{"id":3862,"date":"2017-01-18T15:36:22","date_gmt":"2017-01-18T14:36:22","guid":{"rendered":"https:\/\/www.fredonoccitanie.com\/surveillance\/?page_id=3862"},"modified":"2026-03-13T15:43:12","modified_gmt":"2026-03-13T14:43:12","slug":"nematode-pin","status":"publish","type":"page","link":"https:\/\/www.fredonoccitanie.com\/surveillance\/foret\/nematode-pin\/","title":{"rendered":"Le N\u00e9matode du Pin"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-30bu8sm-950dc07d5e60477eac3dfb0d3749dbf9 main_color avia-section-default avia-no-border-styling  avia-builder-el-0  el_before_av_section  avia-builder-el-first  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><main  role=\"main\" itemprop=\"mainContentOfPage\"  class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2ycvdhi-b9cc9f86965ec50bcb0500fb0aa154b0\">\n.flex_column.av-2ycvdhi-b9cc9f86965ec50bcb0500fb0aa154b0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2ycvdhi-b9cc9f86965ec50bcb0500fb0aa154b0 av_one_full  avia-builder-el-1  el_before_av_one_third  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-ai6epy-a82a87a272113f81429b7ed5cc7cac04 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1 style=\"text-align: center;\">Carte d\u2019identit\u00e9<\/h1>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-aark8m-e539dcf656c7b9ae2c639c8fd20e38d1\">\n.flex_column.av-aark8m-e539dcf656c7b9ae2c639c8fd20e38d1{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-aark8m-e539dcf656c7b9ae2c639c8fd20e38d1 av_one_third  avia-builder-el-3  el_after_av_one_full  el_before_av_one_third  first flex_column_div av-zero-column-padding  column-top-margin'     ><div  class='avia-slideshow av-kruftvpw-1c2b371dfafef67d0183a8f4c720bc7c avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-4  avia-builder-el-no-sibling  av-slideshow-ui av-control-minimal av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-1' data-slideshow-options=\"{&quot;animation&quot;:&quot;slide&quot;,&quot;autoplay&quot;:false,&quot;loop_autoplay&quot;:&quot;once&quot;,&quot;interval&quot;:5,&quot;loop_manual&quot;:&quot;manual-endless&quot;,&quot;autoplay_stopper&quot;:false,&quot;noNavigation&quot;:false,&quot;bg_slider&quot;:false,&quot;keep_padding&quot;:false,&quot;hoverpause&quot;:false,&quot;show_slide_delay&quot;:0}\"  itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><ul class='avia-slideshow-inner ' style='padding-bottom: 56.25%;'><li  class='avia-slideshow-slide av-kruftvpw-1c2b371dfafef67d0183a8f4c720bc7c__0  av-single-slide slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-5061 avia-img-lazy-loading-not-5061\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/08\/bursaphelenchus-xylophilus_source_UCdavis.jpg\" width=\"640\" height=\"360\" title='bursaphelenchus xylophilus' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/08\/bursaphelenchus-xylophilus_source_UCdavis.jpg 640w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/08\/bursaphelenchus-xylophilus_source_UCdavis-300x169.jpg 300w\" sizes=\"(max-width: 640px) 100vw, 640px\" \/><\/div><\/li><\/ul><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-a8aed2-705bd8aa7247e9f9e387ad6511a7b71e\">\n.flex_column.av-a8aed2-705bd8aa7247e9f9e387ad6511a7b71e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-a8aed2-705bd8aa7247e9f9e387ad6511a7b71e av_one_third  avia-builder-el-5  el_after_av_one_third  el_before_av_one_third  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krufrzrn-7d5efcb7a16aaea374d9e4ffdbb4cc55 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>NOM VERNACULAIRE :<\/strong> N\u00e9matode du Pin<br \/>\n<strong>RAVAGEUR :<\/strong> <em>Bursaphelenchus xylophilus<\/em><br \/>\n<strong>PLANTES HOTES :<\/strong> Pr\u00e9f\u00e9rentiellement sur Pins (<em>Pinus spp.<\/em>) ; potentiellement tous les conif\u00e8res (sauf Thuya)<br \/>\n<strong>VECTEURS :<\/strong> col\u00e9opt\u00e8res du genre <em>Monochamus ;<\/em> en Europe,<em> Monochamus galloprovincialis<\/em><br \/>\n<strong>IMPACTS :<\/strong> perte de vigueur pouvant aller jusqu\u2019au d\u00e9p\u00e9rissement et mort de l\u2019arbre en 30-40 jours<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2rml0uu-f55dec344aecaa4a29b470264ea4fa7e\">\n.flex_column.av-2rml0uu-f55dec344aecaa4a29b470264ea4fa7e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2rml0uu-f55dec344aecaa4a29b470264ea4fa7e av_one_third  avia-builder-el-7  el_after_av_one_third  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-krufslxr-343b7d809b023b7d5d43208df3aa703f\">\n#top .av_textblock_section.av-krufslxr-343b7d809b023b7d5d43208df3aa703f .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-krufslxr-343b7d809b023b7d5d43208df3aa703f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock bloc_infos av_inherit_color'  itemprop=\"text\" ><h2>Ressources<\/h2>\n<p style=\"text-align: left;\"><a href=\"https:\/\/fredonoccitanie189-my.sharepoint.com\/:b:\/g\/personal\/e_algans_fredon-occitanie_fr\/EaVnSV27709AuI1C2JDMmdQBeFnE6dj8TwrAikdrxyqNgA?e=lRREPb\" target=\"_blank\" rel=\"noopener\">Plaquette d\u2019information<\/a><\/p>\n<p><a href=\"https:\/\/www.fredonoccitanie.com\/surveillance\/2025\/11\/07\/nematode-du-pin-un-foyer-de-nematode-du-pin-detecte-pour-la-premiere-fois-en-france\/\">En savoir plus : Foyer N\u00e9matode du pin &#8211; Novembre 2025<\/a><\/p>\n<p><a style=\"background: #ca1823; color: #fff; padding: 1px 25px; text-decoration: none; border-radius: 8px; font-size: 18px; font-family: Arial, sans-serif; display: inline-block; cursor: pointer;\" href=\"https:\/\/draaf.occitanie.agriculture.gouv.fr\/signaler-un-organisme-nuisible-aux-vegetaux-a9380.html#:~:text=Il%20peut,controler\" target=\"_blank\" rel=\"noopener\"> Faire un signalement <\/a><\/p>\n<p><a href=\"..\/wp-content\/uploads\/sites\/4\/2017\/03\/Le_nematode_du_pin_et_sa_dissemination__le_point_des_connaissances.pdf\" target=\"_blank\" rel=\"noopener\">Le n\u00e9matode du pin et sa diss\u00e9mination, DSF, 2009<\/a><\/p>\n<p><a href=\"https:\/\/plateforme-esv.fr\/nematode_du_pin\" target=\"_blank\" rel=\"noopener\">Fiche sur la Plateforme d\u2019Epid\u00e9miosurveillance Sant\u00e9 V\u00e9g\u00e9tale (ESV)<\/a><\/p>\n<\/div><\/section><\/div><\/div><\/div><\/main><!-- close content main element --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2pwil1i-535ad8d831fb715471c489809f9f3f5d\">\n.avia-section.av-2pwil1i-535ad8d831fb715471c489809f9f3f5d{\nbackground-color:#576b35;\nbackground-image:unset;\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div id='av_section_2'  class='avia-section av-2pwil1i-535ad8d831fb715471c489809f9f3f5d main_color avia-section-default avia-no-border-styling  avia-builder-el-9  el_after_av_section  el_before_av_section  titre_site avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-yosom-ddea72864841623d2389753e9e084941\">\n#top .flex_column.av-yosom-ddea72864841623d2389753e9e084941{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-yosom-ddea72864841623d2389753e9e084941{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n.responsive #top #wrap_all .flex_column.av-yosom-ddea72864841623d2389753e9e084941{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-yosom-ddea72864841623d2389753e9e084941 av_one_third  avia-builder-el-10  el_before_av_two_third  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2mr50ba-5b65ef6cb0a1e44da694bfbb7661762e\">\n#top .av_textblock_section.av-2mr50ba-5b65ef6cb0a1e44da694bfbb7661762e .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-2mr50ba-5b65ef6cb0a1e44da694bfbb7661762e '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><p><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-365 alignright\" src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2021\/06\/picto_surveillance.png\" alt=\"\" width=\"140\" height=\"140\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2021\/06\/picto_surveillance.png 140w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2021\/06\/picto_surveillance-80x80.png 80w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2021\/06\/picto_surveillance-36x36.png 36w\" sizes=\"auto, (max-width: 140px) 100vw, 140px\" \/><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2ktosli-ce7061d4c2e0e5fe307393cf46223668\">\n#top .hr.hr-invisible.av-2ktosli-ce7061d4c2e0e5fe307393cf46223668{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-2ktosli-ce7061d4c2e0e5fe307393cf46223668 hr-invisible  avia-builder-el-12  el_after_av_textblock  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2jdqxs6-f15b9a202f930959b1d90f45b88b015e\">\n#top .flex_column.av-2jdqxs6-f15b9a202f930959b1d90f45b88b015e{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-2jdqxs6-f15b9a202f930959b1d90f45b88b015e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n.responsive #top #wrap_all .flex_column.av-2jdqxs6-f15b9a202f930959b1d90f45b88b015e{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-2jdqxs6-f15b9a202f930959b1d90f45b88b015e av_two_third  avia-builder-el-13  el_after_av_one_third  avia-builder-el-last  flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2io5arq-3c4860885d35f3b5dae23d12bea40d50\">\n#top .hr.hr-invisible.av-2io5arq-3c4860885d35f3b5dae23d12bea40d50{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-2io5arq-3c4860885d35f3b5dae23d12bea40d50 hr-invisible  avia-builder-el-14  el_before_av_textblock  avia-builder-el-first '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-8u6k3a-575ecb6af16619825e46b2e48173121c\">\n#top .av_textblock_section.av-8u6k3a-575ecb6af16619825e46b2e48173121c .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-8u6k3a-575ecb6af16619825e46b2e48173121c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h5 style=\"text-align: left;\">Le n\u00e9matode du pin, <em><strong>Bursaphelenchus xylophilus<\/strong><\/em>, est un n\u00e9matode parasite microscopique xylophage, ravageur des conif\u00e8res, appartenant \u00e0 la famille des parasitaphelenchidae. Il se nourrit des cellules du bois des conif\u00e8res, et peut provoquer en quelques mois le d\u00e9p\u00e9rissement et la <strong>mort des arbres infest\u00e9s<\/strong>.<\/h5>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2yytiu-3e763b1f91cbce0da81b0bb067f12dea\">\n#top .hr.hr-invisible.av-2yytiu-3e763b1f91cbce0da81b0bb067f12dea{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-2yytiu-3e763b1f91cbce0da81b0bb067f12dea hr-invisible  avia-builder-el-16  el_after_av_textblock  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><\/p><\/div>\n<\/p>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2fbuvpi-537e2a299da448e8bac6763ee0156ad1\">\n.avia-section.av-2fbuvpi-537e2a299da448e8bac6763ee0156ad1{\nbackground-color:#dbdbcf;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_3'  class='avia-section av-2fbuvpi-537e2a299da448e8bac6763ee0156ad1 main_color avia-section-default avia-no-border-styling  avia-builder-el-17  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2dqgh9y-172fcb509c49a251bc488914379e98bd\">\n.flex_column.av-2dqgh9y-172fcb509c49a251bc488914379e98bd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2dqgh9y-172fcb509c49a251bc488914379e98bd av_one_half  avia-builder-el-18  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-2c4s06u-99d19e44d8b042fe8ac2b95aa3ac8de5 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Le n\u00e9matode du pin,\u00a0<em><strong>Bursaphelenchus xylophilus<\/strong><\/em>, est un n\u00e9matode parasite microscopique xylophage, ravageur des conif\u00e8res, appartenant \u00e0 la famille des parasitaphelenchidae. Il se nourrit des cellules du bois des conif\u00e8res, et peut provoquer en quelques mois le d\u00e9p\u00e9rissement et la <strong>mort des arbres infest\u00e9s<\/strong>.<\/p>\n<p>Les pins europ\u00e9ens sont tr\u00e8s sensibles au n\u00e9matode du pin. Il est transmis des arbres contamin\u00e9s aux arbres sains par un vecteur appartenant \u00e0 l\u2019ordre des col\u00e9opt\u00e8res longicornes, du genre <em>Monochamus <\/em>(famille des cerambycidae). Ces insectes deviennent porteurs du n\u00e9matode si leur d\u00e9veloppement s\u2019est d\u00e9roul\u00e9 dans un arbre contamin\u00e9.<\/p>\n<p style=\"text-align: justify;\" align=\"justify\">Originaire d\u2019Am\u00e9rique du Nord o\u00f9 le ravageur a \u00e9t\u00e9 d\u00e9crit pour la premi\u00e8re fois en 1929, le n\u00e9matode du pin a \u00e9t\u00e9 introduit au Japon au d\u00e9but du 20\u00e8me si\u00e8cle, o\u00f9 il a provoqu\u00e9 des d\u00e9g\u00e2ts consid\u00e9rables. Il s\u2019est ensuite \u00e9tendu au sud de la Chine, en R\u00e9publique de Cor\u00e9e, \u00e0 Ta\u00efwan. On le retrouve \u00e9galement au Canada, Mexique et aux \u00c9tats-Unis. En Europe, il est pr\u00e9sent au Portugal depuis 1999 et depuis 2008 en Espagne en foyers limit\u00e9s et en cours d\u2019\u00e9radication.\u00a0En France, un foyer de n\u00e9matode du pin a \u00e9t\u00e9<a href=\"https:\/\/agriculture.gouv.fr\/sante-des-vegetaux-un-foyer-de-nematode-du-pin-detecte-pour-la-premiere-fois-en-france\"> confirm\u00e9 pour la premi\u00e8re fois en novembre 2025, dans la commune de Seignosse (Landes).<\/a><\/p>\n<p style=\"text-align: justify;\" align=\"justify\">Ce n\u00e9matode est aujourd\u2019hui consid\u00e9r\u00e9 comme une <strong>esp\u00e8ce invasive faisant l\u2019objet d\u2019un plan de surveillance<\/strong>, de mesures de <strong>quarantaine<\/strong> et de <strong>d\u00e9sinfection obligatoire des bois<\/strong>. Sa dispersion est fortement favoris\u00e9e par le transport de bois contamin\u00e9s, les monocultures de pins et par la pr\u00e9sence d\u2019insectes vecteurs du genre <em>Monochamus.<\/em> Les d\u00e9g\u00e2ts imput\u00e9s \u00e0 ce parasite sont consid\u00e9rables, il est donc important de respecter les mesures mises en place pour <strong>limiter l\u2019introduction et la dispersion de cette esp\u00e8ce invasive sur le territoire<\/strong>.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-85z2mu-fc88b598426bd6b05f6f4384cd11293e\">\n.flex_column.av-85z2mu-fc88b598426bd6b05f6f4384cd11293e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-85z2mu-fc88b598426bd6b05f6f4384cd11293e av_one_half  avia-builder-el-20  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  '     ><p>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-27kvl2e-be510c7ec652dc58d51273de79aa27e8\">\n.avia-image-container.av-27kvl2e-be510c7ec652dc58d51273de79aa27e8 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-27kvl2e-be510c7ec652dc58d51273de79aa27e8 .av-caption-image-overlay-bg{\nopacity:0.4;\n}\n.avia-image-container.av-27kvl2e-be510c7ec652dc58d51273de79aa27e8 .av-image-caption-overlay-center{\ncolor:#ffffff;\nfont-size:14px;\n}\n<\/style>\n<div  class='avia-image-container av-27kvl2e-be510c7ec652dc58d51273de79aa27e8 av-styling-no-styling avia-align-center  avia-builder-el-21  el_before_av_image  avia-builder-el-first  noHover av-overlay-on-hover'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><div class=\"av-image-caption-overlay\"><div class=\"av-caption-image-overlay-bg\"><\/div><div class=\"av-image-caption-overlay-position\"><div class=\"av-image-caption-overlay-center\"><p>Ch\u00e2taignier contamin\u00e9<\/p>\n<\/div><\/div><\/div><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-3771 avia-img-lazy-loading-not-3771 avia_image ' src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-1.jpg\" alt='Monochamus spp.' title='Monochamus spp.'  height=\"322\" width=\"580\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-1.jpg 580w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-1-300x167.jpg 300w\" sizes=\"(max-width: 580px) 100vw, 580px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-krufx6sl-33935cbb31f45d964f19aff87c7c8902\">\n.avia-image-container.av-krufx6sl-33935cbb31f45d964f19aff87c7c8902 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-krufx6sl-33935cbb31f45d964f19aff87c7c8902 .av-caption-image-overlay-bg{\nopacity:0.4;\n}\n.avia-image-container.av-krufx6sl-33935cbb31f45d964f19aff87c7c8902 .av-image-caption-overlay-center{\ncolor:#ffffff;\nfont-size:14px;\n}\n<\/style>\n<div  class='avia-image-container av-krufx6sl-33935cbb31f45d964f19aff87c7c8902 av-styling-no-styling avia-align-center  avia-builder-el-22  el_after_av_image  avia-builder-el-last  noHover av-overlay-on-hover'   itemprop=\"image\" itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/ImageObject\" ><div class=\"avia-image-container-inner\"><div class=\"avia-image-overlay-wrap\"><div class=\"av-image-caption-overlay\"><div class=\"av-caption-image-overlay-bg\"><\/div><div class=\"av-image-caption-overlay-position\"><div class=\"av-image-caption-overlay-center\"><p>Ch\u00e2taignier contamin\u00e9<\/p>\n<\/div><\/div><\/div><img decoding=\"async\" fetchpriority=\"high\" class='wp-image-3767 avia-img-lazy-loading-not-3767 avia_image ' src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-2.jpg\" alt='monochamus sp, vecteur du n\u00e9matode du pin' title='monochamus sp, vecteur du n\u00e9matode du pin'  height=\"506\" width=\"759\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-2.jpg 759w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-2-300x200.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/monochamus-2-705x470.jpg 705w\" sizes=\"(max-width: 759px) 100vw, 759px\" \/><\/div><\/div><\/div><\/p><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-8g1q6u-1780ec6caa909680d936afd15fbedf15\">\n.avia-section.av-8g1q6u-1780ec6caa909680d936afd15fbedf15{\nbackground-color:#f8ead4;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_4'  class='avia-section av-8g1q6u-1780ec6caa909680d936afd15fbedf15 main_color avia-section-default avia-no-border-styling  avia-builder-el-23  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-84222e-5a2715001d6b2e492f08e0958558d604\">\n.flex_column.av-84222e-5a2715001d6b2e492f08e0958558d604{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-84222e-5a2715001d6b2e492f08e0958558d604 av_one_full  avia-builder-el-24  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-krug0jr5-f2aa070e25309db78d66c79770490f6b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h2 style=\"text-align: center;\"><strong>Biologie et Dispersion<\/strong><\/h2>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-jcvuu-7ef3e36700a14e1a7f9c3b262e2f547c\">\n.flex_column.av-jcvuu-7ef3e36700a14e1a7f9c3b262e2f547c{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-jcvuu-7ef3e36700a14e1a7f9c3b262e2f547c av_one_half  avia-builder-el-26  el_after_av_one_full  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-hpq86-cba606182ba120d56e3ee0c590d6403b '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<p style=\"text-align: justify;\">Ce n\u00e9matode est principalement mycophage (qui se nourrit de champignons), mais il est aujourd\u2019hui un <strong>parasite de nombreuses esp\u00e8ces de conif\u00e8res<\/strong>. Il est en effet \u00e9galement xylophage, c\u2019est \u00e0 dire qu\u2019il consomme les cellules du bois des arbres infest\u00e9s, ce qui entraine un d\u00e9p\u00e9rissement rapide et global de l\u2019arbre.<\/p>\n<p style=\"text-align: justify;\">Son cycle de vie se r\u00e9partit en deux phases distinctes: une phase mycophage durant laquelle il consomme les champignons saphroxylophages attaquant le bois mort pourrissant, qui d\u00e9composent la lignine et la cellulose que le n\u00e9matode ne peut directement dig\u00e9rer ; et une phase xylophage durant laquelle il attaque lui m\u00eame directement le bois vivant.<\/p>\n<p style=\"text-align: justify;\">Dans des conditions de d\u00e9veloppement id\u00e9ales, on peut d\u00e9nombrer plusieurs milliers de n\u00e9matodes par centim\u00e8tre cube de bois infest\u00e9. Ce parasite est cependant <strong>peu mobile<\/strong> dans l\u2019environnement, et contamine dans de rares cas un nouvel arbre h\u00f4te dans l\u2019environnement proche, essentiellement lorsqu\u2019il existe un contact physique entre un individu infest\u00e9 et un individu sain (par le biais de troncs ou de racines qui se touchent, par exemple).<\/p>\n<p style=\"text-align: justify;\">Il est ainsi essentiellement <strong>d\u00e9pendant d\u2019un vecteur pour sa dispersion et sa transmission \u00e0 un nouvel arbre h\u00f4te<\/strong>.<\/p>\n<p style=\"text-align: justify;\">\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2ozt52-870cfc5f14f3af2a36862cf48b6f7d6b\">\n.flex_column.av-2ozt52-870cfc5f14f3af2a36862cf48b6f7d6b{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2ozt52-870cfc5f14f3af2a36862cf48b6f7d6b av_one_half  avia-builder-el-28  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><section  class='av_textblock_section av-krug0ytd-e93058238439d02fd882235dcad7a4de '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<p style=\"text-align: justify;\">Le principal vecteur de <em>Bursaphelenchus xylophilus <\/em>en Europe est le col\u00e9opt\u00e8re longicorne<strong><em> Monochamus<\/em> <em> galloprovincialis<\/em><\/strong>. Il s\u2019agit d\u2019une esp\u00e8ce xylophage, qui provoque des blessures sur les arbres par des forages pour s\u2019alimenter et pondre ses \u0153ufs dans le bois. Dans le cas o\u00f9 cet insecte s\u2019attaque \u00e0 un conif\u00e8re infest\u00e9 par le n\u00e9matode du pin, les larves de <em>Monochamus<\/em> issues des \u0153ufs pondus dans le bois de l\u2019arbre malade vont ing\u00e9rer et transporter les n\u00e9matodes dans la partie sup\u00e9rieure de leur tube digestif. Lors de leur phase adulte, ces insectes volants vont alors se disperser pour s\u2019alimenter et <strong>provoquer l\u2019infection sur de nouveaux arbres h\u00f4tes<\/strong> par les blessures d\u2019alimentation. Toute la phase adulte des <em>Monochamus,<\/em> qui peut durer plusieurs semaines, correspond \u00e0 la phase de dispersion et d\u2019inoculation du n\u00e9matode du pin. <strong>Ces insectes sont tr\u00e8s mobiles<\/strong> et r\u00e9alisent de nombreux arr\u00eats sur plusieurs arbres pour s\u2019alimenter, et peuvent contenir plusieurs milliers de n\u00e9matodes. Ainsi, <strong>la dispersion de l\u2019agent pathog\u00e8ne peut \u00eatre extr\u00eamement rapide sur un territoire important. En quelques semaines, les arbres infect\u00e9s peuvent alors d\u00e9p\u00e9rir si les conditions favorables \u00e0 la multiplication des n\u00e9matodes sont r\u00e9unies.<\/strong><\/p>\n<p style=\"text-align: justify;\">Le n\u00e9matode du pin peut \u00e9galement \u00eatre dispers\u00e9 par des <strong>bois de conif\u00e8res contamin\u00e9s<\/strong>, tels que les bois d\u2019emballage, d\u2019arrimage, de copeaux ou de d\u00e9chets, et les \u00e9corces isol\u00e9es de conif\u00e8res. Un plan de surveillance et de d\u00e9sinfection obligatoire des bois a \u00e9t\u00e9 mis en place pour r\u00e9aliser des contr\u00f4les afin d\u2019\u00e9viter une introduction accidentelle de l\u2019agent pathog\u00e8ne sur le territoire.<\/p>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_5'  class='avia-section av-1vf9cae-f0090cdba3094317215c5ec897294b72 main_color avia-section-default avia-no-border-styling  avia-builder-el-30  el_after_av_section  el_before_av_section  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1u5gw5i-d3d413658c1f810850da1ccf07f68953\">\n.flex_column.av-1u5gw5i-d3d413658c1f810850da1ccf07f68953{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1u5gw5i-d3d413658c1f810850da1ccf07f68953 av_one_full  avia-builder-el-31  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-1rgb5xy-01048950c53a0725d46cd141f3a16d05 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1 style=\"text-align: center;\">Sympt\u00f4mes<\/h1>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-69bkva-f2930ed82bf22050b180c000df93e1ce\">\n.flex_column.av-69bkva-f2930ed82bf22050b180c000df93e1ce{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 10%;\n}\n<\/style>\n<div  class='flex_column av-69bkva-f2930ed82bf22050b180c000df93e1ce av_one_half  avia-builder-el-33  el_after_av_one_full  el_before_av_one_half  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-1o94n92-40d4008a9b7ab14099b6ac1c260635f1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"column-1_2 sc_column_item sc_column_item_2 even\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<p>Les adultes de <em>Monochamus<\/em> vecteurs du n\u00e9matode du pin se nourrissent essentiellement au niveau du houppier des arbres, c\u2019est donc la zone o\u00f9 l\u2019on observera g\u00e9n\u00e9ralement les premiers sympt\u00f4mes de d\u00e9p\u00e9rissement.<\/p>\n<p>Deux types d\u2019observations sont \u00e0 r\u00e9aliser pour effectuer un diagnostic sur un arbre suspect.<\/p>\n<ul>\n<li>L\u2019observation de sympt\u00f4mes de d\u00e9p\u00e9rissement \u00e0 proprement parler : <strong>jaunissement puis fl\u00e9trissement g\u00e9n\u00e9ralis\u00e9 des aiguilles sur un ou plusieurs rameaux<\/strong>, dus \u00e0 la rupture de l\u2019alimentation en s\u00e8ve par le xyl\u00e8me caus\u00e9e par la multiplication des n\u00e9matodes dans la zone sous-corticale du bois.<\/li>\n<li>L\u2019observation de blessures caus\u00e9es par l\u2019insecte vecteur : lors de la ponte, les <em>Monochamus<\/em> creusent des <strong>encoches transversales dans l\u2019\u00e9corce<\/strong>. On peut observer des <strong>galeries dans le bois<\/strong> si l\u2019on retire l\u2019\u00e9corce, caus\u00e9es par les larves qui s\u2019alimentent en creusant l\u2019aubier. On peut \u00e9galement observer des <strong>orifices de sortie des larve<\/strong>s ayant atteint le stade adulte, g\u00e9n\u00e9ralement arrondis, avec ou sans \u00e9corce.<\/li>\n<\/ul>\n<p>Lorsque l\u2019on observe des sympt\u00f4mes de d\u00e9p\u00e9rissement et de jaunissement associ\u00e9s \u00e0 des traces de ponte de <em>Monochamus<\/em>, le diagnostic s\u2019orientera sur une infestation de l\u2019arbre par le n\u00e9matode du pin.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1m8erfa-a70ddcee8d4a0e2422b293d4d18ad2b6\">\n.flex_column.av-1m8erfa-a70ddcee8d4a0e2422b293d4d18ad2b6{\nborder-radius:0px 0px 0px 0px;\npadding:0px 10% 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1m8erfa-a70ddcee8d4a0e2422b293d4d18ad2b6 av_one_half  avia-builder-el-35  el_after_av_one_half  avia-builder-el-last  flex_column_div  column-top-margin'     ><div  class='avia-slideshow 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class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-3765 avia-img-lazy-loading-not-3765\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/P1060490.jpg\" width=\"704\" height=\"528\" title='D\u00e9g\u00e2ts occasionn\u00e9s par le N\u00e9matode du Pin' alt='D\u00e9g\u00e2ts occasionn\u00e9s par le N\u00e9matode du Pin'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/P1060490.jpg 704w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/P1060490-300x225.jpg 300w\" sizes=\"(max-width: 704px) 100vw, 704px\" \/><\/div><\/li><\/ul><\/div><\/div>\n\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='av_section_6'  class='avia-section av-218edy-38ecf5616b63163df33eb56da9b33765 main_color avia-section-default avia-no-border-styling  avia-builder-el-37  el_after_av_section  avia-builder-el-last  avia-bg-style-scroll container_wrap fullsize'  ><div class='container av-section-cont-open' ><div class='template-page content  av-content-full alpha units'><div class='post-entry post-entry-type-page post-entry-3862'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-izqa3a-e8c42dcc6ea8a9c000f97e87e31a441c\">\n.flex_column.av-izqa3a-e8c42dcc6ea8a9c000f97e87e31a441c{\nborder-radius:0px 0px 0px 0px;\npadding:20px 20px 20px 20px;\nbackground-color:#f8ead4;\n}\n<\/style>\n<div  class='flex_column av-izqa3a-e8c42dcc6ea8a9c000f97e87e31a441c av_one_full  avia-builder-el-38  el_before_av_one_full  avia-builder-el-first  first flex_column_div  '     ><section  class='av_textblock_section av-gt94ue-f8f80edeb2ab7569f855e8da790cb6ae '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1 style=\"text-align: center;\">R\u00e9glementations<\/h1>\n<p><a href=\"https:\/\/eur-lex.europa.eu\/legal-content\/FR\/TXT\/HTML\/?uri=CELEX:32016R2031&amp;from=FR\">R\u00e8glement (UE) 2016\/2031 du 26 octobre 2016<\/a><\/p>\n<p><a href=\"https:\/\/eur-lex.europa.eu\/legal-content\/FR\/TXT\/HTML\/?uri=CELEX:32019R1702&amp;from=FR\">R\u00e8glement d\u00e9l\u00e9gu\u00e9 (UE) 2019\/1702 du 1<span class=\"super\">er<\/span> ao\u00fbt 2019<\/a><\/p>\n<p><a href=\"https:\/\/eur-lex.europa.eu\/legal-content\/FR\/TXT\/HTML\/?uri=CELEX:32019R2072&amp;from=FR\">R\u00e8glement d\u2019ex\u00e9cution (UE) 2019\/2072 du 28 novembre 2019 <\/a><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-fg2ik6-04800dd47fb2af98eef1a213610f5516\">\n#top .hr.hr-invisible.av-fg2ik6-04800dd47fb2af98eef1a213610f5516{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-fg2ik6-04800dd47fb2af98eef1a213610f5516 hr-invisible  avia-builder-el-40  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