{"id":21,"date":"2025-12-29T16:23:47","date_gmt":"2025-12-29T15:23:47","guid":{"rendered":"http:\/\/lerucherdesfavorites.fr\/?p=21"},"modified":"2026-01-01T12:40:55","modified_gmt":"2026-01-01T11:40:55","slug":"traitement-varroa-pourquoi-et-comment-utiliser-lacide-oxalique-en-egouttement","status":"publish","type":"post","link":"https:\/\/lerucherdesfavorites.fr\/?p=21","title":{"rendered":"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ?"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Pourquoi traiter contre le varroa en hiver?<\/h2>\n\n\n\n<p>Le <em><strong>Varroa destructor<\/strong><\/em> est un parasite redoutable pour nos abeilles. En hiver, alors que la colonie est affaiblie et regroup\u00e9e en grappe, ce parasite prolif\u00e8re et affaiblit encore plus les abeilles. Un traitement \u00e0 l\u2019acide oxalique par \u00e9gouttement est <strong>efficace, simple et peu co\u00fbteux<\/strong> pour r\u00e9duire la population de varroas avant le red\u00e9marrage de la colonie au printemps.<\/p>\n\n\n\n<p>Ce traitement \u00e9limine <strong>jusqu\u2019\u00e0 90 % des varroas phor\u00e9tiques<\/strong> (ceux sur les abeilles), mais pas ceux dans le couvain.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Quand intervenir ?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>P\u00e9riode id\u00e9ale<\/strong>: Entre <strong>d\u00e9cembre et janvier<\/strong>, quand il n\u2019y a <strong>plus de couvain<\/strong> (ou tr\u00e8s peu). Les varroas, sans larves \u00e0 parasiter, sont tous sur les abeilles adultes.<\/li>\n\n\n\n<li><strong>Temp\u00e9rature:<\/strong> <strong>Entre 8 \u00b0C et 10 \u00b0C<\/strong> (pas en dessous ni au dessus, pour \u00e9viter de refroidir la grappe et favoriser le d\u00e9grappage), sans gel\u00e9e la nuit suivant le traitement.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Comment faire?<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pr\u00e9parer de la solution: \n<ul class=\"wp-block-list\">\n<li>pr\u00e9parer le sirop 50\/50 (par exemple 1 litre d&rsquo;eau (=1kg) + 1kg de sucre &#8211; ce qui donnera environ 1,5 litres de sirop)<\/li>\n\n\n\n<li>Verser le sachet d&rsquo;API-BIOXAL (32g) et 500 ml de sirop dans un r\u00e9cipient herm\u00e9tique et m\u00e9langer. Quantit\u00e9 suffisante pour 10 ruches.<\/li>\n\n\n\n<li>Maintenez la pr\u00e9paration de la solution entre 25 et 30\u00b0C. Personnellement, j&rsquo;utilise une glaci\u00e8re isotherme et y disposant des bouteilles d&rsquo;eau chaude et le r\u00e9cipient avec la solution.<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Appliquer le traitement:\n<ul class=\"wp-block-list\">\n<li>Pr\u00e9lever 50ml de solution dans un seringue.<\/li>\n\n\n\n<li>enfumer l\u00e9g\u00e8rement l&rsquo;entr\u00e9e de la ruche.<\/li>\n\n\n\n<li>ouvrir d\u00e9licatement le couvre cadre et enfumer l\u00e9g\u00e8rement<\/li>\n\n\n\n<li>localiser la grappe<\/li>\n\n\n\n<li>Verser 5ml maximum de la solution entre les inter-cadres occup\u00e9s par la grappe, directement sur les abeilles et vider le reste du contenu de la seringue dans le r\u00e9cipient.<\/li>\n\n\n\n<li>refermer rapidement la ruche pour \u00e9viter la perte chaleur<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Les bons gestes<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Porter des protections lors de la pr\u00e9paration de la solution et durant toute sa manipulation au rucher.<\/li>\n\n\n\n<li>Dans l&rsquo;id\u00e9al, soyez 2 \u00e0 intervenir, la premi\u00e8re personne ouvre la ruche et enfume pendant que la seconde manipule la seringue. L&rsquo;intervention n&rsquo;en sera que plus rapide et pr\u00e9cise.<\/li>\n\n\n\n<li>\u00c9viter les jours de pluie et de vent fort.<\/li>\n\n\n\n<li>Ne pas jeter dans la nature le reliquat d&rsquo;acide<\/li>\n<\/ul>\n\n\n\n<blockquote class=\"wp-block-quote is-style-default has-text-color has-link-color wp-elements-94ad4428540b3de9a6d828fcb3aa8b7e is-layout-flow wp-block-quote-is-layout-flow\" style=\"color:#cd9b05\">\n<p><em>La premi\u00e8re fois, j\u2019ai stress\u00e9 \u00e0 l\u2019id\u00e9e d\u2019ouvrir les ruches en hiver. Mais en respectant les conditions m\u00e9t\u00e9o et en \u00e9tant rapide, tout s\u2019est bien pass\u00e9. Mes colonies ont d\u00e9marr\u00e9 le printemps en bien meilleure forme !<\/em><\/p>\n<\/blockquote>\n\n\n<ul class=\"wp-block-categories-list wp-block-categories\">\t<li class=\"cat-item cat-item-3\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=3\">d\u00e9couverte de l&#039;apiculture<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-5\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=5\">Les bases de l\u2019apiculture<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-9\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=9\">Les saisons de l\u2019apiculture<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-4\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=4\">Pourquoi se lancer dans l&#039;apiculture de loisir?<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-7\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=7\">Pratiques et techniques apicoles<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-16\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=16\">R\u00e9cits de visites ou d\u2019interventions au rucher<\/a>\n<\/li>\n\t<li class=\"cat-item cat-item-15\"><a href=\"https:\/\/lerucherdesfavorites.fr\/?cat=15\">Vie du rucher et exp\u00e9riences personnelles<\/a>\n<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Pourquoi traiter contre le varroa en hiver? Le Varroa destructor est un parasite redoutable pour nos abeilles. En hiver, alors que la colonie est affaiblie et regroup\u00e9e en grappe, ce parasite prolif\u00e8re et affaiblit encore plus les abeilles. Un traitement \u00e0 l\u2019acide oxalique par \u00e9gouttement est efficace, simple et peu co\u00fbteux pour r\u00e9duire la population [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":22,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[9,7],"tags":[],"class_list":["post-21","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-calendrier-saisons-apiculture","category-pratique-technique-apicole"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ? - Le Rucher des Favorites<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/lerucherdesfavorites.fr\/?p=21\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ? - Le Rucher des Favorites\" \/>\n<meta property=\"og:description\" content=\"Pourquoi traiter contre le varroa en hiver? Le Varroa destructor est un parasite redoutable pour nos abeilles. En hiver, alors que la colonie est affaiblie et regroup\u00e9e en grappe, ce parasite prolif\u00e8re et affaiblit encore plus les abeilles. Un traitement \u00e0 l\u2019acide oxalique par \u00e9gouttement est efficace, simple et peu co\u00fbteux pour r\u00e9duire la population [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/lerucherdesfavorites.fr\/?p=21\" \/>\n<meta property=\"og:site_name\" content=\"Le Rucher des Favorites\" \/>\n<meta property=\"article:published_time\" content=\"2025-12-29T15:23:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-01T11:40:55+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/lerucherdesfavorites.fr\/wp-content\/uploads\/2025\/12\/Varroa_Destructor.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"800\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"api53\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"api53\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"3 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/lerucherdesfavorites.fr\/?p=21#article\",\"isPartOf\":{\"@id\":\"https:\/\/lerucherdesfavorites.fr\/?p=21\"},\"author\":{\"name\":\"api53\",\"@id\":\"https:\/\/lerucherdesfavorites.fr\/#\/schema\/person\/7db6e451ffbd36b5d54ee54090b2c0e3\"},\"headline\":\"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ?\",\"datePublished\":\"2025-12-29T15:23:47+00:00\",\"dateModified\":\"2026-01-01T11:40:55+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/lerucherdesfavorites.fr\/?p=21\"},\"wordCount\":439,\"publisher\":{\"@id\":\"https:\/\/lerucherdesfavorites.fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/lerucherdesfavorites.fr\/?p=21#primaryimage\"},\"thumbnailUrl\":\"https:\/\/lerucherdesfavorites.fr\/wp-content\/uploads\/2025\/12\/Varroa_Destructor.jpg\",\"articleSection\":[\"Les saisons de l\u2019apiculture\",\"Pratiques et techniques apicoles\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/lerucherdesfavorites.fr\/?p=21\",\"url\":\"https:\/\/lerucherdesfavorites.fr\/?p=21\",\"name\":\"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ? 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Un traitement \u00e0 l\u2019acide oxalique par \u00e9gouttement est efficace, simple et peu co\u00fbteux pour r\u00e9duire la population [&hellip;]","og_url":"https:\/\/lerucherdesfavorites.fr\/?p=21","og_site_name":"Le Rucher des Favorites","article_published_time":"2025-12-29T15:23:47+00:00","article_modified_time":"2026-01-01T11:40:55+00:00","og_image":[{"width":1200,"height":800,"url":"https:\/\/lerucherdesfavorites.fr\/wp-content\/uploads\/2025\/12\/Varroa_Destructor.jpg","type":"image\/jpeg"}],"author":"api53","twitter_card":"summary_large_image","twitter_misc":{"\u00c9crit par":"api53","Dur\u00e9e de lecture estim\u00e9e":"3 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/lerucherdesfavorites.fr\/?p=21#article","isPartOf":{"@id":"https:\/\/lerucherdesfavorites.fr\/?p=21"},"author":{"name":"api53","@id":"https:\/\/lerucherdesfavorites.fr\/#\/schema\/person\/7db6e451ffbd36b5d54ee54090b2c0e3"},"headline":"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ?","datePublished":"2025-12-29T15:23:47+00:00","dateModified":"2026-01-01T11:40:55+00:00","mainEntityOfPage":{"@id":"https:\/\/lerucherdesfavorites.fr\/?p=21"},"wordCount":439,"publisher":{"@id":"https:\/\/lerucherdesfavorites.fr\/#organization"},"image":{"@id":"https:\/\/lerucherdesfavorites.fr\/?p=21#primaryimage"},"thumbnailUrl":"https:\/\/lerucherdesfavorites.fr\/wp-content\/uploads\/2025\/12\/Varroa_Destructor.jpg","articleSection":["Les saisons de l\u2019apiculture","Pratiques et techniques apicoles"],"inLanguage":"fr-FR"},{"@type":"WebPage","@id":"https:\/\/lerucherdesfavorites.fr\/?p=21","url":"https:\/\/lerucherdesfavorites.fr\/?p=21","name":"Traitement varroa : pourquoi et comment utiliser l\u2019acide oxalique en \u00e9gouttement ? 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