{"id":3595,"date":"2015-07-28T12:07:20","date_gmt":"2015-07-28T12:07:20","guid":{"rendered":"http:\/\/kbivb.mailbox-belgium.com\/fr\/?p=3595"},"modified":"2015-12-02T16:16:59","modified_gmt":"2015-12-02T15:16:59","slug":"symptomes-de-mildiou","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/symptomes-de-mildiou\/","title":{"rendered":"Sympt\u00f4mes de mildiou"},"content":{"rendered":"<p><a href=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"rounded alignleft wp-image-4574 size-medium\" src=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1-300x211.png\" alt=\"valsemeeldauw\" width=\"300\" height=\"211\" srcset=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1-300x211.png 300w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1.png 1024w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1-150x105.png 150w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1-810x570.png 810w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a>Comme en 2014, des sympt\u00f4mes d&rsquo;attaques importantes de mildiou (Peronospora farinosa) ont \u00e9t\u00e9 r\u00e9cemment observ\u00e9s par l&rsquo;IRBAB, mais dans quelques champs seulement. Comme en 2014, ces sympt\u00f4mes se pr\u00e9sentent sur des plantes isol\u00e9es ou sur un plus grand nombre de plantes diss\u00e9min\u00e9es parmi des surfaces plus ou moins circulaires, parfois assez grandes (quelques m\u00e8tres de diam\u00e8tres). Ces attaques de mildiou sont tr\u00e8s typiques. Les feuilles du coeur de certaines plantes sont parfois compl\u00e8tement rabougries, noir\u00e2tres voire d\u00e9truites. Ce sympt\u00f4me seul pourrait faire penser \u00e0 une carence en bore. Des petites feuilles du coeur peuvent encore pr\u00e9senter un duvet noir\u00e2tre typique (d\u00e9veloppement de la moisissure \u00e0 la surface de ces feuilles). La plupart des plus anciennes feuilles commencent \u00e0 jaunir ou \u00e0 \u00eatre dess\u00e9ch\u00e9es. De loin, ce sympt\u00f4me pourrait \u00eatre confondu avec celui de la jaunisse virale.<br \/>\n\u00c0 ce stade, aucune intervention fongicide n&rsquo;est efficace, ni recommand\u00e9e, d&rsquo;autant qu&rsquo;il n&rsquo;y a pas de fongicides agr\u00e9\u00e9s en pulv\u00e9risation foliaire contre le mildiou en betterave.<br \/>\nL&rsquo;IRBAB s&rsquo;int\u00e9resse \u00e0 identifier et \u00e0 documenter ce probl\u00e8me. Les personnes qui observeraient ce genre de sympt\u00f4mes dans un de leurs champs sont invit\u00e9es \u00e0 prendre contact au plus t\u00f4t avec l&rsquo;IRBAB, par mail (<a href=\"mailto:info@irbab.be\">info@irbab.be<\/a>), en communiquant leurs coordonn\u00e9es (nom, adresse, num\u00e9ro de GSM).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Comme en 2014, des sympt\u00f4mes d&rsquo;attaques importantes de mildiou (Peronospora farinosa) ont \u00e9t\u00e9 r\u00e9cemment observ\u00e9s par l&rsquo;IRBAB, mais dans quelques champs seulement. Comme en 2014, ces sympt\u00f4mes se pr\u00e9sentent sur des plantes isol\u00e9es ou sur un plus grand nombre de plantes diss\u00e9min\u00e9es parmi des surfaces plus ou moins circulaires, parfois assez grandes (quelques m\u00e8tres de [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4574,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":7,"footnotes":""},"categories":[221],"tags":[243],"class_list":["post-3595","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maladies-foliaires","tag-messages"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Sympt\u00f4mes de mildiou - IRBAB-KBIVB<\/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:\/\/www.irbab-kbivb.be\/fr\/symptomes-de-mildiou\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Sympt\u00f4mes de mildiou - IRBAB-KBIVB\" \/>\n<meta property=\"og:description\" content=\"Comme en 2014, des sympt\u00f4mes d&rsquo;attaques importantes de mildiou (Peronospora farinosa) ont \u00e9t\u00e9 r\u00e9cemment observ\u00e9s par l&rsquo;IRBAB, mais dans quelques champs seulement. Comme en 2014, ces sympt\u00f4mes se pr\u00e9sentent sur des plantes isol\u00e9es ou sur un plus grand nombre de plantes diss\u00e9min\u00e9es parmi des surfaces plus ou moins circulaires, parfois assez grandes (quelques m\u00e8tres de [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.irbab-kbivb.be\/fr\/symptomes-de-mildiou\/\" \/>\n<meta property=\"og:site_name\" content=\"IRBAB-KBIVB\" \/>\n<meta property=\"article:published_time\" content=\"2015-07-28T12:07:20+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2015-12-02T15:16:59+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/valsemeeldauw1.png\" \/>\n\t<meta property=\"og:image:width\" content=\"1024\" \/>\n\t<meta property=\"og:image:height\" content=\"720\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/png\" \/>\n<meta name=\"author\" content=\"Marion\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"\u00c9crit par\" \/>\n\t<meta name=\"twitter:data1\" content=\"Marion\" \/>\n\t<meta name=\"twitter:label2\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/\"},\"author\":{\"name\":\"Marion\",\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/#\\\/schema\\\/person\\\/dad6fe34d3ac93cce3720797f132a2e5\"},\"headline\":\"Sympt\u00f4mes de mildiou\",\"datePublished\":\"2015-07-28T12:07:20+00:00\",\"dateModified\":\"2015-12-02T15:16:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/\"},\"wordCount\":251,\"image\":{\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/wp-content\\\/uploads\\\/2015\\\/07\\\/valsemeeldauw1.png\",\"keywords\":[\"Messages\"],\"articleSection\":[\"Maladies foliaires\"],\"inLanguage\":\"fr-FR\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/\",\"url\":\"https:\\\/\\\/www.irbab-kbivb.be\\\/fr\\\/symptomes-de-mildiou\\\/\",\"name\":\"Sympt\u00f4mes de mildiou - 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