{"id":33287,"date":"2021-07-02T10:55:21","date_gmt":"2021-07-02T08:55:21","guid":{"rendered":"https:\/\/gjkkadksm.preview.infomaniak.website\/?post_type=resume-foret-mail&#038;p=33287"},"modified":"2021-07-02T10:55:21","modified_gmt":"2021-07-02T08:55:21","slug":"foret-melangee-une-solution-efficace-contre-les-insectes-ravageurs","status":"publish","type":"resume-foret-mail","link":"https:\/\/foretnature.be\/en\/resume-foret-mail\/foret-melangee-une-solution-efficace-contre-les-insectes-ravageurs\/","title":{"rendered":"For\u00eat m\u00e9lang\u00e9e : une solution efficace contre les insectes ravageurs ?"},"content":{"rendered":"<p class=\"text-build-content\" data-testid=\"m9LC61rhw4\">Les attaques d\u2019insectes ravageurs en for\u00eat se font de plus en plus fr\u00e9quentes. Face \u00e0 cette situation, le m\u00e9lange d\u2019essences repr\u00e9sente une solution sylvicole efficace, comme le montre une m\u00e9ta-analyse (comparant plus de 600 \u00e9tudes r\u00e9alis\u00e9es entre 1966 et 2019) men\u00e9e par des chercheurs de l\u2019INRAE (France) et de la Mission Biologique de Galice (Espagne). Les r\u00e9sultats confirment que les for\u00eats m\u00e9lang\u00e9es sont plus r\u00e9sistantes aux attaques de la majorit\u00e9 des insectes herbivores par rapport \u00e0 des for\u00eats g\u00e9r\u00e9es en monoculture, avec une moyenne de 20 % de d\u00e9g\u00e2ts en moins.<\/p>\n<p class=\"text-build-content\" data-testid=\"m9LC61rhw4\">Cette meilleure r\u00e9sistance s\u2019explique par deux facteurs principaux. D\u2019une part, les insectes sp\u00e9cialistes d\u2019une essence sont perturb\u00e9s par les signaux olfactifs et visuels des autres essences et parviennent moins facilement \u00e0 trouver l\u2019essence qu\u2019ils recherchent. D\u2019autre part, les for\u00eats m\u00e9lang\u00e9es favorisent l\u2019installation des pr\u00e9dateurs naturels qui contr\u00f4lent les populations de ravageurs.<\/p>\n<p class=\"text-build-content\" data-testid=\"m9LC61rhw4\">Les chercheurs soulignent \u00e9galement que ce n\u2019est pas tant le nombre d\u2019essences diff\u00e9rentes que le choix des essences qui importe pour la protection et conseillent de privil\u00e9gier des essences diff\u00e9rentes d\u2019un point de vue fonctionnel. Cette m\u00e9ta-analyse conclut qu\u2019il convient d\u2019\u00e9viter les monocultures et de bien choisir les esp\u00e8ces associ\u00e9es pour maximiser la r\u00e9sistance par association.<\/p>","protected":false},"excerpt":{"rendered":"<p>Les attaques d\u2019insectes ravageurs en for\u00eat se font de plus en plus fr\u00e9quentes. Face \u00e0 cette situation, le m\u00e9lange d\u2019essences repr\u00e9sente une solution sylvicole efficace, comme le montre une m\u00e9ta-analyse (comparant plus de 600 \u00e9tudes r\u00e9alis\u00e9es entre 1966 et 2019) men\u00e9e par des chercheurs de l\u2019INRAE (France) et de la Mission Biologique de Galice (Espagne). [&hellip;]<\/p>","protected":false},"featured_media":0,"template":"","categories":[50],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v23.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>For\u00eat m\u00e9lang\u00e9e : une solution efficace contre les insectes ravageurs ? - 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\/resume-foret-mail\/foret-melangee-une-solution-efficace-contre-les-insectes-ravageurs\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"For\u00eat m\u00e9lang\u00e9e : une solution efficace contre les insectes ravageurs ? - For\u00eat.Nature\" \/>\n<meta property=\"og:description\" content=\"Les attaques d\u2019insectes ravageurs en for\u00eat se font de plus en plus fr\u00e9quentes. Face \u00e0 cette situation, le m\u00e9lange d\u2019essences repr\u00e9sente une solution sylvicole efficace, comme le montre une m\u00e9ta-analyse (comparant plus de 600 \u00e9tudes r\u00e9alis\u00e9es entre 1966 et 2019) men\u00e9e par des chercheurs de l\u2019INRAE (France) et de la Mission Biologique de Galice (Espagne). 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