{"id":13865,"date":"2019-04-17T14:12:18","date_gmt":"2019-04-17T12:12:18","guid":{"rendered":"https:\/\/www.irbab-kbivb.be\/?p=13865"},"modified":"2019-04-17T14:20:01","modified_gmt":"2019-04-17T12:20:01","slug":"desherbage-premier-traitement-far-en-betteraves","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/desherbage-premier-traitement-far-en-betteraves\/","title":{"rendered":"Premier traitement FAR en betteraves"},"content":{"rendered":"

\"\"<\/a>Pour les agriculteurs qui ont sem\u00e9 au cours des deux derni\u00e8res semaines et qui ont une lev\u00e9e de 80 \u00e0 100%, on s’attend \u00e0 ce qu’au cours de cette semaine, ce soit le moment appropri\u00e9 pour r\u00e9aliser le premier traitement FAR. Il doit \u00eatre appliqu\u00e9 sur les adventices au stade cotyl\u00e9don, qui est le plus rentable en termes d’efficacit\u00e9 et de co\u00fbt. Cette semaine, des temp\u00e9ratures plus \u00e9lev\u00e9es sont pr\u00e9vues et donc des conditions poussantes qui favoriseront la lev\u00e9e de nouvelles adventices. Contr\u00f4lez la lev\u00e9e et l’\u00e9tat des betteraves de vos parcelles ainsi que les adventices \u00e0 v\u00e9rifier. Pour plus d’informations, veuillez-vous r\u00e9f\u00e9rer au FAR memo 2019<\/a>.<\/p>\n

S’il n’y a pas de d\u00e9g\u00e2ts d’insectes, il est \u00e9galement inutile et m\u00eame contre-productif d’appliquer un insecticide lors du premier traitement FAR. Si des d\u00e9g\u00e2ts d’insectes sont observ\u00e9s, il peut \u00eatre n\u00e9cessaire d’appliquer d’abord un insecticide, puis d’attendre id\u00e9alement 48 heures avant de proc\u00e9der au traitement FAR. Pour plus d’informations sur la lutte contre les insectes, voir le message \u00ab N\u2019effectuez aucun traitement insecticide pr\u00e9ventif avec une pyr\u00e9thrino\u00efde en betterave\u00bb.<\/p>\n

Si le (premier) traitement FAR a \u00e9t\u00e9 report\u00e9 en raison des journ\u00e9es froides avec du gel nocturne, il faut v\u00e9rifier si les doses des composants FAR doivent \u00eatre ajust\u00e9es en fonction du stade des adventices. On peut aussi s’attendre \u00e0 ce que les premi\u00e8res adventices soient assez fortement endurcies \u00e0 cause des conditions climatiques froides et piquantes, tenez-en compte lors de la composition du m\u00e9lange FAR et donnez la pr\u00e9f\u00e9rence aux substances absorb\u00e9es par la feuille et ajustez la dose d’huile en fonction des conditions m\u00e9t\u00e9orologiques du jour du traitement. L’application d’un traitement FAR si les betteraves ne sont pas encore toutes lev\u00e9es ne pose pas de probl\u00e8me. Pour une flore classique (ch\u00e9nopode blanc, camomille,…), le traitement suivant peut alors \u00eatre recommand\u00e9 : type ‘Betanal 160 g\/l’ (0,6 l\/ha) + type ‘Tramat 500 g\/l’ (0,2 l\/ha) + type ‘Goltix 700 g\/l’ (0,5 l\/ha) + huile (0,5 \u00e0 1,0 l\/ha). Ce traitement est toujours s\u00e9lectif par rapport \u00e0 la betterave. \u00a0Si vous avez de la petite cigu\u00eb ou de la grande cigu\u00eb dans vos champs, Safari peut \u00eatre utilis\u00e9 \u00e0 15g. Cependant, Safari peut emp\u00eacher la croissance de la betterave et n’est donc recommand\u00e9 que si au moins 70% des betteraves sont lev\u00e9es. Matrigon est moins efficace par temps froid et ne peut \u00eatre utilis\u00e9 qu’\u00e0 partir du stade de la deuxi\u00e8me feuille de la betterave.<\/p>\n","protected":false},"excerpt":{"rendered":"

Pour les agriculteurs qui ont sem\u00e9 au cours des deux derni\u00e8res semaines et qui ont une lev\u00e9e de 80 \u00e0 100%, on s’attend \u00e0 ce qu’au cours de cette semaine, ce soit le moment appropri\u00e9 pour r\u00e9aliser le premier traitement FAR. Il doit \u00eatre appliqu\u00e9 sur les adventices au stade cotyl\u00e9don, qui est le plus […]<\/p>\n","protected":false},"author":3,"featured_media":13863,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":12,"footnotes":""},"categories":[209,2],"tags":[243],"class_list":["post-13865","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-adventices","category-betterave","tag-messages"],"yoast_head":"\nPremier traitement FAR en betteraves - 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\/desherbage-premier-traitement-far-en-betteraves\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Premier traitement FAR en betteraves - IRBAB-KBIVB\" \/>\n<meta property=\"og:description\" content=\"Pour les agriculteurs qui ont sem\u00e9 au cours des deux derni\u00e8res semaines et qui ont une lev\u00e9e de 80 \u00e0 100%, on s’attend \u00e0 ce qu’au cours de cette semaine, ce soit le moment appropri\u00e9 pour r\u00e9aliser le premier traitement FAR. 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