{"id":1228,"date":"2018-06-16T01:13:18","date_gmt":"2018-06-16T00:13:18","guid":{"rendered":"https:\/\/www.service-public.pf\/diren\/?page_id=1228"},"modified":"2018-06-16T01:15:11","modified_gmt":"2018-06-16T00:15:11","slug":"ricin","status":"publish","type":"page","link":"https:\/\/www.service-public.pf\/diren\/prevenir\/especes-envahissantes\/ricin\/","title":{"rendered":"Faux ricin"},"content":{"rendered":"<h3>Faux ricin, parasolier, arbre trompette,&rsquo;i&rsquo;ita popa&rsquo;a<\/h3>\n<p><b>Nom latin<\/b>:Cecropia\u00a0peltata<br \/>\n<b>Autre(s) nom(s)<\/b>:\u00a0Trumpet\u00a0tree<br \/>\n<b>Famille\u00a0<\/b>:\u00a0Urticaceae<\/p>\n<h3><\/h3>\n<h3>Comment reconna\u00eetre le parasolier ?<\/h3>\n<ul>\n<li class=\"rteindent1\"><b>Type\u00a0<\/b>: arbre<\/li>\n<li class=\"rteindent1\"><b>Taille\u00a0<\/b>: 3-10 m (pouvant atteindre 20 m) (1)<\/li>\n<li class=\"rteindent1\"><b>Feuille\u00a0<\/b>: grande feuille divis\u00e9e en 5 \u00e0 9\u00a0lobes (10-50 cm de long) \u00e0 face inf\u00e9rieure\u00a0poilue et blanch\u00e2tre (1)<\/li>\n<li class=\"rteindent1\"><b>Fleur\u00a0<\/b>: petites fleurs m\u00e2les et femelles\u00a0(1 mm) sur de longues\u00a0inflorescence\u00a0divis\u00e9es en \u00e9pis de 5-10 cm de long) (1)<\/li>\n<li class=\"rteindent1\"><b>Fruit\u00a0<\/b>: petits fruits secs et ronds\u00a0(appel\u00e9s\u00a0ak\u00e8nes*, de 1-2 mm) (1)<\/li>\n<li class=\"rteindent1\"><b>Graine\u00a0<\/b>: graines minuscules (0,5-1 mm),\u00a0une par fruit, 100-800 par\u00a0inflorescence\u00a0(1)<\/li>\n<\/ul>\n<h3>O\u00f9 trouve-t-on le parasolier ?<\/h3>\n<ul>\n<li class=\"rteindent1\"><b>Mode(s) de dispersion\u00a0<\/b>: oiseaux<\/li>\n<li class=\"rteindent1\"><b>Type(s) de v\u00e9g\u00e9tation envahi(s) en\u00a0Polyn\u00e9sie\u00a0fran\u00e7aise\u00a0<\/b>: for\u00eats s\u00e8ches et humides des zones\u00a0de basse et moyenne altitude (1)<\/li>\n<li class=\"rteindent1\"><b>Habitat(s) potentiel(s)\u00a0<\/b>: For\u00eats naturelles, zones agricoles et foresti\u00e8res, milieux perturb\u00e9s, zones\u00a0urbaines 2. Esp\u00e8ce\u00a0pionni\u00e8re\u00a0dans les zones tr\u00e8s expos\u00e9es au soleil, en effet, les graines n\u00e9cessitent une exposition au plein soleil pour germer (40)<\/li>\n<li class=\"rteindent1\"><b>Dur\u00e9e de vie\u00a0<\/b>: 30 ans (2)<\/li>\n<li class=\"rteindent1\"><b>Altitudes\u00a0<\/b>: 0-800 m (1)<\/li>\n<li class=\"rteindent1\">Floraison et fructification toute l\u2019ann\u00e9e (9)<\/li>\n<li class=\"rteindent1\">Croissance tr\u00e8s rapide de 10-15 cm en 10 semaines et de plus de 2 m durant la premi\u00e8re ann\u00e9e (40)<\/li>\n<\/ul>\n<h3>Quels sont ses impacts ?<\/h3>\n<ul>\n<li>D\u00e9stabilise les pentes rocheuses, favorise les glissements de terrain et la chute de blocs\u00a0Entre en comp\u00e9tition pour la lumi\u00e8re, l\u2019eau et les\u00a0nutriments\u00a0avec les esp\u00e8ces indig\u00e8nes\u00a0et end\u00e9miques et\u00a0mena\u00e7e\u00a0leur survie<\/li>\n<\/ul>\n<ul>\n<li>Augmente les co\u00fbts d\u2019entretien des zones ouvertes (terrain de particuliers, infrastructures,\u00a0plantations foresti\u00e8res).<\/li>\n<\/ul>\n<h3>Que peut-on faire contre le parasolier ?\u200b<\/h3>\n<ul>\n<li class=\"rteindent1\"><b>\u00a0Pr\u00e9vention\u00a0<\/b>:\n<ul>\n<li class=\"rteindent1\">\u00c9viter la mise \u00e0 nu du sol par incendies, ceux-ci favorisant l\u2019installation et la\u00a0multiplication de l\u2019esp\u00e8ce<\/li>\n<li class=\"rteindent1\">\u00c9viter\u00a0de propager les graines en transportant de la terre depuis des zones infest\u00e9es et veiller\u00a0\u00e0 ne pas en v\u00e9hiculer par le biais de terre ou de boue coll\u00e9es aux engins<\/li>\n<li class=\"rteindent1\">Bien nettoyer ses chaussures et son mat\u00e9riel de randonn\u00e9e apr\u00e8s chaque excursion en montagne<\/li>\n<\/ul>\n<\/li>\n<li><b>M\u00e9thode physique\u00a0<\/b>:\n<ul>\n<li>Arrachage des jeunes plants<\/li>\n<li>La coupe sans traitement est inefficace, les rejets apparaissent rapidement<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<ul>\n<li class=\"rteindent1\"><b>M\u00e9thode chimique\u00a0<\/b>:\n<ul>\n<li class=\"rteindent1\">Application sur coupe fra\u00eeche de souche, pour les individus plus \u00e2g\u00e9s,\u00a0d\u2019un herbicide adapt\u00e9 (22)<\/li>\n<\/ul>\n<\/li>\n<li class=\"rteindent1\"><b>M\u00e9thode int\u00e9gr\u00e9e\u00a0<\/b>:\n<ul>\n<li class=\"rteindent1\">Renforcement de l\u2019ombrage par plantation d\u2019esp\u00e8ces indig\u00e8nes<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<blockquote><p>&nbsp;<\/p><\/blockquote>\n<p><strong>R\u00e9f\u00e9rences<\/strong><\/p>\n<div>(1) Meyer J.-Y., Wan, V. &amp; Butaud J.-F. (2008) Les plantes envahissantes en Polyn\u00e9sie fran\u00e7aise. Direction de l\u2019environnement, D\u00e9l\u00e9gation \u00e0 la recherche, 84 p.<br \/>\n(2) Global Invasive Species Database, (2005). Available from:\u00a0<a href=\"http:\/\/www.issg.org\/database\/species\/ecology.asp?si=19&amp;fr=1&amp;sts=sss\">http:\/\/www.issg.org\/database\/species\/ecology.asp?si=19&amp;fr=1&amp;sts=sss<\/a>\u00a0[Accessed 23 December 2013]<br \/>\n(9) Florence, J. (1997) Flore de la Polyn\u00e9sie fran\u00e7aise, Volume 1. Editions de l\u2019ORSTOM Editions, Paris, 393 p.<br \/>\n(22) Weber E. (2003) Invasive plants of the World. CABI Publishing, CAB International, Wallingford, UK. 548 p.<br \/>\n(40) Silander, S. R. &amp; Lugo, A. E. Cecropia peltata L. (Yagrumo Hembra,Trumpet-Tree). Silvics of North American, USDA Agriculture Handbook 654.<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Faux ricin, parasolier, arbre trompette,&rsquo;i&rsquo;ita popa&rsquo;a Nom latin:Cecropia\u00a0peltata Autre(s) nom(s):\u00a0Trumpet\u00a0tree Famille\u00a0:\u00a0Urticaceae Comment reconna\u00eetre le parasolier ? Type\u00a0: arbre Taille\u00a0: 3-10 m (pouvant atteindre 20 m) (1) Feuille\u00a0: grande feuille divis\u00e9e en 5 \u00e0 9\u00a0lobes (10-50 cm de long) \u00e0 face inf\u00e9rieure\u00a0poilue et blanch\u00e2tre (1) Fleur\u00a0: petites fleurs m\u00e2les et femelles\u00a0(1 mm) sur de longues\u00a0inflorescence\u00a0divis\u00e9es en  [&#8230;]<\/p>\n","protected":false},"author":83,"featured_media":0,"parent":228,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"class_list":["post-1228","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/1228","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/users\/83"}],"replies":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/comments?post=1228"}],"version-history":[{"count":0,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/1228\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/pages\/228"}],"wp:attachment":[{"href":"https:\/\/www.service-public.pf\/diren\/wp-json\/wp\/v2\/media?parent=1228"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}