{"id":44205,"date":"2024-10-23T16:41:14","date_gmt":"2024-10-23T14:41:14","guid":{"rendered":"https:\/\/foretnature.be\/?post_type=article-foret-nature&p=44205"},"modified":"2024-10-23T16:41:14","modified_gmt":"2024-10-23T14:41:14","slug":"la-chalarose-du-frene-premiers-foyers-en-wallonie","status":"publish","type":"article-foret-nature","link":"https:\/\/foretnature.be\/en\/article-foret-nature\/la-chalarose-du-frene-premiers-foyers-en-wallonie\/","title":{"rendered":"La chalarose du fr\u00eane : premiers foyers en Wallonie"},"content":{"rendered":"

Chalara fraxinea est un champignon qui s\u2019attaque au fr\u00eane, provoquant son d\u00e9p\u00e9rissement en quelques ann\u00e9es. L\u2019absence actuelle de moyens de lutte efficaces contre cet agent pathog\u00e8ne am\u00e8ne certains pays europ\u00e9ens, dans lesquels l\u2019agent pathog\u00e8ne s\u2019est d\u00e9j\u00e0 propag\u00e9, \u00e0 abandonner la plantation de fr\u00eane au profit d\u2019autres essences. En Wallonie, une campagne de d\u00e9tection annuelle de la maladie a \u00e9t\u00e9 mise en place depuis 2009. Alors qu\u2019en 2009, aucun signe de la maladie n\u2019\u00e9tait d\u00e9tect\u00e9, en 2010, les premiers sites infect\u00e9s ont pu \u00eatre rep\u00e9r\u00e9s. Des mesures d\u2019\u00e9radication ont \u00e9t\u00e9 entreprises afin de stopper la propagation de l\u2019agent pathog\u00e8ne mais sans succ\u00e8s. Les recommandations formul\u00e9es dans l\u2019article consistent : en p\u00e9pini\u00e8re : \u00e0 contr\u00f4ler r\u00e9guli\u00e8rement l\u2019absence de sympt\u00f4mes et \u00e0 \u00e9liminer les feuilles mortes tomb\u00e9es au sol \u00e0 partir du mois d\u2019ao\u00fbt ; pour de nouvelles plantations : \u00e0 limiter la plantation du fr\u00eane et \u00e0 favoriser le m\u00e9lange avec d\u2019autres essences ; pour les plantations en place : \u00e0 ne pas faire de coupe sanitaire syst\u00e9matique en cas de contamination, afin, d\u2019une part, de favoriser l\u2019\u00e9mergence d\u2019individus r\u00e9sistants parmi les fr\u00eanes et, d\u2019autre part, d\u2019\u00e9viter la propagation de l\u2019agent pathog\u00e8ne par l\u2019interm\u00e9diaire de l\u2019exploitation et du transport des bois. L\u2019exploitation pr\u00e9coce se limitera aux individus souffrant d\u2019un d\u00e9ficit foliaire sup\u00e9rieur \u00e0 50 % et le martelage se fera sur la p\u00e9riode d\u2019ao\u00fbt-septembre afin de pouvoir appr\u00e9cier l\u2019\u00e9tendue de la d\u00e9foliation ; \u00e0 contacter le CRA-W ou l\u2019Observatoire wallon de la sant\u00e9 des for\u00eats en cas de soup\u00e7on de contamination.<\/p>","protected":false},"excerpt":{"rendered":"

Chalara fraxinea est un champignon qui s\u2019attaque au fr\u00eane, provoquant son d\u00e9p\u00e9rissement en quelques ann\u00e9es. L\u2019absence actuelle de moyens de lutte efficaces contre cet agent pathog\u00e8ne am\u00e8ne certains pays europ\u00e9ens, dans lesquels l\u2019agent pathog\u00e8ne s\u2019est d\u00e9j\u00e0 propag\u00e9, \u00e0 abandonner la plantation de fr\u00eane au profit d\u2019autres essences. En Wallonie, une campagne de d\u00e9tection annuelle de […]<\/p>","protected":false},"featured_media":0,"template":"","categories":[49],"acf":[],"yoast_head":"\nLa chalarose du fr\u00eane : premiers foyers en Wallonie - For\u00eat.Nature<\/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:\/\/foretnature.be\/en\/article-foret-nature\/la-chalarose-du-frene-premiers-foyers-en-wallonie\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"La chalarose du fr\u00eane : premiers foyers en Wallonie - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Chalara fraxinea est un champignon qui s\u2019attaque au fr\u00eane, provoquant son d\u00e9p\u00e9rissement en quelques ann\u00e9es. L\u2019absence actuelle de moyens de lutte efficaces contre cet agent pathog\u00e8ne am\u00e8ne certains pays europ\u00e9ens, dans lesquels l\u2019agent pathog\u00e8ne s\u2019est d\u00e9j\u00e0 propag\u00e9, \u00e0 abandonner la plantation de fr\u00eane au profit d\u2019autres essences. 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