{"id":4162,"date":"2024-08-22T19:27:24","date_gmt":"2024-08-22T19:27:24","guid":{"rendered":"https:\/\/parrishandheimbecker-ag.com\/fungicides\/"},"modified":"2026-01-29T13:16:59","modified_gmt":"2026-01-29T13:16:59","slug":"fungicides","status":"publish","type":"page","link":"https:\/\/parrishandheimbecker-ag.com\/fr\/crop-inputs\/crop-protection\/fungicides\/","title":{"rendered":"Fongicides"},"content":{"rendered":"\n<section class=\"hero image\" style=\"background: url(https:\/\/parrishandheimbecker-ag.com\/wp-content\/uploads\/2024\/08\/CropProtection1.jpg) no-repeat center\/cover;\">\n                <div class=\"overlay\"><\/div>\n    \n    <div class=\"container\">\n         <span class=\"headline\">FONGICIDES<\/span>\n                             <\/div>\n    <\/section>\n\n\n\n<section class=\"breadcrumb-block\" style=\"background-color: #ffffff;\">\n    <div class=\"container\">\n        <p id=\"breadcrumbs\"><span><span><a href=\"https:\/\/parrishandheimbecker-ag.com\/fr\/\">Home<\/a><\/span><\/span><\/p>    <\/div>\n<\/section>\n\n\n\n<section class=\"general white top\">\n    <div class=\"container\">\n\n                <div class=\"column\">\n                <div class=\"module text\"><h1>FACTEURS, STRAT\u00c9GIES ET CALENDRIER POUR PROT\u00c9GER VOS CULTURES<\/h1>\n<p>Fongicides | P&amp;H &#8211; Le fusarium et d&#039;autres maladies peuvent menacer la sant\u00e9 de vos cultures et mettre en p\u00e9ril votre potentiel de profit maximal. Avec une bonne compr\u00e9hension et une bonne connaissance du probl\u00e8me, vous pouvez riposter et garder le risque sous contr\u00f4le. Le d\u00e9veloppement des maladies dans les grandes cultures d\u00e9pend de trois facteurs importants :<\/p>\n<ol>\n<li>Pour qu\u2019une infection se produise, il faut qu\u2019un h\u00f4te viable (la culture) soit disponible pour le pathog\u00e8ne.<\/li>\n<li>L\u2019agent pathog\u00e8ne de la maladie doit \u00eatre introduit dans l\u2019environnement. Les champignons et les spores bact\u00e9riennes peuvent \u00eatre emport\u00e9s par le vent ou survivre dans les r\u00e9sidus de culture ou dans le sol. Les virus peuvent \u00e9galement \u00eatre transmis par un vecteur vivant. Un exemple de ce ph\u00e9nom\u00e8ne est la jaunisse de l\u2019aster dans le <a href=\"https:\/\/parrishandheimbecker-ag.com\/fr\/crop-inputs\/seed\/seed-treatments\/\">canola<\/a>, qui est propag\u00e9e par les cicadelles de l\u2019aster.<\/li>\n<li>L\u2019environnement doit \u00eatre propice au d\u00e9veloppement de la maladie sp\u00e9cifique. Chaque agent pathog\u00e8ne a une temp\u00e9rature et un niveau d\u2019humidit\u00e9 optimaux n\u00e9cessaires au d\u00e9veloppement rapide de la maladie des cultures. Malheureusement, les m\u00eames niveaux d\u2019humidit\u00e9 n\u00e9cessaires aux cultures \u00e0 haut rendement peuvent \u00e9galement augmenter la pression de certaines maladies.<\/li>\n<\/ol>\n<h2>Comprendre la menace<\/h2>\n<p>Une fois qu\u2019un agent pathog\u00e8ne infecte la culture, il prive les plantes de nutriments et d\u2019\u00e9nergie, ce qui r\u00e9duit leur capacit\u00e9 photosynth\u00e9tique. Cela peut r\u00e9duire le rendement et d\u00e9grader la qualit\u00e9 des grains. L&#039;association canadienne des minoteries de farine de bl\u00e9 estime que les pertes annuelles de b\u00e9n\u00e9fices caus\u00e9es par le Fusarium entra\u00eenent souvent des pertes de plus d&#039;un milliard de dollars dans l&#039;Ouest canadien. Les fongicides peuvent offrir une protection efficace contre les maladies des cultures et augmenter le rendement, la qualit\u00e9 des grains et la rentabilit\u00e9.<\/p>\n<h2>Le bon moment<\/h2>\n<p>Le moment de l\u2019application d\u2019un fongicide pour lutter contre une maladie est crucial lorsqu\u2019il est utilis\u00e9 \u00e0 titre pr\u00e9ventif. Il est important de savoir quand inspecter les champs pour identifier les maladies pr\u00e9sentes et le stade de la culture le plus propice \u00e0 l\u2019application de fongicides.<\/p>\n<h2>P\u00e9riodes d&#039;application des fongicides courantes dans l&#039;Ouest canadien<\/h2>\n<p><strong>Canola<\/strong> : 20 \u00e0 50 % du stade de floraison.<\/p>\n<p><strong><a href=\"https:\/\/parrishandheimbecker-ag.com\/fr\/crop-inputs\/seed\/seed-treatments\/\">L\u00e9gumineuses<\/a><\/strong> : Avant le d\u00e9veloppement de la maladie jusqu&#039;au d\u00e9but de la floraison.<\/p>\n<p><strong>Maladies foliaires des c\u00e9r\u00e9ales<\/strong> : apr\u00e8s l&#039;\u00e9mergence de la feuille \u00e9tendard. L\u2019utilisation d\u2019un fongicide \u00e0 ce stade vise \u00e0 maintenir la feuille drapeau exempte de maladie pour un rendement maximal. Chez le bl\u00e9, l\u2019avoine et le seigle, la feuille \u00e9tendard contribue \u00e0 plus de 50 % du rendement. Chez l\u2019orge, la feuille \u00e9tendard et l\u2019avant-derni\u00e8re feuille contribuent \u00e0 plus de 50 % du rendement.<\/p>\n<p><strong>Moment de la fusariose de l&#039;\u00e9pi dans le bl\u00e9<\/strong> : lorsque 75 % des \u00e9pis de bl\u00e9 sont d\u00e9j\u00e0 apparus et que 50 % des \u00e9pis sur la tige principale sont en fleurs. Consultez les \u00e9tiquettes pour conna\u00eetre les p\u00e9riodes de culture, la liste des maladies et les taux.<\/p>\n<h2>Avis d&#039;experts<\/h2>\n<p>Il est difficile d\u2019utiliser <a href=\"https:\/\/parrishandheimbecker-ag.com\/fr\/crop-scouting\/\">le d\u00e9pistage sur le terrain pour identifier les maladies<\/a> et s\u00e9lectionner le moment optimal d\u2019application du fongicide, car les sympt\u00f4mes de la maladie peuvent \u00eatre difficiles \u00e0 distinguer des autres stress.<\/p>\n<p>Les agronomes de P&amp;H peuvent comprendre les pressions exerc\u00e9es par les maladies dans votre r\u00e9gion et vous aider \u00e0 identifier les maladies des cultures et le moment de l\u2019application des fongicides. Appelez votre magasin P&amp;H local d\u00e8s aujourd\u2019hui pour plus d\u2019informations.<\/p>\n<p>Pour consulter les r\u00e9sultats des essais de d\u00e9monstration de fongicides Bayer dans votre r\u00e9gion, cliquez <a href=\"https:\/\/www.cropscience.bayer.ca\/grower-tools\/fungicide-tools\/fungicide-dst-map\" target=\"_blank\" rel=\"noopener\">ici<\/a>.<\/p>\n<\/div>            <\/div>\n            <\/div>\n<\/section>\n\n<section class=\"cta white\">\n    <div class=\"container\">\n        <div class=\"left noimage\">\n            <h2 style=\"text-align: center\">Prot\u00e9gez vos rendements<\/h2>\n\n                            <div class=\"buttons\">\n                                            <a class=\"button primary\" href=\"https:\/\/parrishandheimbecker-ag.com\/fr\/find-a-location\/\" target=\"\"><span>Contactez votre agronome P&amp;H Agrologist<\/span><\/a>\n                                                        <\/div>\n                    <\/div>\n            <\/div>\n<\/section>","protected":false},"excerpt":{"rendered":"","protected":false},"author":2,"featured_media":0,"parent":4277,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":true,"_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":"2772,2439,2762,2382,343,2745","_relevanssi_noindex_reason":"","footnotes":""},"class_list":["post-4162","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.2 (Yoast SEO v27.4) - 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