{"id":5672,"date":"1997-07-01T10:45:56","date_gmt":"1997-07-01T07:45:56","guid":{"rendered":"http:\/\/frrp.wpengine.com\/?post_type=radio-resource-packs&#038;p=5672"},"modified":"2018-02-13T18:58:21","modified_gmt":"2018-02-13T15:58:21","slug":"comprendre-les-maladies-des-plantes-premiere-partie","status":"publish","type":"radio-script","link":"https:\/\/scripts.farmradio.fm\/fr\/texte-radiophonique\/comprendre-les-maladies-des-plantes-premiere-partie\/","title":{"rendered":"Comprendre les maladies des plantes &#8211; Premi\u00e8re partie"},"content":{"rendered":"<p>Vous demandez-vous pourquoi les feuilles de vos plantes sont racornies ou tombent ? Ou bien pourquoi, par exemple, les grains ne se forment pas sur vos plants de riz ? Il y a de nombreuses raisons possibles. Mais voici une explication. Vos plantes sont peut \u00eatre malades.<\/p>\n<p>Aujourd&rsquo;hui, nous parlerons des maladies, et pourquoi les plantes deviennent malades.<\/p>\n<p><strong>Comment reconna\u00eetre une maladie ?<\/strong><\/p>\n<p>Pour commencer, nous verrons rapidement comment reconna\u00eetre une maladie. Quand une personne est malade, plusieurs choses peuvent se produire. Par exemple, elles peuvent avoir la fi\u00e8vre, tousser beaucoup ou avoir de la temp\u00e9rature. Elles vont peut-\u00eatre se sentir faibles et fatigu\u00e9es. C&rsquo;est la m\u00eame chose pour les plantes ! Quand les plantes sont malades, elles paraissent et se sentent diff\u00e9rentes aussi. Par exemple, les feuilles sur une plante peuvent avoir des couleurs diff\u00e9rentes. Ou la tige peut pourrir et tomber. Si une plante a une maladie, ses fruits peuvent \u00eatre mous et pourris. Ou encore ses racines se mettront \u00e0 pourrir ou \u00e0 gonfler.<\/p>\n<p><strong>Comment les plantes tombent malades ?<\/strong><\/p>\n<p>Les plantes tombent malades de la m\u00eame mani\u00e8re que les humains. De nombreuses maladies humaines sont caus\u00e9es par de minuscules cr\u00e9atures vivantes (micro-organismes). Nous appellerons ces cr\u00e9atures des &laquo; agents pathog\u00e8nes &raquo;. Certains agents pathog\u00e8nes p\u00e9n\u00e9trent dans le corps humain et l&rsquo;infectent avec une maladie donn\u00e9e. D&rsquo;autres agents pathog\u00e8nes peuvent aussi p\u00e9n\u00e9trer dans les plantes et les infecter avec des maladies.<\/p>\n<p>Il y a quatre grandes cat\u00e9gories d&rsquo;agents pathog\u00e8nes qui causent les maladies des plantes. Ce sont: les champignons, les bact\u00e9ries, les virus et les n\u00e9matodes. Ces agents pathog\u00e8nes sont habituellement transmis d&rsquo;une plante \u00e0 l&rsquo;autre par les insectes ou par le vent. Les agents pathog\u00e8nes ont besoin de plusieurs choses pour grandir et se reproduire. Ils ont besoin de plantes pour les nourrir, ils ont besoin d&rsquo;une certaine temp\u00e9rature, et ils ont besoin du bon degr\u00e9 d&rsquo;humidit\u00e9. Plusieurs agents pathog\u00e8nes sont plus actifs et infectent plus de plantes lorsque leur environnement est chaud et humide.<\/p>\n<p>Les plantes sont aussi comme les humains, d&rsquo;une certaine mani\u00e8re. Les humains ont besoin d&rsquo;une bonne alimentation et d&rsquo;eau pour grandir en sant\u00e9. Les plantes aussi. Si votre sol contient beaucoup d&rsquo;\u00e9l\u00e9ments nutritifs, et si vos plantes ont assez d&rsquo;eau, elles pousseront bien. Si elles sont robustes, elles pourront mieux r\u00e9sister aux maladies. Cela veut dire que m\u00eame s&rsquo;il y a des maladies dans les champs ou dans le sol, vos plantes auront une meilleure chance de rester en bonne sant\u00e9 et d&rsquo;\u00eatre robustes.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Vous demandez-vous pourquoi les feuilles de vos plantes sont racornies ou tombent ? Ou bien pourquoi, par exemple, les grains ne se forment pas sur vos plants de riz ? Il y a de nombreuses raisons possibles. Mais voici une explication. Vos plantes sont peut \u00eatre malades. Aujourd&rsquo;hui, nous parlerons des maladies, et pourquoi les&hellip;<\/p>\n","protected":false},"author":142,"featured_media":0,"parent":0,"menu_order":8,"template":"","meta":{"footnotes":"","beyondwords_generate_audio":"","beyondwords_integration_method":"","beyondwords_project_id":"","beyondwords_content_id":"","beyondwords_preview_token":"","beyondwords_player_content":"","beyondwords_player_style":"","beyondwords_language_code":"","beyondwords_language_id":"","beyondwords_title_voice_id":"","beyondwords_body_voice_id":"","beyondwords_summary_voice_id":"","beyondwords_error_message":"","beyondwords_disabled":"","beyondwords_delete_content":"","beyondwords_podcast_id":"","beyondwords_hash":"","publish_post_to_speechkit":"","speechkit_hash":"","speechkit_generate_audio":"","speechkit_project_id":"","speechkit_podcast_id":"","speechkit_error_message":"","speechkit_disabled":"","speechkit_access_key":"","speechkit_error":"","speechkit_info":"","speechkit_response":"","speechkit_retries":"","speechkit_status":"","speechkit_updated_at":"","_speechkit_link":"","_speechkit_text":""},"script-format":[487],"package":[711],"script-category":[438],"class_list":["post-5672","radio-script","type-radio-script","status-publish","hentry","script-format-fiche-documentaire","package-711","script-category-agriculture"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Comprendre les maladies des plantes - Premi\u00e8re partie - Farm Radio Scripts<\/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:\/\/scripts.farmradio.fm\/fr\/texte-radiophonique\/comprendre-les-maladies-des-plantes-premiere-partie\/\" \/>\n<meta property=\"og:locale\" content=\"fr_CA\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Comprendre les maladies des plantes - Premi\u00e8re partie - Farm Radio Scripts\" \/>\n<meta property=\"og:description\" content=\"Vous demandez-vous pourquoi les feuilles de vos plantes sont racornies ou tombent ? 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