{"id":3717,"date":"2015-09-01T08:15:13","date_gmt":"2015-09-01T08:15:13","guid":{"rendered":"http:\/\/kbivb.mailbox-belgium.com\/fr\/?p=3717"},"modified":"2015-12-02T15:23:21","modified_gmt":"2015-12-02T14:23:21","slug":"derniere-verification-pour-un-traitement-de-rappel","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/derniere-verification-pour-un-traitement-de-rappel\/","title":{"rendered":"Derni\u00e8re v\u00e9rification pour un traitement de rappel"},"content":{"rendered":"

\"herhalingsbehandeling\"<\/a>Il est essentiel de parcourir les champs, surtout ceux trait\u00e9s trop t\u00f4t et ceux sem\u00e9s avec des vari\u00e9t\u00e9s sensibles aux maladies foliaires (liste des sensibilit\u00e9s vari\u00e9tales<\/a>).
\nIl y a actuellement cinq champs d’observation de l’IRBAB o\u00f9 le seuil T2 pour le traitement de rappel contre l’o\u00efdium et\/ou la rouille a \u00e9t\u00e9 atteint.
\nLes champs arrach\u00e9s pr\u00e9cocement ne doivent plus \u00eatre trait\u00e9s.
\nUn traitement de rappel peut \u00eatre justifi\u00e9, surtout pour les champs arrach\u00e9s tardivement, lorsque le seuil de traitement T2 (seuil d\u00e9fini pour la p\u00e9riode apr\u00e8s le 20 ao\u00fbt) est atteint, c’est-\u00e0-dire lorsque :
\n– 20% des feuilles pr\u00e9sentent des sympt\u00f4mes de cercosporiose ou de ramulariose,
\n– 30% des feuilles pr\u00e9sentent des sympt\u00f4mes d’o\u00efdium,
\n– 40% des feuilles pr\u00e9sentent des sympt\u00f4mes de rouille.
\nLe choix du fongicide<\/a> sera r\u00e9alis\u00e9 en tenant compte de son d\u00e9lai d’application avant r\u00e9colte (DAR, celui-ci varie entre 21 et 45 jours) et du nombre d’applications autoris\u00e9es, sachant qu’il est conseill\u00e9 de changer de produit si un second traitement s’av\u00e8re n\u00e9cessaire. Les champs arrach\u00e9s avant la mi-octobre ne peuvent plus \u00eatre trait\u00e9s avec les produits dont le DAR est de 45 jours ou 42 jours.
\nEn cas de traitement, il est conseill\u00e9 d’appliquer le fongicide sur un feuillage sec et en condition fraiche (en dehors des heures les plus chaudes de la journ\u00e9e, par temps estival). Un d\u00e9lai de 1 \u00e0 2 heures de temps sec apr\u00e8s la pulv\u00e9risation est n\u00e9cessaire pour assurer une efficacit\u00e9 d’action optimale pour la majorit\u00e9 des produits.
\nUn traitement fongicide n’est plus financi\u00e8rement justifiable au-del\u00e0 du 10 septembre.
\nL’\u00e9volution des maladies foliaires peut \u00eatre suivie sur une illustration cartographique<\/a> disponible sur le site de l’IRBAB.<\/p>\n","protected":false},"excerpt":{"rendered":"

Il est essentiel de parcourir les champs, surtout ceux trait\u00e9s trop t\u00f4t et ceux sem\u00e9s avec des vari\u00e9t\u00e9s sensibles aux maladies foliaires (liste des sensibilit\u00e9s vari\u00e9tales). Il y a actuellement cinq champs d’observation de l’IRBAB o\u00f9 le seuil T2 pour le traitement de rappel contre l’o\u00efdium et\/ou la rouille a \u00e9t\u00e9 atteint. Les champs arrach\u00e9s […]<\/p>\n","protected":false},"author":3,"featured_media":4532,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":0,"footnotes":""},"categories":[221],"tags":[243],"class_list":["post-3717","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-maladies-foliaires","tag-messages"],"yoast_head":"\nDerni\u00e8re v\u00e9rification pour un traitement de rappel - IRBAB-KBIVB<\/title>\n<meta name=\"description\" content=\"Il est essentiel de parcourir les champs, surtout ceux trait\u00e9s trop t\u00f4t et ceux sem\u00e9s avec des vari\u00e9t\u00e9s sensibles aux maladies foliaires.\" \/>\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\/derniere-verification-pour-un-traitement-de-rappel\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Derni\u00e8re v\u00e9rification pour un traitement de rappel - 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