{"id":4154,"date":"2022-02-01T07:00:39","date_gmt":"2022-02-01T07:00:39","guid":{"rendered":"https:\/\/parrishandheimbecker-ag.com\/lock-your-doors-against-kochia-palmer-amaranth-water-hemp\/"},"modified":"2025-07-16T07:24:01","modified_gmt":"2025-07-16T07:24:01","slug":"lock-your-doors-against-kochia-palmer-amaranth-water-hemp","status":"publish","type":"post","link":"https:\/\/parrishandheimbecker-ag.com\/fr\/lock-your-doors-against-kochia-palmer-amaranth-water-hemp\/","title":{"rendered":"Verrouillez vos portes contre le kochia, l&rsquo;amarante de Palmer et le chanvre d&rsquo;eau"},"content":{"rendered":"<p><span data-contrast=\"auto\">Verrouillez vos portes. Trois mauvaises herbes r\u00e9sistantes \u00e0 plusieurs groupes d\u2019herbicides se propagent dans l\u2019Ouest canadien.<\/span><\/p>\n<p><span data-contrast=\"auto\">La r\u00e9sistance des mauvaises herbes n\u2019est pas nouvelle dans l\u2019Ouest canadien. Mais plus r\u00e9cemment, des mauvaises herbes r\u00e9sistantes \u00e0 plusieurs groupes apparaissent.<\/span><\/p>\n<p><span data-contrast=\"auto\">Au printemps 2021, dans l\u2019Ouest canadien, la folle avoine, le kochia \u00e0 balais et la s\u00e9taire verte se sont r\u00e9v\u00e9l\u00e9s g\u00e9n\u00e9ralement r\u00e9sistants \u00e0 plusieurs groupes d\u2019herbicides.<\/span><\/p>\n<p><!--more--><\/p>\n<p>\u00c7a empire. Certains biotypes de kochia sont \u00e9galement r\u00e9sistants au groupe 9 (glyphosate), au groupe 2 et au groupe 4. Cette r\u00e9sistance \u00e0 de multiples groupes augmente la complexit\u00e9 et le co\u00fbt de la gestion des mauvaises herbes r\u00e9sistantes.<\/p>\n<p>M\u00eame les mauvaises herbes les plus r\u00e9centes pr\u00e9sentent une r\u00e9sistance aux herbicides couramment utilis\u00e9s. L\u2019amarante de Palmer et l\u2019amarante rhizome sont relativement nouveaux dans l\u2019Ouest canadien et ont \u00e9t\u00e9 identifi\u00e9s au Manitoba. Ces deux mauvaises herbes, toutes deux de la famille des amarantes, ont une croissance agressive et sont des productrices de graines prolifiques. En fait, une plante d\u2019amarante palmer peut produire jusqu\u2019\u00e0 un million de graines.<\/p>\n<p>L&#039;amarante de Palmer est connue pour sa r\u00e9sistance aux herbicides des groupes 2, 3, 5, 9 et 27. Le chanvre d\u2019eau a montr\u00e9 une r\u00e9sistance aux groupes 2, 4, 5, 9, 14, 15 et 27. Les deux esp\u00e8ces de mauvaises herbes peuvent \u00eatre r\u00e9sistantes au glyphosate (Groupe 9) et certains biotypes pr\u00e9sentent une r\u00e9sistance multiple \u00e0 des modes d\u2019action sp\u00e9cifiques des herbicides.<\/p>\n<p>Bien que la pr\u00e9sence de ces deux mauvaises herbes soit actuellement confirm\u00e9e au Manitoba, les producteurs de la Saskatchewan et de l\u2019Alberta doivent \u00eatre pr\u00e9par\u00e9s. La menace est \u00e0 leur porte et ce n\u2019est qu\u2019une question de temps avant que ces deux mauvaises herbes r\u00e9sistantes \u00e0 plusieurs groupes d\u2019herbicides envahissent une plus grande partie de l\u2019Ouest canadien.<\/p>\n<p><a href=\"https:\/\/www.pandhcropinputs.com\/crop-inputs\/crop-protection\/managing-weed-resistance\/\"><span style=\"font-size: 14pt\"><strong>EN SAVOIR PLUS<\/strong><\/span><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Verrouillez vos portes. Trois mauvaises herbes r\u00e9sistantes \u00e0 plusieurs groupes d\u2019herbicides se propagent dans l\u2019Ouest&#8230;<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"_relevanssi_hide_post":"","_relevanssi_hide_content":"","_relevanssi_pin_for_all":"","_relevanssi_pin_keywords":"","_relevanssi_unpin_keywords":"","_relevanssi_related_keywords":"","_relevanssi_related_include_ids":"","_relevanssi_related_exclude_ids":"","_relevanssi_related_no_append":"","_relevanssi_related_not_related":"","_relevanssi_related_posts":"3753,2664,2176,2359,2439,2123","_relevanssi_noindex_reason":"","footnotes":""},"categories":[19],"tags":[21,22,23,24,25,26],"class_list":["post-4154","post","type-post","status-publish","format-standard","hentry","category-west","tag-green-foxtail","tag-herbicide","tag-kochia","tag-resistance","tag-weed","tag-wild-oats"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.2 (Yoast SEO v26.8) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Verrouillez vos portes contre le kochia, l&#039;amarante de Palmer et le chanvre d&#039;eau | P&amp;H Agriculture<\/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:\/\/parrishandheimbecker-ag.com\/fr\/lock-your-doors-against-kochia-palmer-amaranth-water-hemp\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Verrouillez vos portes contre le kochia, l&#039;amarante de Palmer et le chanvre d&#039;eau\" \/>\n<meta property=\"og:description\" content=\"Verrouillez vos portes. 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