{"id":28267,"date":"2026-06-12T14:05:21","date_gmt":"2026-06-12T12:05:21","guid":{"rendered":"https:\/\/www.irbab-kbivb.be\/?p=28267"},"modified":"2026-06-12T14:05:29","modified_gmt":"2026-06-12T12:05:29","slug":"premiers-symptomes-de-jaunisse-observes","status":"publish","type":"post","link":"https:\/\/www.irbab-kbivb.be\/fr\/premiers-symptomes-de-jaunisse-observes\/","title":{"rendered":"Premiers sympt\u00f4mes de jaunisse observ\u00e9s."},"content":{"rendered":"\n<p><a href=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2026\/06\/vergeling-klein.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-28246\" src=\"https:\/\/www.irbab-kbivb.be\/wp-content\/uploads\/2026\/06\/vergeling-klein.jpg\" alt=\"\" width=\"800\" height=\"600\" \/><\/a><\/p>\n\n\n\n<p>Nous voulons attirer l\u2019attention sur les premiers sympt\u00f4mes de la jaunisse qui ont \u00e9t\u00e9 observ\u00e9s. Il s\u2019agit g\u00e9n\u00e9ralement de plantes isol\u00e9es ou de quelques plantes.<\/p>\n<p>La jaunisse se manifeste par une d\u00e9coloration jaune en mosa\u00efque sur le bord de la feuille, puis entre les nervures sur les feuilles matures. Les feuilles atteintes deviennent plus \u00e9paisses, moins souples et se cassent plus facilement lorsqu\u2019on les plie. Ces sympt\u00f4mes ne doivent pas \u00eatre confondus avec le vieillissement naturel des feuilles ou avec une carence en magn\u00e9sium.<\/p>\n<p>La pr\u00e9sence de betteraves individuelles pr\u00e9sentant des sympt\u00f4mes de jaunisse est in\u00e9vitable, m\u00eame lorsque les traitements ont \u00e9t\u00e9 correctement appliqu\u00e9s. Ces sympt\u00f4mes apparaissent 4 \u00e0 6 semaines apr\u00e8s l\u2019infection effective, c\u2019est-\u00e0-dire apr\u00e8s les vols de d\u00e9but mai. Des pr\u00e9l\u00e8vements permettront de d\u00e9terminer quel virus est pr\u00e9sent.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Nous voulons attirer l\u2019attention sur les premiers sympt\u00f4mes de la jaunisse qui ont \u00e9t\u00e9 observ\u00e9s. Il s\u2019agit g\u00e9n\u00e9ralement de plantes isol\u00e9es ou de quelques plantes. La jaunisse se manifeste par une d\u00e9coloration jaune en mosa\u00efque sur le bord de la feuille, puis entre les nervures sur les feuilles matures. Les feuilles atteintes deviennent plus \u00e9paisses, [&hellip;]<\/p>\n","protected":false},"author":3,"featured_media":28246,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"iawp_total_views":24,"footnotes":""},"categories":[2,221,129],"tags":[243],"class_list":["post-28267","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-betterave","category-maladies-foliaires","category-protection-des-plantes","tag-messages"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.8 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Premiers sympt\u00f4mes de jaunisse observ\u00e9s. - 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\/premiers-symptomes-de-jaunisse-observes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Premiers sympt\u00f4mes de jaunisse observ\u00e9s. - IRBAB-KBIVB\" \/>\n<meta property=\"og:description\" content=\"Nous voulons attirer l\u2019attention sur les premiers sympt\u00f4mes de la jaunisse qui ont \u00e9t\u00e9 observ\u00e9s. Il s\u2019agit g\u00e9n\u00e9ralement de plantes isol\u00e9es ou de quelques plantes. La jaunisse se manifeste par une d\u00e9coloration jaune en mosa\u00efque sur le bord de la feuille, puis entre les nervures sur les feuilles matures. 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