-id=\"5f6d0b9\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"5\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Factory workers and mothers born in the nest manage the flap without training<\/strong><\/h4><p>First-generation workers are often small and will struggle a bit with the latch. <strong>But there are several of them in the nest, so they will help each other \u2013 they will wait for one another.<\/strong><\/p><p>If worker bees start to pile up at the entrance when returning to the hive, you can gently lift the entrance reducer. The worker bees will gradually get used to the flap, and their instinct will guide them into or out of the hive.<\/p><p>If you have time for training, <strong>Lift their flap, let them pass through your presence with the flap for a while. But then lower the flap.<\/strong><\/p><p>Workers from future generations will no longer have to worry about it, as they will learn to lift the flap from their older sisters.<\/p><p><b>Mothers born in a kennel do not need to be taught to go through the flap. <\/b>\u2013 they try it themselves, or they wait until the workers open the flap for them. After a few passes, they lift the flap themselves.<\/p><p><strong>Warning<\/strong><\/p><ul><li>The moment the first workers start to fly from the nest, many beginner keepers tend to open the flap again so they don't \u201esuffer\u201c.<br \/>That's a fundamental error. <strong>Keep the flap closed!<\/strong><\/li><li>The sooner you leave it to the workers, the sooner they will get used to the flap and the better the flap will protect them.<\/li><li><strong>An open hatch due to workers is a risk,<\/strong> that a successfully established nest will perish. <br \/><strong>Every year, we encounter such cases in our advisory service, and it's only when faced with a destroyed nest that the keeper realises what their leniency has caused.<\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-89d5a43 elementor-widget elementor-widget-video\" data-id=\"89d5a43\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/H4Bi4ISv0Fo&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-27f24b9 elementor-widget elementor-widget-video\" data-id=\"27f24b9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/ZWa6L3y1qd4&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-70750c9 elementor-widget elementor-widget-video\" data-id=\"70750c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/Ruu9J1GX9oE&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-441887d elementor-widget elementor-widget-video\" data-id=\"441887d\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/5x6g4yfxdDs&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0d4eeb0 elementor-widget elementor-widget-text-editor\" data-id=\"0d4eeb0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h5>Are the dividers failing to pass through the flap? What to do about it?<\/h5><ul><li>Above all, be patient and give the workers time. Even the small ones will manage \u2013 don't give up, watch them and intervene if necessary (see below)<\/li><li>The small worker ants struggle a bit with the flap, but they manage it even without \u201etraining\u201c \u2013 instinct and scent trails help them find their way to and from the nest.<\/li><li>If they are really struggling with the flap and cannot open it by themselves or together after several minutes, then the breeder needs to intervene \u2013 check that the chick is standing horizontally.<\/li><li>If the workers are still struggling to get through, prop up the back legs of the hive \u2013 it will make the entrance flap easier to open.<\/li><li>Workers have hatched in the nest, but they are not flying out. Check that the ventilation is not open \u2013 the light may be confusing them.<\/li><li>Verify that adhesive tape is attached to the outside of the movable part of the flap \u2013 this is to shield the inlet opening so that light only shines through the hive at the bottom. The worker bees will push with their heads there and open the flap more easily.<\/li><li>Some flaps are unsuitable \u2013 they don't have the correct geometry or have a heavy latch. Consider replacing them.<\/li><li>If you don\u2019t use the flap, you are endangering the bumblebee nest \u2013 remember how much effort it took to establish it, and persevere<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-19a3dc7 elementor-widget elementor-widget-video\" data-id=\"19a3dc7\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/SH1d08PNjQw?si=yKf4-Jbf4173CguX&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-281ade1 elementor-widget elementor-widget-text-editor\" data-id=\"281ade1\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"6\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Protective flap and nest from Trubsko (Bohemian bumblebee)<\/strong><\/h4><p>For nests purchased from www.ceskycmelak.cz, it is necessary<b> Worker bee to queen: learn similarly by gradually tilting the flap. <em>However, the entire learning process can be significantly<\/em> Shorten to 2-3 days., <\/b>because there are more workers and they can sort it out.<\/p><p><strong>\u00a0The essential thing, however, is that the female workers first discover the way out of the hive.<\/strong> (you transport them enclosed), only then can training begin.<\/p><h5><strong>Proceed<\/strong><\/h5><ol><li>Starting in the Open position = the latch is up<\/li><li>The worker bee doesn't want to find a way out of the hive and go on a scouting flight. <br \/>This can take up to 24 hours because the worker bees have food reserves in the hive and don't need to rush out.<\/li><li>Continue by following the procedure as with the mother's training<br \/>However, overall, the training should not take longer than 3-5 days (depending on the conditions and the size of the workers).<\/li><li>If the workers don't manage to get through the flap or lift it immediately, don't despair and give them time.<\/li><li>Adjust the process speed according to the observation results<\/li><\/ol><div><em><b>Warning<\/b><\/em><\/div><ul><li><strong><em>Leave the ventilation opening closed. Only open it after the first worker ants appear in the nest. They will start to pass through the flap and the outside temperature rises above 20\u00b0C.<\/em><\/strong><\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-bbb9c7c elementor-widget elementor-widget-text-editor\" data-id=\"bbb9c7c\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"7\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Protective flap and drones<\/strong><\/h4><p>Males do not need to learn to work with the damper. As soon as they leave the nest, they fly off into the wild, do not perform a reconnaissance flight, and never return to the hive again. <br \/>Should they happen to find him (males born here or other males), they will only search around the hive and wait for the mothers to leave \u2013 they won't try the flap.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a67e5aa elementor-widget elementor-widget-text-editor\" data-id=\"a67e5aa\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"8\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Protective flap and bumblebees<\/strong><\/h4><p>The protective flap is an effective solution to prevent ingress into the ulcer <strong>can<\/strong> <strong>deter pests, including bumblebee queens<\/strong>. However, if the bumblebee is not deterred and waits at the entrance, with a bit of bad luck, it might wait until a worker bee opens it. The bumblebee then has a chance to enter the hive, squeezing under the slightly opened flap.<\/p><p>Here's a certain <b>The advantage of a heavier damper,<\/b> which reduces the chance of intrusion. As always, however, greater security is a nuisance. It's the same as when 3 locks on a door offer better protection, but they inconvenience you when you have to open them.<\/p><p>Although you may read that lighter latches are sufficient and that heavier ones will lift the brood anyway, we are of the opinion that they belong to the hive <b>Heavier rather than lighter flap <\/b>\u2013 <b>the risk of parasite penetration into it is smaller<\/b>There is no other effective protection against bumblebees, or we do not recommend it for beginners.<\/p><p>The photograph by J. Frantl documents unsuccessful attempts by a bumblebee to enter the nest. The trap worked well here.<\/p><p>The photograph shows L. Vettermanov\u00e1 with a cuckoo bee. Unfortunately, it managed to infiltrate the nest, kill the bumblebee queen, and enslave the remaining workers. The queen settled at the beginning of April 2019, but the nest was attacked by the cuckoo bee at the beginning of June.<br \/>Slipper <b>reduces bumblebee attacks<\/b>, but they sometimes get into the hive. <strong>However, that's no reason to get rid of bumblebees.<\/strong>, and Lenka didn't either \u2013 thanks, Lenka!<\/p><p style=\"text-align: center;\"><strong>Even bumblebees have their role in nature, let's respect them please. They are much more endangered than we realise.<\/strong><\/p><p>You will learn more about bumblebees <a href=\"https:\/\/www.cmelaciplus.cz\/en\/bumblebee-rearing-and-breeding\/\" target=\"_blank\" rel=\"noopener\">HERE<\/a><\/p><p>There you will read that bumblebees are interested in bumblebee nests in the initial stage, but sometimes in developed nests full of workers. Each species of bumblebee has a different strategy.\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-7cb9669 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"7cb9669\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5774b57\" data-id=\"5774b57\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-456d5dd elementor-widget elementor-widget-text-editor\" data-id=\"456d5dd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5596\" style=\"width: 1090px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5596\" class=\"size-full wp-image-5596\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_panensky_Jan_Frantl_2019.jpg\" alt=\"Bumblebees PLUS - Virgin Bumblebee \" width=\"1080\" height=\"810\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_panensky_Jan_Frantl_2019.jpg 1080w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_panensky_Jan_Frantl_2019-300x225.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_panensky_Jan_Frantl_2019-1024x768.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_panensky_Jan_Frantl_2019-768x576.jpg 768w\" sizes=\"(max-width: 1080px) 100vw, 1080px\" \/><p id=\"caption-attachment-5596\" class=\"wp-caption-text\">Bumblebees PLUS \u2013 Vestal Cuckoo Bumblebee (Psithyrus vestalis)<br \/>Photo J. Frantl (2019)<\/p><\/div><p>\u00a0<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-124dd67\" data-id=\"124dd67\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-019d1ac elementor-widget elementor-widget-text-editor\" data-id=\"019d1ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5595\" style=\"width: 1035px\" class=\"wp-caption alignnone\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5595\" class=\"size-full wp-image-5595\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_cesky_Lenka_Vetremanova_2019.jpg\" alt=\"Bumblebees PLUS - Czech Bumblebee\" width=\"1025\" height=\"737\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_cesky_Lenka_Vetremanova_2019.jpg 1025w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_cesky_Lenka_Vetremanova_2019-300x216.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Pacmelak_cesky_Lenka_Vetremanova_2019-768x552.jpg 768w\" sizes=\"(max-width: 1025px) 100vw, 1025px\" \/><p id=\"caption-attachment-5595\" class=\"wp-caption-text\">Bumblebees PLUS \u2013 Bohemian Cuckoo Bumblebee (Psithyrus bohemicus)<br \/>Photo L. Vettermanov\u00e1 (2019)<\/p><\/div><p>L<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-90bdac6 elementor-widget elementor-widget-text-editor\" data-id=\"90bdac6\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"9\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>What to do when bumblebees can't manage the flap<\/strong><\/h4>\n<p>We have experience (including our own) that it is <b>The problem is mostly in the head of a novice breeder.<\/b> <b>Has no experience<\/b>t, nervous and time for the bumblebees to learn the flap. Often they can't wait until the bumblebee has gone through the flap and want to deal with it immediately.<\/p>\n<p><b>Be therefore patient,<\/b> Follow the described steps. Every bumblebee queen will eventually learn to work with the flap, it's just a matter of time and the breeder's patience.<\/p>\n<p><em><strong>Further problems and their solutions<\/strong><\/em><\/p>\n<ul>\n<li>The latch does not move smoothly \u2013 the strike is not aligned horizontally (on both axes) = use a spirit level to align it<\/li>\n<li>The flap does not move smoothly \u2013 the flap is poorly manufactured, is crooked, or is mounted asymmetrically \u2013&gt; adjust the flap<\/li>\n<li>The flap doesn't move smoothly \u2013 the hinge is worn \u2013&gt; repair the flap<\/li>\n<li>Everything before is ok, but mother cannot open the flap -&gt; slightly open the flap and repeat the last training steps<\/li>\n<li>Everything previous is okay, but the worker cannot open the flap \u2013&gt; wait for another worker, they will help each other, or the smaller one will wait until the larger one opens the flap<\/li>\n<\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-12baa41 elementor-widget elementor-widget-video\" data-id=\"12baa41\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/31G7XTNjzOc&quot;,&quot;video_type&quot;:&quot;youtube&quot;,&quot;controls&quot;:&quot;yes&quot;}\" data-widget_type=\"video.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-wrapper elementor-open-inline\">\n\t\t\t<div class=\"elementor-video\"><\/div>\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9613eb2 elementor-widget elementor-widget-text-editor\" data-id=\"9613eb2\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"10\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><strong>Protective flap maintenance<\/strong><\/h4>\n<p>Don't forget <b>Clean the flap regularly of dirt <\/b>(e.g. pollen baskets) and check that it runs smoothly and closes properly.<br>You can read more about the collection of pollen pellets <a href=\"https:\/\/www.cmelaciplus.cz\/en\/bumblebee-breeders-aids\/#6\" target=\"_blank\" rel=\"noopener\">HERE<\/a><br>You can read more about the maintenance of the protective flap. <a href=\"https:\/\/www.cmelaciplus.cz\/en\/clapper\/\" target=\"_blank\" rel=\"noopener\">HERE&nbsp;<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7d8311e elementor-widget elementor-widget-text-editor\" data-id=\"7d8311e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div id=\"attachment_5604\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5604\" class=\"wp-image-5604\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochrana_klapka_pyl_Jakub_Cerny.jpg\" alt=\"Bumblebees PLUS - Pollen Basket Guard Flap\" width=\"350\" height=\"334\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochrana_klapka_pyl_Jakub_Cerny.jpg 640w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci_PLUS_Ochrana_klapka_pyl_Jakub_Cerny-300x286.jpg 300w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5604\" class=\"wp-caption-text\">Protective flap full of pollen granules<br \/>Photo by J. \u010cern\u00fd (2019)<\/p><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d300d8a elementor-widget elementor-widget-text-editor\" data-id=\"d300d8a\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"11\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h4><b>Final recommendations<\/b><\/h4><ul><li><strong>Teach your bumblebees to use the entrance reducer<\/strong> \u2013 protects them in the nest<\/li><li><strong>Be strict with yourself and manage your unnecessary worries about flapjacks being a bother<\/strong> \u2013 it\u2019s like with little children, they also have to learn to walk by themselves \u2013 with your help, but by themselves<\/li><li><strong>Do not add to the numbers of those who do not use the flap in an attempt not to disturb the bumblebees, thereby causing the almost certain demise of the nest in an otherwise good hive.<\/strong><\/li><li><strong>Take time for regular checks<\/strong> and to the maintenance of the flap. Even a good flap can jam or not close properly, leaving a path open for parasites and enemies of bumblebees.<\/li><li><strong>Enjoy the moments and observations<\/strong>, when teaching bumblebees to navigate a protective flap.<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Um\u011bn\u00ed klapky &#8211; jak nau\u010dit \u010dmel\u00e1ky proch\u00e1zet klapkou Co se zde dozv\u00edte? Vysv\u011btl\u00edme v\u00e1m, jak nau\u010dit matku-kr\u00e1lovnu proch\u00e1zet ochrannou klapkou Vysv\u011btl\u00edme jak klapku zvl\u00e1daj\u00ed d\u011blnice a jestli se pot\u0159ebuj\u00ed s klapkou u\u010dit Zkus\u00edme v\u00e1s p\u0159esv\u011bd\u010dit, \u017ee \u010dmel\u00e1ci klapku zvl\u00e1dnou a \u017ee to nen\u00ed tak\u00a0t\u011b\u017ek\u00e9 Datum posledn\u00ed aktualizace: 12\/5\/2026 Obsah K \u010demu slou\u017e\u00ed ochrann\u00e1 klapka a&nbsp;&hellip;<\/p>","protected":false},"author":2,"featured_media":6575,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"wf_page_folders":[23],"class_list":["post-756","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Um\u011bn\u00ed klapky &#8211; \u010cmel\u00e1ci PLUS<\/title>\n<meta name=\"description\" content=\"Klapka je pro \u010dmel\u00e1ky v \u00falu nezbytn\u00e1 ochrana Bez klapky bude hn\u00edzdo zni\u010deno zav\u00edje\u010dem. 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