{"id":6938,"date":"2020-05-29T22:17:40","date_gmt":"2020-05-29T22:17:40","guid":{"rendered":"https:\/\/www.cmelaciplus.cz\/?page_id=6938"},"modified":"2026-05-10T00:06:24","modified_gmt":"2026-05-09T22:06:24","slug":"when-and-how-to-ventilate-during-a-storm","status":"publish","type":"page","link":"https:\/\/www.cmelaciplus.cz\/en\/kdy-a-jak-vetrat-ulek\/","title":{"rendered":"When and how to ventilate a bumblebee swarm"},"content":{"rendered":"<div data-elementor-type=\"wp-page\" data-elementor-id=\"6938\" class=\"elementor elementor-6938\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-1afaa77f elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"1afaa77f\" 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-22ce081d\" data-id=\"22ce081d\" 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-7f2d30ea elementor-widget elementor-widget-heading\" data-id=\"7f2d30ea\" 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\">Ventilating a beehive isn't a science, but you do need to know how.<\/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-396132ef elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"396132ef\" 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-676c37e8\" data-id=\"676c37e8\" 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-e93d2dd 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=\"e93d2dd\" 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-e93d2dd\" 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-e93d2dd\" 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-2ce1ac4f\" data-id=\"2ce1ac4f\" 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-96e9bda elementor-widget elementor-widget-text-editor\" data-id=\"96e9bda\" 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<h4><em><strong>What you will learn here<\/strong><\/em><\/h4><ul><li><em>When and how to ventilate a bumblebee swarm<\/em><\/li><li><em>What should I go by?<\/em><\/li><li><em>How sensitive are bumblebees to drafts and when<\/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-3032d15 elementor-widget elementor-widget-text-editor\" data-id=\"3032d15\" 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><em>Last updated: 04\/06\/2024<\/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-4f5dfc8 elementor-widget elementor-widget-text-editor\" data-id=\"4f5dfc8\" 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><img decoding=\"async\" class=\"size-full wp-image-37899 alignleft\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2026\/05\/Cmelaci-PLUS-abstrakt-www-small.jpg\" alt=\"page abstract\" width=\"150\" height=\"150\"><\/h4><ul>\n<li><strong>When introducing bumblebees into a hive, the ventilation hole must be closed.<\/strong><\/li>\n<li><strong>Ventilation with a sense of care: <\/strong>The burrow needs air, not a draught.<\/li>\n<li><strong>CO2 is also a problem for bumblebees.<\/strong>in a closed hive, a strong colony can produce excessive CO2<\/li>\n<li><strong>Humidity doesn't fundamentally matter to the nest:<\/strong> High humidity in the hive isn't a big problem. Airflow to the nest is more important<\/li>\n<li><strong>Light in the hive, mother<\/strong>If the ventilation is open, it's a problem for settling \u2013 bumblebees will try to find their way towards the light.<\/li>\n<li><strong>Don't rush:<\/strong> You'll start to ventilate only when the bumblebees learn to go through the flap.<\/li>\n<li><strong>Watch the behaviour of bumblebees:<\/strong> If bumblebees lack air or have an excess of CO2, they will attempt to ventilate the hive by fanning their wings.<\/li>\n<li><strong>Blocked ventilation<\/strong> Bumblebees sometimes cover the ventilation opening with bedding, they do this instinctively. If they are not ventilating at the entrance at the same time, there is no need to worry about it. Alternatively, during inspection, remove some of the bedding and uncover the ventilation opening.&nbsp;<\/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-06cec81 elementor-widget elementor-widget-text-editor\" data-id=\"06cec81\" 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\">Introduction<\/a><\/strong><br \/><strong><a href=\"#3\">Ventilating the hive during and after queen introduction<\/a><\/strong><br \/><strong><a href=\"#4\">Ventilating the hive after the queen has settled in and while you are teaching her to go through the excluder<\/a><\/strong><br \/><strong><a href=\"#5\">Ventilating the hive after the queen has reliably passed through the excluder<\/a><\/strong><br \/><strong><a href=\"#6\">Ventilating the hive after the first generation of workers is born<\/a><\/strong><br \/><strong><a href=\"#7\">Ventilation when the hive has first and second generation workers<\/a><\/strong><br \/><strong><a href=\"#8\">Ventilation when the hive has a strong brood nest<\/a><\/strong><br \/><strong><a href=\"#9a\">Ventilation for new mothers and males<\/a><\/strong><br \/><strong><a href=\"#9\">Ventilating the hive after placing a bumblebee nest in it<\/a><\/strong><br \/><strong><a href=\"#10\">Ventilation and parasites<\/a><\/strong><br \/><strong><a href=\"#11\">Workers and their behaviour \u2013 an important indication of the need to ventilate the hive<\/a><\/strong><br \/><strong><a href=\"#12\">Further tips and texts on hive ventilation<\/a><\/strong><br \/><strong><a href=\"#13\">Conclusion<\/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-c5ae6c6 elementor-widget elementor-widget-text-editor\" data-id=\"c5ae6c6\" 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>Introduction<\/strong><\/h4><p>Every bumblebee house must be <strong>fitted with a ventilation opening<\/strong>. The ventilation opening provides <strong>air circulation in the hive<\/strong> \u2013 oxygen supply, CO\u2082 removal, moisture removal. Sometimes a gentle air circulation is advisable so that inside the hive <b>in excessive amounts, mould did not form<\/b>.\u00a0<\/p><p>A healthy bumblebee nest can handle mould, as long as there is enough space in the hive. <a href=\"https:\/\/www.cmelaciplus.cz\/en\/bedding\/\" target=\"_blank\" rel=\"noopener\">Linings<\/a>. The workers keep the mould away from the wax comb. The workers can clean this with their mandibles. More <b>draughts can damage the nest<\/b>, So, one ventilation hole is enough. The bumblebees sometimes cover even that with lining if they feel the need.<\/p><p>The hive's ventilation opening is<strong> covered with a cap\/closure<\/strong> Yes, it was also possible to regulate the size of the ventilation opening.<\/p><p>In the following text, you will find <strong>Instructions on how to regulate ventilation in a beehive<\/strong> And what should one be guided by?.<\/p><p>\u00a0<\/p><p><b>Temperature in the hive<\/b> varies greatly depending on where and how you measure it. In the core of the nest, you can measure 30\u00b0C, and at the same time, on the surface, only 10\u00b0C. Measuring temperatures is therefore problematic. Therefore, if you are measuring the temperature in your hives, measure it in the same place so that you can compare the measured values. The optimal is <b>measure the air temperature above the lining<\/b>, preferably in the centre of such a space. <br \/>Measuring the temperature in the lining is pointless. The lining is thermal insulation and you don't know what you're measuring. It's like measuring the temperature in the bedroom but having the thermometer placed under the duvet. \ud83d\ude42<\/p><p>Unless otherwise stated, we provide the air temperature outside the cage \u2013 the ambient air temperature \u2013 in the instructions.<\/p><p>\u00a0<\/p><p><strong><em>Important note<\/em><\/strong><\/p><ul><li><em>Our guides are based on the assumption that a bale of approximately 12-14 litres is filled to 2\/3 or up to the ventilation opening with high-quality bedding. The bedding acts as thermal insulation.<\/em><\/li><li><em>Small hollows, insufficient bedding, or poor-quality bedding are a serious handicap for an owl in both cold and hot weather.<\/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-b2ab28b elementor-widget elementor-widget-text-editor\" data-id=\"b2ab28b\" 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_3625\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" aria-describedby=\"caption-attachment-3625\" class=\"wp-image-3625\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Pozorovaci_okenko_7-e1580065615388.jpg\" alt=\"Bumblebees PLUS - Hive (bumblebee house) with an open ventilation slit\" width=\"350\" height=\"401\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Pozorovaci_okenko_7-e1580065615388.jpg 540w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Cmelaci_PLUS_Pozorovaci_okenko_7-e1580065615388-262x300.jpg 262w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-3625\" class=\"wp-caption-text\">Startle with an open vent<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-9ff5c19 elementor-widget elementor-widget-text-editor\" data-id=\"9ff5c19\" 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>Ventilating the hive during and after queen introduction<\/strong><\/h4><p><strong>The ventilation opening must be closed!<\/strong><\/p><p>When placing a queen bee into a hive (bumblebee nest), it is necessary to keep the hive ventilation closed as per the instructions. <a href=\"https:\/\/www.cmelaciplus.cz\/en\/how-to-introduce-a-queen-bee-to-a-hive\/\" target=\"_blank\" rel=\"noopener\">HERE\u00a0<\/a><\/p><p>If the mother during the hive inspection <strong>I will see the ventilation pass through the light<\/strong>Oh, the fright might be able to leave this way.<\/p><p>It could also be one of<strong>\u00a0reasons why a mother will not leave her child's side<\/strong><b> and why does it \u201efreeze\u201c in the hive<\/b>.\u00a0<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 );\">This is often forgotten, yet all it takes is to close the opening, or cover it with tape, to ensure perfect darkness in the hive.<\/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-1bb6c9f elementor-widget elementor-widget-text-editor\" data-id=\"1bb6c9f\" 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_3109\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" aria-describedby=\"caption-attachment-3109\" class=\"wp-image-3109\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi.jpg\" alt=\"Bumblebees PLUS - Startle with o\" width=\"350\" height=\"254\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi.jpg 1238w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi-300x218.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi-1024x744.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi-768x558.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Ochrana_ulku_proti_cmelakum_ulek_na-zavesech_na-zdi-1232x896.jpg 1232w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-3109\" class=\"wp-caption-text\">Startle with closed vent after nut insertion<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<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-38d1c27 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"38d1c27\" 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-d2c975a\" data-id=\"d2c975a\" 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-9834052 elementor-widget elementor-widget-text-editor\" data-id=\"9834052\" 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_6966\" style=\"width: 260px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6966\" class=\"wp-image-6966\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-scaled.jpg\" alt=\"Bumblers PLUS - Deformed ventilation cover of a commercially available bumblebee nest box\" width=\"250\" height=\"444\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-scaled.jpg 608w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru-864x1536.jpg 864w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><p id=\"caption-attachment-6966\" class=\"wp-caption-text\">Deformed cover of the ventilation opening of a commercially available bee (bumblebee) hive<br \/>Photo O. Hercog (2020)<\/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-4e8f514\" data-id=\"4e8f514\" 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-934a3f5 elementor-widget elementor-widget-text-editor\" data-id=\"934a3f5\" 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_6967\" style=\"width: 260px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6967\" class=\"wp-image-6967\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-scaled.jpg\" alt=\"Bumblers PLUS - Deformed ventilation cover of a commercially available bumblebee nest box\" width=\"250\" height=\"333\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-scaled.jpg 810w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-225x300.jpg 225w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-768x1024.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-1152x1536.jpg 1152w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-1232x1643.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Deformovana_krytka_vetracicho_otvoru_reseni_Petr_Gepls_Groebl-1320x1760.jpg 1320w\" sizes=\"(max-width: 250px) 100vw, 250px\" \/><p id=\"caption-attachment-6967\" class=\"wp-caption-text\">Deformed cover of the ventilation opening of a commercially available bee (bumblebee) hive<br \/>Mop solution<br \/>Photo: Petr Gebls Groebl<\/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-19e5b5c elementor-widget elementor-widget-text-editor\" data-id=\"19e5b5c\" 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>Ventilating the hive after the queen has settled in and while you are teaching her to go through the excluder<\/strong><\/h4><p><strong>The ventilation opening must be closed!<\/strong><\/p><p>Once the mother has settled, she needs to be taught to go through the protective flap, see the procedure <a href=\"https:\/\/www.cmelaciplus.cz\/en\/im-a-flap\/\" target=\"_blank\" rel=\"noopener\">HERE<\/a><br \/>As long as <strong>A mother reliably won't teach you to get through a protective flap.<\/strong> and a ventilation will let light through,<strong> can the fright try to leave this way<\/strong>.<\/p><p>It can also be <strong>one of the reasons why the mother's training to go through the flap is failing<\/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-d7d437a elementor-widget elementor-widget-text-editor\" data-id=\"d7d437a\" 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_5566\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-5566\" class=\"wp-image-5566\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci-PLUS_Matka_cmellaka-zemniho_Bobina_na_klapce_-Bara-Klimesova.jpg\" alt=\"Bumblebees PLUS - Buff-tailed bumblebee queen on protective flap\" width=\"350\" height=\"467\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci-PLUS_Matka_cmellaka-zemniho_Bobina_na_klapce_-Bara-Klimesova.jpg 720w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/03\/Cmelaci-PLUS_Matka_cmellaka-zemniho_Bobina_na_klapce_-Bara-Klimesova-225x300.jpg 225w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-5566\" class=\"wp-caption-text\">Bumblebee queen (Bombus terrestris) on a protective flap<br \/>Bobin's mother's name<br \/>Photo B. Klime\u0161ov\u00e1 (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-1eba246 elementor-widget elementor-widget-text-editor\" data-id=\"1eba246\" 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>Ventilating the hive after the queen has reliably passed through the excluder<\/strong><\/h4><p><strong>We recommend keeping the ventilation opening closed if the external temperature does not exceed 20\u00b0C.<br \/>The ventilation can be slightly ajar, but you don't need to ventilate until the temperature is above 20\u00b0C.<br \/><\/strong><\/p><p><strong>Some breeders ventilate at temperatures of 15<\/strong><strong style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif;\">\u00b0C, and that's fine too. If there's enough bedding in the hive, the mother handles everything perfectly.<\/strong><\/p><p>In the solitary phase (mother is alone), it is <strong>Air consumption of the mother small<\/strong> and if <strong>The fright is not hermetically sealed<\/strong>, it gets enough oxygen into it.<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><\/p><p>Nor is the mother's CO2 production large, and <strong>There is no need to ventilate.<\/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-834527c elementor-widget elementor-widget-text-editor\" data-id=\"834527c\" 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>Ventilating the hive after the first generation of workers is born<\/strong><\/h4><p><strong>We recommend keeping the vent closed if the outside temperature does not exceed 15 \u2013 20\u00b0C.<\/strong><\/p><p>Once the first worker bee is born, it's a good idea to have the ventilation opening closed. It's necessary to wait a day or two, <b>until the workers learn to pass through the protective flap<\/b>. <br \/>If a worker bee in the hive<strong>they can see light coming through the ventilation opening, they can try to escape this way<\/strong>. <br \/>But it doesn\u2019t take long \u2013 once the workers start going through the trapdoor, you don\u2019t need to pay attention and <strong>then follow primarily the temperature,<\/strong> alternatively<strong> behaviour of workers<\/strong>.<\/p><p>U<b> of future generations of workers <\/b>you needn't fear, they will be following the path of the older sisters.\u00a0<\/p><p>If you have modified the hive's ventilation with pipe attachments and there is an elbow (bend), light will not shine into the hive. Therefore, you don't need to worry about it bothering the workers. <br \/>We are writing about this solution <a href=\"https:\/\/www.cmelaciplus.cz\/en\/additional-ventilation-control-for-commercially-available-pellets\/\" target=\"_blank\" rel=\"noopener\">HERE<\/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-dee37a6 elementor-widget elementor-widget-text-editor\" data-id=\"dee37a6\" 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_6746\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6746\" class=\"wp-image-6746\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulek_s_vetranim_z_HT_trubky.jpg\" alt=\"Bumblebees PLUS - Shock with ventilation from HT pipe\" width=\"500\" height=\"340\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulek_s_vetranim_z_HT_trubky.jpg 1231w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulek_s_vetranim_z_HT_trubky-300x204.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulek_s_vetranim_z_HT_trubky-1024x695.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulek_s_vetranim_z_HT_trubky-768x522.jpg 768w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-6746\" class=\"wp-caption-text\">Ventilation socket from HT pipe<br \/>Photo O. Hercog (5\/2020)<\/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-884171b elementor-widget elementor-widget-text-editor\" data-id=\"884171b\" 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>Ventilation when the hive has first and second generation workers<\/strong><\/h4><p><strong>We recommend keeping the vent open if the outside temperature does not drop below 10 \u2013 15\u00b0C.<\/strong><\/p><p>The nest with workers is already producing enough heat and <strong>is not as sensitive to a drop in external temperatures.<\/strong><\/p><p>On the contrary, it is necessary to ensure that into the hive <strong>breathed in the fresh air<\/strong>, the CO2 produced here did not accumulate and mould did not form.<\/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-97a1582 elementor-widget elementor-widget-video\" data-id=\"97a1582\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/qn1hLQueO2c&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-f418801 elementor-widget elementor-widget-text-editor\" data-id=\"f418801\" 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>Ventilation when the hive has a strong brood nest<\/strong><\/h4><p><strong>We recommend keeping the vent open as long as the outside temperature does not drop below 5-10\u00b0C. <\/strong><br \/><strong>If the temperature drops below 5\u00b0C, it is advisable to close the ventilation, but not hermetically.<\/strong><\/p><p>The nest with workers is already producing enough heat and <strong>is not as sensitive to a drop in external temperatures<\/strong>.<\/p><p>On the contrary, it is necessary, and<strong>fresh air was flowing into the building<\/strong> and the CO2 produced here did not accumulate. For a strong nest, the amount of CO2 produced is quite significant.<\/p><p>Just as the share of CO2<strong> humidity is rising in the nest<\/strong>, even above 95%. Humidity in itself isn&#x27;t harmful, provided you ventilate the room. <strong>Ventilation<\/strong> so it is necessary for<b> Malou\u00a0<\/b><strong>air circulation<\/strong> a <strong>Dehumidification<\/strong> as<strong> prevention of mould formation<\/strong>.<\/p><p>Information on draining moisture from ulcers can be found HERE (under preparation).<\/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-10c25bd elementor-widget elementor-widget-text-editor\" data-id=\"10c25bd\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"9a\" 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>Ventilation for new mothers and males<\/strong><\/h4><p>Follow the same rules, <strong>as for a nest with workers<\/strong>. If males cannot find a way out, it is better to have the ventilation slightly ajar. Be careful with temperatures above 20.\u00a0<strong style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif;\">\u00b0C to the necessity of ventilation and in a strong nest for air supply and CO2 ventilation.\u00a0<\/strong><\/p><p><strong style=\"color: var( --e-global-color-text ); font-family: var( --e-global-typography-text-font-family ), Sans-serif;\">Young mothers<\/strong><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 );\"> they will find their way out of the hive and will return to it.<\/span><\/p><p><strong>Males<\/strong> sometimes they search for a way longer and you find them sitting on the lining. If into the hive <strong>light showing through the ventilation<\/strong>, Here, males can sit and wait. The light sometimes activates them and they attempt to mate with young mothers. <b>Nooks where light does not pass through ventilation have an advantage<\/b> \u2013 ideally thanks to the bent ventilation system (elbow joint).\u00a0<\/p><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-f98fed7 elementor-widget elementor-widget-text-editor\" data-id=\"f98fed7\" 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>Ventilating the hive after placing a bumblebee nest in it<\/strong><\/h4><p><strong>We recommend keeping the ventilation opening closed if the external temperature does not exceed 20\u00b0C.<\/strong><\/p><p>Once you place a new nest in the apiary (purchased or evacuated nest, see <a href=\"https:\/\/www.cmelaciplus.cz\/en\/quick-company\/\" target=\"_blank\" rel=\"noopener\">HERE<\/a> it is necessary <strong>to wait for the workers to pass through the protective flap<\/strong>. If they see light shining through a ventilation opening in the burrow, they may try to escape that way.<\/p><p>But this doesn't last long and as soon as the workers start to pass through the colony, you don't have to worry about it and<strong> Primarily, follow the temperature and the workers' behaviour.<\/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-b08e4b2 elementor-widget elementor-widget-text-editor\" data-id=\"b08e4b2\" 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>Ventilation and parasites<\/strong><\/h4><p>With a strong hive, it is advisable to leave the ventilation slightly open even at night, and not just for air supply. Especially where there is<strong> ventilation opening equipped with a sticky parasite trap<\/strong> It's good to leave the ventilation slightly open. <br \/>It distracts parasites from the protective flap and other places where parasites may try to enter the ulcer.<\/p><p>Does it make sense to do it at a time when such parasites are appearing? We mean<a href=\"https:\/\/www.cmelaciplus.cz\/en\/bumblebees-and-european-hornets\/\" target=\"_blank\" rel=\"noopener\"> geranium borer<\/a>. It only appears on warm nights in May.<\/p><p>The condition, of course, is to have the ventilation trap prepared according to the instructions, see <a href=\"https:\/\/www.cmelaciplus.cz\/en\/panes\/\" 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-5d80cdc elementor-widget elementor-widget-text-editor\" data-id=\"5d80cdc\" 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_6970\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6970\" class=\"wp-image-6970\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-scaled.jpg\" alt=\"Bumblebees PLUS - Ventilation with sticky trap at night\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-scaled.jpg 608w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-1152x2048.jpg 1152w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-1232x2190.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Vetraci_otvor_s_lepivou_pasti_v_noci-1320x2346.jpg 1320w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-6970\" class=\"wp-caption-text\">Ventilation with a sticky trap at night<br \/>Photo: O. Hercog (5\/2020)<\/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-8fd963d elementor-widget elementor-widget-text-editor\" data-id=\"8fd963d\" 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><strong>Workers and their behaviour \u2013 an important indication of the need to ventilate the hive<\/strong><\/h4><p>For breeders, it is usually enough to monitor the external temperature, but<strong> an important indicator is also the behaviour of the workers<\/strong>.<\/p><p>If you see female workers, how <strong>a bee sits on the hive entrance<\/strong>, or fits <strong>on the lining <\/strong>a <strong>beats its wings<\/strong>, it can mean the following:<\/p><ul><li>The dog has a high temperature.<\/li><li>The kennel has high humidity<\/li><li>The blood has an excessive amount of CO2<\/li><\/ul><p>P<strong>Listen therefore to the female workers and open the ventilation<\/strong>, until this behaviour of theirs subsides.<\/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-aaa3bbf elementor-widget elementor-widget-video\" data-id=\"aaa3bbf\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/4xTg1-ETm6c&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-b93ef0a elementor-widget elementor-widget-text-editor\" data-id=\"b93ef0a\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"12\" 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>Further tips and texts on hive ventilation<\/b><\/h4><p>The ventilation opening and its preparation are described <a href=\"https:\/\/www.cmelaciplus.cz\/en\/panes\/\" target=\"_blank\" rel=\"noopener\">HERE<\/a><\/p><p>Improvements to ventilation (and the limitations of such a solution) are described <a href=\"https:\/\/www.cmelaciplus.cz\/en\/how-to-ventilate\/\" target=\"_blank\" rel=\"noopener\">HERE <\/a>a<a href=\"http:\/\/ZDE https:\/\/www.cmelaciplus.cz\/vychytavky\/\" target=\"_blank\" rel=\"noopener\" data-wplink-url-error=\"true\"> HERE<\/a><\/p><p>Modifications to the ventilation of commercially available beehives are described <a href=\"https:\/\/www.cmelaciplus.cz\/en\/vychytavky\/\" 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-79dc88c elementor-widget elementor-widget-text-editor\" data-id=\"79dc88c\" 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_2982\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-2982\" class=\"wp-image-2982\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Vetrani_-ulku_uprava_vetrani_s-vickem_z_3D_tiskarny.jpg\" alt=\"Bumbbee box ventilation cap using a 3D printer. Additional passage for parasites such as Aphomia sociella\" width=\"350\" height=\"467\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Vetrani_-ulku_uprava_vetrani_s-vickem_z_3D_tiskarny.jpg 720w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/01\/Vetrani_-ulku_uprava_vetrani_s-vickem_z_3D_tiskarny-225x300.jpg 225w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-2982\" class=\"wp-caption-text\">Ventilation of the hive \u2013 external protection with a sticky trap \u2013 3D printed cover<br \/>Photo O. Hercog (2018)<\/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-5fbe987 elementor-widget elementor-widget-text-editor\" data-id=\"5fbe987\" 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_6741\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6741\" class=\"wp-image-6741\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-scaled.jpg\" alt=\"Bumblebees PLUS - Ventilation modification of commercially available hives - example\" width=\"350\" height=\"622\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-scaled.jpg 608w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-169x300.jpg 169w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-576x1024.jpg 576w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-768x1365.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-864x1536.jpg 864w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-1152x2048.jpg 1152w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-1232x2190.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_UPrava_vetrani_komercne_dostupnych_ulku_priklad1-1320x2347.jpg 1320w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-6741\" class=\"wp-caption-text\">Modification of ventilation in commercially available hives \u2013 an example<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<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-bad2467 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"bad2467\" 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-d6dbfb5\" data-id=\"d6dbfb5\" 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-7fd6317 elementor-widget elementor-widget-text-editor\" data-id=\"7fd6317\" 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_16890\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16890\" class=\"wp-image-16890\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-scaled.jpg\" alt=\"Bumblebees PLUS - Hive Vent Cover\" width=\"500\" height=\"281\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-scaled.jpg 2560w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-300x169.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-1024x576.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-768x432.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-1536x864.jpg 1536w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-2048x1152.jpg 2048w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-1232x693.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-1920x1080.jpg 1920w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Krytka-vetrani-ulku-1320x743.jpg 1320w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-16890\" class=\"wp-caption-text\">Ventilation cover for the hive<br \/>Photo O. Hercog (5\/2021)<\/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-127ad0f\" data-id=\"127ad0f\" 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-1cbae2e elementor-widget elementor-widget-text-editor\" data-id=\"1cbae2e\" 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_16891\" style=\"width: 510px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-16891\" class=\"wp-image-16891\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-scaled.jpg\" alt=\"Bumblebee PLUS - Hive Ventilation Protection - 3D Printed Cover\" width=\"500\" height=\"281\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-scaled.jpg 2560w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-300x169.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-1024x576.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-768x432.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-1536x864.jpg 1536w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-2048x1152.jpg 2048w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-1232x693.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-1920x1080.jpg 1920w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2021\/05\/Cmelaci-PLUS-Ochrana-vetrani-ulku-Krytka-z-3D-tiskarny-1320x743.jpg 1320w\" sizes=\"(max-width: 500px) 100vw, 500px\" \/><p id=\"caption-attachment-16891\" class=\"wp-caption-text\">Ulcer ventilation protection \u2013 3D printed cap<br \/>Photo O. Hercog (5\/2021)<\/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-63ffa47 elementor-widget elementor-widget-text-editor\" data-id=\"63ffa47\" 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_6975\" style=\"width: 360px\" class=\"wp-caption aligncenter\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-6975\" class=\"wp-image-6975\" src=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-scaled.jpg\" alt=\"Bumblebees PLUS - Hives (bumblebee nests) with a ventilation top\" width=\"350\" height=\"350\" srcset=\"https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-scaled.jpg 1080w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-300x300.jpg 300w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-1024x1024.jpg 1024w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-150x150.jpg 150w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-768x768.jpg 768w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-1536x1536.jpg 1536w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-2048x2048.jpg 2048w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-1232x1232.jpg 1232w, https:\/\/www.cmelaciplus.cz\/wp-content\/uploads\/2020\/05\/Cmelaci_PLUS_Ulky-_svetracim_nastavkem-1320x1320.jpg 1320w\" sizes=\"(max-width: 350px) 100vw, 350px\" \/><p id=\"caption-attachment-6975\" class=\"wp-caption-text\">Hives (beehauses) with a ventilation top<br>Caution regarding the rules for using attachments.<br>Photo O. Hercog (5\/2020)<\/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-90326b6 elementor-widget elementor-widget-text-editor\" data-id=\"90326b6\" data-element_type=\"widget\" data-e-type=\"widget\" id=\"13\" 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>Conclusion<\/strong><\/h4><p>If your <strong>A sudden fright<\/strong> and you're only about to set the mother, sometimes him<strong> Ventilate and dry<\/strong> (in the sun, or take the roof off at home). After the seating attempts began <strong>Don't open the box unnecessarily yet.<\/strong>.<\/p><p>Bumblebees are <strong>sensitive to micro-cracks<\/strong>, especially the mother when she is looking at the nesting site or when she is settling into the hive. Therefore, it is recommended<strong> hood with one vent<\/strong>, where there is no draught.<\/p><p>At the time, <strong>When installing a queen excluder, no light must shine into the hive.<\/strong>. Some commercial products do not meet this condition and therefore the ventilation opening needs to be sealed, for example by covering it with opaque adhesive tape.<\/p><p>In an ulcer with a mother in a solitary phase, you can leave the vent closed if<b> average external temperatures will not exceed 20\u00b0<\/b>C<\/p><p>Ventilation at the time <b>hatching of the first generation of workers <\/b>solve it until they find a way out. For subsequent generations of workers, this is no longer necessary.<\/p><p>At the ulcer <strong>With a stronger nest, you don't have to close the ventilation completely.<\/strong>, until the temperatures drop significantly.<\/p><p>If you have a scare equipped with a sticky trap (recommended), you must have <strong>Ventilation open even at night<\/strong>, otherwise the sticky trap is ineffective.<\/p><p>If<strong> labourer on the garlic, or on the liner flaps its wings, it is necessary to ventilate<\/strong>.\u00a0<\/p><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-7b2ac09 elementor-widget elementor-widget-video\" data-id=\"7b2ac09\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;youtube_url&quot;:&quot;https:\\\/\\\/youtu.be\\\/TYX5r54k7EQ&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\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>V\u011btr\u00e1n\u00ed \u00falu nen\u00ed v\u011bda, je ale pot\u0159eba v\u011bd\u011bt jak Co se zde dozv\u00edte Kdy a jak v\u011btrat \u00falek s\u00a0\u010dmel\u00e1ky Podle \u010deho se \u0159\u00eddit Jak moc a kdy jsou \u010dmel\u00e1ci na v\u011btr\u00e1n\u00ed choulostiv\u00ed Datum posledn\u00ed aktualizace: 6\/4\/2024 P\u0159i usazov\u00e1n\u00ed \u010dmel\u00e1k\u016f do \u00falku mus\u00ed b\u00fdt v\u011btrac\u00ed otvor uzav\u0159en V\u011btr\u00e1n\u00ed s citem: do \u00falku pat\u0159\u00ed vzduch, ne pr\u016fvan&nbsp;&hellip;<\/p>","protected":false},"author":3,"featured_media":3625,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"wf_page_folders":[23],"class_list":["post-6938","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>Kdy a jak v\u011btrat \u00falek s \u010dmel\u00e1ky &#8211; \u010cmel\u00e1ci PLUS<\/title>\n<meta name=\"description\" content=\"V\u011btr\u00e1n\u00ed v \u010dmel\u00e1\u010d\u00edm \u00fale nen\u00ed po celou dobu stejn\u00e9. Spr\u00e1vn\u00e9 v\u011btr\u00e1n\u00ed v dob\u011b, kdy je v \u00falu jen matka \u010dmel\u00e1ka, prvn\u00ed d\u011blnice a rozvinut\u00e9 hn\u00edzdo.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.cmelaciplus.cz\/en\/when-and-how-to-ventilate-during-a-storm\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Kdy a jak v\u011btrat \u00falek s \u010dmel\u00e1ky &#8211; \u010cmel\u00e1ci PLUS\" \/>\n<meta property=\"og:description\" content=\"V\u011btr\u00e1n\u00ed v \u010dmel\u00e1\u010d\u00edm \u00fale nen\u00ed po celou dobu stejn\u00e9. 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