{"id":3577,"date":"2015-07-21T10:52:14","date_gmt":"2015-07-21T10:52:14","guid":{"rendered":"http:\/\/kbivb.mailbox-belgium.com\/fr\/?p=3577"},"modified":"2015-12-02T16:34:34","modified_gmt":"2015-12-02T15:34:34","slug":"repousses-de-colza-danger","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/repousses-de-colza-danger\/","title":{"rendered":"Repousses de colza = DANGER"},"content":{"rendered":"<p><a href=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1.png\"><img loading=\"lazy\" decoding=\"async\" class=\"rounded alignleft wp-image-4592 size-medium\" src=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1-300x211.png\" alt=\"koolzaadopslag\" width=\"300\" height=\"211\" srcset=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1-300x211.png 300w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1.png 1024w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1-150x105.png 150w, https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2015\/07\/koolzaadopslag1-810x570.png 810w\" sizes=\"auto, (max-width: 300px) 100vw, 300px\" \/><\/a><strong>Repousses de colza sur terre \u00e0 betteraves : \u00e9liminer end\u00e9ans les 3 semaines apr\u00e8s germination.<\/strong><br \/>\nComme la betterave, le colza est une plante h\u00f4te du n\u00e9matode \u00e0 kyste de la betterave (<em>Heterodera schachtii<\/em>). Il multiplie ce n\u00e9matode autant qu&rsquo;une culture de betterave. La p\u00e9riode o\u00f9 la culture du colza ou les repousses de colza multiplient le plus le n\u00e9matode \u00e0 kyste de la betterave correspond au stade juv\u00e9nile de la plante, soit du semis jusqu&rsquo;\u00e0 l&rsquo;hiver. La diff\u00e9rence \u00e0 ce moment est qu&rsquo;il peut y avoir des zones dans le champ de colza r\u00e9colt\u00e9 o\u00f9 plus de 5.000 graines\/m\u00b2 peuvent \u00eatre observ\u00e9es. Ces zones ont un \u00e9norme pouvoir de multiplication du n\u00e9matode de la betterave. L&rsquo;\u00e9limination de ces repousses est donc essentielle lorsqu&rsquo;une culture de betterave est implant\u00e9e dans la rotation. Il faut intervenir avant que le n\u00e9matode n&rsquo;ait eu l&rsquo;occasion d&rsquo;effectuer son premier cycle de multiplication, en d\u00e9truisant toutes les repousses de colza dans un d\u00e9lai de 3 semaines (maximum 4) apr\u00e8s la germination des graines.<br \/>\nLa destruction peut \u00eatre de pr\u00e9f\u00e9rence m\u00e9canique (travail superficiel du sol) ou chimique (herbicide total). Cette destruction sera r\u00e9p\u00e9t\u00e9e si n\u00e9cessaire.<br \/>\nPour limiter le stock de graines de colza non germ\u00e9es, \u00e9vitez un travail du sol profond apr\u00e8s cette culture, mais pr\u00e9f\u00e9rez un d\u00e9chaumage superficiel (3-5 cm) pour faire germer un maximum de graines (rouler la terre \u00e9ventuellement).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Repousses de colza sur terre \u00e0 betteraves : \u00e9liminer end\u00e9ans les 3 semaines apr\u00e8s germination. Comme la betterave, le colza est une plante h\u00f4te du n\u00e9matode \u00e0 kyste de la betterave (Heterodera schachtii). Il multiplie ce n\u00e9matode autant qu&rsquo;une culture de betterave. La p\u00e9riode o\u00f9 la culture du colza ou les repousses de colza multiplient [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":4592,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":12,"footnotes":""},"categories":[208],"tags":[243],"class_list":["post-3577","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-nematodes","tag-messages"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Repousses de colza = DANGER - IRBAB-KBIVB<\/title>\n<meta name=\"description\" content=\"Repousses de colza sur terre \u00e0 betteraves : \u00e9liminer end\u00e9ans les 3 semaines apr\u00e8s germination.\" \/>\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\/repousses-de-colza-danger\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Repousses de colza = DANGER - 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