{"id":3746,"date":"2017-01-09T15:44:56","date_gmt":"2017-01-09T14:44:56","guid":{"rendered":"https:\/\/www.fredonoccitanie.com\/surveillance\/?page_id=3746"},"modified":"2024-02-23T12:20:02","modified_gmt":"2024-02-23T11:20:02","slug":"le-cynips-du-chataignier","status":"publish","type":"page","link":"https:\/\/www.fredonoccitanie.com\/surveillance\/foret\/le-cynips-du-chataignier\/","title":{"rendered":"Le Cynips du ch\u00e2taignier"},"content":{"rendered":"<div id='av_section_1'  class='avia-section av-2irjgtu-a9502d73bec23a9e8b369f83e0391620 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-3746'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2gj4vky-f2363c60a603ca734bf04b404cbd04f8\">\n.flex_column.av-2gj4vky-f2363c60a603ca734bf04b404cbd04f8{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2gj4vky-f2363c60a603ca734bf04b404cbd04f8 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-2ei5ryq-63b34f7866f376c2a2249e389e5b7789 '   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-2dzkmgi-7702dabb2862bc2a0f789a01e6e9f27f\">\n.flex_column.av-2dzkmgi-7702dabb2862bc2a0f789a01e6e9f27f{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2dzkmgi-7702dabb2862bc2a0f789a01e6e9f27f 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'     ><p><div  class='avia-slideshow av-kruepd3c-eb4b9adb8631f17078a7cb01fcd2ef45 avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-4  el_before_av_textblock  avia-builder-el-first  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: 75%;'><li  class='avia-slideshow-slide av-kruepd3c-eb4b9adb8631f17078a7cb01fcd2ef45__0  slide-1 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-3843 avia-img-lazy-loading-not-3843\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-scaled.jpg\" width=\"2560\" height=\"1920\" title='Torymus sinensis attaquant les galles' alt='Torymus sinensis attaquant les galles'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-scaled.jpg 2560w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-2048x1536.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/castanea_cynips-2-1-705x529.jpg 705w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-kruepd3c-eb4b9adb8631f17078a7cb01fcd2ef45__1  slide-2 slide-even'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4223 avia-img-lazy-loading-not-4223\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/adultes-cynips.jpg\" width=\"768\" height=\"512\" title='adultes cynips' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/adultes-cynips.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/adultes-cynips-300x200.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/adultes-cynips-705x470.jpg 705w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-kruepd3c-eb4b9adb8631f17078a7cb01fcd2ef45__2  slide-3 slide-odd'><div data-rel='slideshow-1' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4225 avia-img-lazy-loading-not-4225\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF.jpg\" width=\"1944\" height=\"1452\" title='galle sur feuille et bourgeon (2)_GF' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF.jpg 1944w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-300x224.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1030x769.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-768x574.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1536x1147.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1500x1120.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-705x527.jpg 705w\" sizes=\"(max-width: 1944px) 100vw, 1944px\" \/><\/div><\/li><\/ul><div class='avia-slideshow-arrows avia-slideshow-controls' ><a href='#prev' class='prev-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='left-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Pr\u00e9c\u00e9dent\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-1' aria-describedby='av-svg-desc-1' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-1'>Pr\u00e9c\u00e9dent<\/title>\n<desc id='av-svg-desc-1'>Pr\u00e9c\u00e9dent<\/desc>\n<path d=\"M14.464 27.84q0.832 0.832 0 1.536-0.832 0.832-1.536 0l-12.544-12.608q-0.768-0.768 0-1.6l12.544-12.608q0.704-0.832 1.536 0 0.832 0.704 0 1.536l-11.456 11.904z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Pr\u00e9c\u00e9dent<\/span><\/a><a href='#next' class='next-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Suivant\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-2' aria-describedby='av-svg-desc-2' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-2'>Suivant<\/title>\n<desc id='av-svg-desc-2'>Suivant<\/desc>\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Suivant<\/span><\/a><\/div><div class='avia-slideshow-dots avia-slideshow-controls'><a href='#1' class='goto-slide active' >1<\/a><a href='#2' class='goto-slide ' >2<\/a><a href='#3' class='goto-slide ' >3<\/a><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2nw5ky-e8b1740c0b901a10243c0614f95214cc\">\n#top .av_textblock_section.av-2nw5ky-e8b1740c0b901a10243c0614f95214cc .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-2nw5ky-e8b1740c0b901a10243c0614f95214cc '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock bloc_infos av_inherit_color'  itemprop=\"text\" ><div class=\"vc_cta3_content-container\">\n<div class=\"vc_cta3-content\">\n<header class=\"vc_cta3-content-header\">\n<h2 class=\"vc_custom_heading\">Lettre d&rsquo;info<\/h2>\n<p><a href=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/lettre_info_cynips_2012.pdf\">Lettre d&rsquo;information Cynips 07\/2012<\/a><\/p>\n<\/header>\n<\/div>\n<\/div>\n<\/div><\/section><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2bqs3o2-3c4ffc3af4c2cb310ba88b69e0c97fc5\">\n.flex_column.av-2bqs3o2-3c4ffc3af4c2cb310ba88b69e0c97fc5{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2bqs3o2-3c4ffc3af4c2cb310ba88b69e0c97fc5 av_one_third  avia-builder-el-6  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-kruem6ka-70cc5a250e37bf144d2e9ec0b11a4c45 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p><strong>NOM VERNACULAIRE :<\/strong> Le Cynips du ch\u00e2taignier<br \/>\n<strong>AGENT PATHOGENE :<\/strong> <em>Dryocosmus kuriphilus<\/em> (Yasumatsu, 1951) ; Hym\u00e9nopt\u00e8re de la famille des Cynipidae<br \/>\n<strong>PLANTES HOTES :<\/strong> Parasite du Ch\u00e2taignier (<em>Castanea sp<\/em>.)<br \/>\n<strong>ORIGINE :<\/strong> Originaire de Chine, il a \u00e9t\u00e9 introduit au Japon, en Cor\u00e9e, dans le Sud-Est des \u00c9tats-Unis, puis en Italie en 2002<br \/>\n<strong>IMPACTS :<\/strong> <b><\/b>Formation de galles au printemps. Diminution de la croissance des rameaux, baisse de la fructification.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2a7gxki-2702b94ef6b60eec9fc273682ab1f9dd\">\n.flex_column.av-2a7gxki-2702b94ef6b60eec9fc273682ab1f9dd{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2a7gxki-2702b94ef6b60eec9fc273682ab1f9dd av_one_third  avia-builder-el-8  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-kruen4eb-5ac116be6c7642e607caeafc02fedecd\">\n#top .av_textblock_section.av-kruen4eb-5ac116be6c7642e607caeafc02fedecd .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-kruen4eb-5ac116be6c7642e607caeafc02fedecd '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock bloc_infos av_inherit_color'  itemprop=\"text\" ><h2>Ressources<\/h2>\n<p><a href=\"https:\/\/www.fredonoccitanie.com\/surveillance\/actualites\/2017\/03\/22\/cynips-du-chataignier\/\" target=\"_blank\" rel=\"noopener\">Actualit\u00e9s Cynips du ch\u00e2taignier<\/a><\/p>\n<p><a href=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/02\/cynips.pdf\" target=\"_blank\" rel=\"noopener\">Bilan de 5 ann\u00e9es de lutte contre le cynips du ch\u00e2taignier en Languedoc-Roussillon<\/a><\/p>\n<p><a href=\"https:\/\/draaf.occitanie.agriculture.gouv.fr\/IMG\/jpg\/cynips_lacher_regionlr-mp_cle02aec2.jpg\" target=\"_blank\" rel=\"noopener\">Cartographie de pr\u00e9sence de Torymus<\/a><a href=\"https:\/\/draaf.occitanie.agriculture.gouv.fr\/IMG\/jpg\/cynips_lacher_regionlr-mp_cle02aec2.jpg\" target=\"_blank\" rel=\"noopener\"> (DRAAF Occitanie)<\/a><\/p>\n<p><a href=\"https:\/\/draaf.occitanie.agriculture.gouv.fr\/Cynips-du-chataignier-Situation-et\" target=\"_blank\" rel=\"noopener\">DRAAF situation Cynips du ch\u00e2taignier en Occitanie<\/a><\/p>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-28zvcxu-162d03924e0d9099ec98dc6f3a5b120c\">\n#top .av_textblock_section.av-28zvcxu-162d03924e0d9099ec98dc6f3a5b120c .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-28zvcxu-162d03924e0d9099ec98dc6f3a5b120c '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock bloc_infos av_inherit_color'  itemprop=\"text\" ><h2>Contacts<\/h2>\n<p><a href=\"https:\/\/www.fredonoccitanie.com\/nous-contacter\/\">Mr Nicolas ANDRE<\/a><\/p>\n<\/div><\/section><\/p><\/div>\n\n<\/div><\/div><\/main><!-- close content main element --><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" 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title='picto_surveillance'  height=\"140\" width=\"140\"  itemprop=\"thumbnailUrl\" 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=\"(max-width: 140px) 100vw, 140px\" \/><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-7cljk2-ed64b48f0a1f98d694810200c0ac1149\">\n#top .hr.hr-invisible.av-7cljk2-ed64b48f0a1f98d694810200c0ac1149{\nheight:20px;\n}\n<\/style>\n<div  class='hr av-7cljk2-ed64b48f0a1f98d694810200c0ac1149 hr-invisible  avia-builder-el-15  el_after_av_image  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-20mn3f6-8ce412a38eebe57a7a68f2b456ba9b32\">\n#top .flex_column.av-20mn3f6-8ce412a38eebe57a7a68f2b456ba9b32{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n.flex_column.av-20mn3f6-8ce412a38eebe57a7a68f2b456ba9b32{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n.responsive #top #wrap_all .flex_column.av-20mn3f6-8ce412a38eebe57a7a68f2b456ba9b32{\nmargin-top:0px;\nmargin-bottom:0px;\n}\n<\/style>\n<div  class='flex_column av-20mn3f6-8ce412a38eebe57a7a68f2b456ba9b32 av_two_third  avia-builder-el-16  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-1y5wv4y-69df7695643a17c60c11eb2078eff945\">\n#top .hr.hr-invisible.av-1y5wv4y-69df7695643a17c60c11eb2078eff945{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-1y5wv4y-69df7695643a17c60c11eb2078eff945 hr-invisible  avia-builder-el-17  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-1wo5un6-3cac065a6f7a7829d2bb683df7e3c6af\">\n#top .av_textblock_section.av-1wo5un6-3cac065a6f7a7829d2bb683df7e3c6af .avia_textblock{\ncolor:#ffffff;\n}\n<\/style>\n<section  class='av_textblock_section av-1wo5un6-3cac065a6f7a7829d2bb683df7e3c6af '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock av_inherit_color'  itemprop=\"text\" ><h5 style=\"text-align: left\">Le <strong>Cynips du Ch\u00e2taigner<\/strong> est un insecte hym\u00e9nopt\u00e8re de petite taille (&lt;3mm) de la famille des Cynipidae appartenant au genre <em>Dryocosmus<\/em>. Originaire de Chine, il est aujourd\u2019hui largement pr\u00e9sent sur le territoire fran\u00e7ais.<\/h5>\n<\/div><\/section><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-21pz0i-d096ee642f5e8fc103974b6a357bc0c1\">\n#top .hr.hr-invisible.av-21pz0i-d096ee642f5e8fc103974b6a357bc0c1{\nheight:30px;\n}\n<\/style>\n<div  class='hr av-21pz0i-d096ee642f5e8fc103974b6a357bc0c1 hr-invisible  avia-builder-el-19  el_after_av_textblock  avia-builder-el-last '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/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-1ug1jrm-f85d079f534570e7b502e473e72e76a4\">\n.avia-section.av-1ug1jrm-f85d079f534570e7b502e473e72e76a4{\nbackground-color:#dbdbcf;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_3'  class='avia-section av-1ug1jrm-f85d079f534570e7b502e473e72e76a4 main_color avia-section-default avia-no-border-styling  avia-builder-el-20  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-3746'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1svkl1e-f49f8eace8f943ccaa1ad6b48a15b3d0\">\n.flex_column.av-1svkl1e-f49f8eace8f943ccaa1ad6b48a15b3d0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1svkl1e-f49f8eace8f943ccaa1ad6b48a15b3d0 av_one_half  avia-builder-el-21  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-1ry4g9u-dc80970bf18b1cc274331d3a61153eb1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div class=\"column-1_2 sc_column_item sc_column_item_1 odd first\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<p style=\"text-align: justify\">Le <strong>Cynips du Ch\u00e2taigner<\/strong> est un insecte hym\u00e9nopt\u00e8re de petite taille (&lt;3mm) de la famille des Cynipidae appartenant au genre <em>Dryocosmus<\/em>. Originaire de Chine, il est aujourd\u2019hui largement pr\u00e9sent sur le territoire fran\u00e7ais.<\/p>\n<p style=\"text-align: justify\">Les larves de ce ravageur ont pour particularit\u00e9 de provoquer des <strong>galles sur les plantes infest\u00e9es<\/strong>. L\u2019insecte adulte pond dans les bourgeons pendant la phase de v\u00e9g\u00e9tation, puis les larves hivernent dans les bourgeons dormants sans que l\u2019on ne d\u00e9tecte de sympt\u00f4mes. Au printemps, les larves reprennent leur d\u00e9veloppement et provoquent la formation de galles. Au d\u00e9but de l\u2019\u00e9t\u00e9, les larves ayant atteint le stade adulte quittent les galles pour recommencer un nouveau cycle de ponte.<\/p>\n<p style=\"text-align: justify\">L\u2019insecte ressemble \u00e0 une petite gu\u00eape de quelques millim\u00e8tres de long, au corps noir, brillant. Son identification peut parfois \u00eatre d\u00e9licate car il peut \u00eatre confondu avec d\u2019autres hym\u00e9nopt\u00e8res. Il convient de bien observer les mandibules, la base des antennes et des pattes, qui sont de couleur brune \u00e0 brun-jaun\u00e2tre.<\/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-1qud4hu-57f7e356e8f5ca42d20bb6afc4b4248e\">\n.flex_column.av-1qud4hu-57f7e356e8f5ca42d20bb6afc4b4248e{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1qud4hu-57f7e356e8f5ca42d20bb6afc4b4248e av_one_half  avia-builder-el-23  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  '     ><style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1o5dtrm-5c9a3b4e4d16365c79dca51cd7b4cf68\">\n.avia-image-container.av-1o5dtrm-5c9a3b4e4d16365c79dca51cd7b4cf68 img.avia_image{\nbox-shadow:none;\n}\n.avia-image-container.av-1o5dtrm-5c9a3b4e4d16365c79dca51cd7b4cf68 .av-caption-image-overlay-bg{\nopacity:0.4;\n}\n.avia-image-container.av-1o5dtrm-5c9a3b4e4d16365c79dca51cd7b4cf68 .av-image-caption-overlay-center{\ncolor:#ffffff;\nfont-size:14px;\n}\n<\/style>\n<div  class='avia-image-container av-1o5dtrm-5c9a3b4e4d16365c79dca51cd7b4cf68 av-styling-no-styling avia-align-center  avia-builder-el-24  avia-builder-el-no-sibling  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-3929 avia-img-lazy-loading-not-3929 avia_image ' src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-773x1030.jpg\" alt='Ch\u00e2taignier contamin\u00e9 (feuilles et galles s\u00e8ches sur les rameaux)' title='Ch\u00e2taignier contamin\u00e9 (feuilles et galles s\u00e8ches sur les rameaux)'  height=\"1030\" width=\"773\"  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-773x1030.jpg 773w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-225x300.jpg 225w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-768x1024.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-1152x1536.jpg 1152w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-1125x1500.jpg 1125w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips-529x705.jpg 529w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/chataigner-contamine-cynips.jpg 1536w\" sizes=\"(max-width: 773px) 100vw, 773px\" \/><\/div><\/div><\/div><\/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-1m66dte-66b7105323af0a8e1415cc270d7c50fc\">\n.avia-section.av-1m66dte-66b7105323af0a8e1415cc270d7c50fc{\nbackground-color:#f8ead4;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_4'  class='avia-section av-1m66dte-66b7105323af0a8e1415cc270d7c50fc main_color avia-section-default avia-no-border-styling  avia-builder-el-25  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-3746'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1khe0ya-d1f0db0b5e3a9f7a778eb145e07dbb65\">\n.flex_column.av-1khe0ya-d1f0db0b5e3a9f7a778eb145e07dbb65{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1khe0ya-d1f0db0b5e3a9f7a778eb145e07dbb65 av_one_full  avia-builder-el-26  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-1jbhboi-f44c258c39874273144436c4c49b5b48 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h2 style=\"text-align: center\"><strong>R\u00e9partition du ravageur<\/strong><\/h2>\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<p style=\"text-align: justify\">Le Cynips du ch\u00e2taigner a un pouvoir de dispersion a\u00e9rien fort. Il a \u00e9t\u00e9 rapport\u00e9 que les adultes de <em>Dryocosmus kuriphilus<\/em> peuvent parcourir jusqu\u2019\u00e0 25 km pour \u00e9tablir un nouveau site de ponte, ce qui rend le pouvoir de dispersion de ce ravageur \u00e9lev\u00e9. Il\u00a0 est \u00e9mergent sur le territoire fran\u00e7ais depuis sa d\u00e9tection dans les Alpes maritimes en 2007, puis en Ard\u00e8che (principal bassin de production fran\u00e7ais) en 2010. On suppose que cet insecte est arriv\u00e9 sur le territoire par l\u2019importation de mat\u00e9riel contamin\u00e9, notamment d\u2019Italie o\u00f9 sa pr\u00e9sence dans le bassin de production de Coni a \u00e9t\u00e9 rapport\u00e9e d\u00e8s 2002. En Languedoc-Roussillon, les foyers sont nombreux dans les 5 d\u00e9partements.<\/p>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1ihyfsi-588353002405515b8e684fd5604b622d\">\n.flex_column.av-1ihyfsi-588353002405515b8e684fd5604b622d{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0;\n}\n<\/style>\n<div  class='flex_column av-1ihyfsi-588353002405515b8e684fd5604b622d av_one_half  avia-builder-el-28  el_after_av_one_full  el_before_av_one_half  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-1bfbk2q-4a16b68b795cb9f36d53577c25a28d1f '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_3844\" style=\"width: 570px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3844\" class=\"size-full wp-image-3844\" src=\"..\/wp-content\/uploads\/sites\/4\/2017\/01\/97c4f29c0a3bdb5a0a193c6709562d30.jpg\" alt=\"Extension des foyers de cynips du ch\u00e2taignier en France (2007 \u00e0 2013) \u00a9 Inra\" width=\"560\" height=\"439\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/97c4f29c0a3bdb5a0a193c6709562d30.jpg 560w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/97c4f29c0a3bdb5a0a193c6709562d30-300x235.jpg 300w\" sizes=\"auto, (max-width: 560px) 100vw, 560px\" \/><p id=\"caption-attachment-3844\" class=\"wp-caption-text\">Extension des foyers de cynips du ch\u00e2taignier en France (2007 \u00e0 2013) \u00a9 Inra<\/p><\/div>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-1cpkxs2-672ff3c157c904894e459ff62d3861f7\">\n.flex_column.av-1cpkxs2-672ff3c157c904894e459ff62d3861f7{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-1cpkxs2-672ff3c157c904894e459ff62d3861f7 av_one_half  avia-builder-el-30  el_after_av_one_half  avia-builder-el-last  flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-krueykhh-42636a90803e2240902b678d94f75298 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><div id=\"attachment_3836\" style=\"width: 2570px\" class=\"wp-caption alignleft\"><img loading=\"lazy\" decoding=\"async\" aria-describedby=\"caption-attachment-3836\" class=\"size-full wp-image-3836\" src=\"..\/wp-content\/uploads\/sites\/4\/2017\/01\/Region_oc-scaled.jpeg\" alt=\"Cynips et Torymus en Languedoc-Roussillon\" width=\"2560\" height=\"1810\" \/><p id=\"caption-attachment-3836\" class=\"wp-caption-text\">Cynips et Torymus en Languedoc-Roussillon<\/p><\/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-s0ugb6-cd0e27dc7c8c636c046513202cc94208 main_color avia-section-default avia-no-border-styling  avia-builder-el-32  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-3746'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-pmpo82-69cf9714117d36dc4069a7f1670f81f9\">\n.flex_column.av-pmpo82-69cf9714117d36dc4069a7f1670f81f9{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-pmpo82-69cf9714117d36dc4069a7f1670f81f9 av_one_full  avia-builder-el-33  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-o0per6-39176a2bfacfab900541fc3aa6db332b '   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-n5iide-036dfb2826b28ff40d6f63780efe4f40\">\n.flex_column.av-n5iide-036dfb2826b28ff40d6f63780efe4f40{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 10%;\n}\n<\/style>\n<div  class='flex_column av-n5iide-036dfb2826b28ff40d6f63780efe4f40 av_one_half  avia-builder-el-35  el_after_av_one_full  el_before_av_one_half  first flex_column_div  column-top-margin'     ><section  class='av_textblock_section av-20mqz6-1721bee17d221a26dd62b30a1b95c1d1 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><p>Le Cynips du Ch\u00e2taigner est consid\u00e9r\u00e9 comme le ravageur le plus important pour cette culture. Les larves de <em>Dyocosmus kuriphilus <\/em>provoquent des <strong>galles sur les rameaux parasit\u00e9s <\/strong>par la s\u00e9cr\u00e9tion de toxines. On observe alors au printemps des <strong>galles oviformes<\/strong>, d\u2019une taille pouvant atteindre les 25mm, de couleur verte teint\u00e9e de rose sur les jeunes pousses, les petioles ou encore sur les limbes au niveau de la nervure centrale. Des <strong>d\u00e9formations foliaires<\/strong> marqu\u00e9es apparaissent, et on note une <strong>perte de vigueur importante<\/strong> de l\u2019arbre avec une d\u00e9veloppement fortement limit\u00e9 des jeunes rameaux (<strong>pousses tr\u00e8s courtes<\/strong>, <strong>faible \u00e9mission foliaire<\/strong>). Ce parasite entraine une diminution de la fructification importante selon le stade d\u2019infestation de l\u2019arbre, et peut conduire \u00e0 des <strong>baisses de rendement de l\u2019ordre de 60 \u00e0 80%<\/strong>, et m\u00eame causer le d\u00e9p\u00e9rissement puis la<strong> mort des arbres parasit\u00e9s<\/strong>.<\/p>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-hua2v6-1d5b23af3196af489f37723f6a427a05\">\n.flex_column.av-hua2v6-1d5b23af3196af489f37723f6a427a05{\nborder-radius:0px 0px 0px 0px;\npadding:0px 10% 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-hua2v6-1d5b23af3196af489f37723f6a427a05 av_one_half  avia-builder-el-37  el_after_av_one_half  el_before_av_one_fourth  flex_column_div  column-top-margin'     ><div  class='avia-slideshow av-kruf7d73-44dccc0cf192e9f809408a1656e62591 avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-38  avia-builder-el-no-sibling  av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-2' 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: 75%;'><li  class='avia-slideshow-slide av-kruf7d73-44dccc0cf192e9f809408a1656e62591__0  slide-1 slide-odd'><div data-rel='slideshow-2' class='avia-slide-wrap '  title='Galles sur bourgeons et feuilles' ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-3930 avia-img-lazy-loading-not-3930\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-scaled.jpg\" width=\"2560\" height=\"1920\" title='Galles sur bourgeons et feuilles' alt='Galles sur bourgeons et feuilles'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-scaled.jpg 2560w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-2048x1536.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-cynips-2-705x529.jpg 705w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-kruf7d73-44dccc0cf192e9f809408a1656e62591__1  slide-2 slide-even'><div data-rel='slideshow-2' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-3393 avia-img-lazy-loading-not-3393\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2016\/11\/cynips2.jpg\" width=\"347\" height=\"373\" title='cynips2' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2016\/11\/cynips2.jpg 347w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2016\/11\/cynips2-279x300.jpg 279w\" sizes=\"(max-width: 347px) 100vw, 347px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-kruf7d73-44dccc0cf192e9f809408a1656e62591__3  slide-3 slide-odd'><div data-rel='slideshow-2' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4226 avia-img-lazy-loading-not-4226\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF.jpg\" width=\"2048\" height=\"1536\" title='galle sur bourgeon_GF' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-bourgeon_GF-705x529.jpg 705w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-kruf7d73-44dccc0cf192e9f809408a1656e62591__4  slide-4 slide-even'><div data-rel='slideshow-2' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4225 avia-img-lazy-loading-not-4225\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF.jpg\" width=\"1944\" height=\"1452\" title='galle sur feuille et bourgeon (2)_GF' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF.jpg 1944w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-300x224.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1030x769.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-768x574.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1536x1147.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-1500x1120.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/galle-sur-feuille-et-bourgeon-2_GF-705x527.jpg 705w\" sizes=\"(max-width: 1944px) 100vw, 1944px\" \/><\/div><\/li><\/ul><div class='avia-slideshow-arrows avia-slideshow-controls' ><a href='#prev' class='prev-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='left-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Pr\u00e9c\u00e9dent\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-3' aria-describedby='av-svg-desc-3' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-3'>Pr\u00e9c\u00e9dent<\/title>\n<desc id='av-svg-desc-3'>Pr\u00e9c\u00e9dent<\/desc>\n<path d=\"M14.464 27.84q0.832 0.832 0 1.536-0.832 0.832-1.536 0l-12.544-12.608q-0.768-0.768 0-1.6l12.544-12.608q0.704-0.832 1.536 0 0.832 0.704 0 1.536l-11.456 11.904z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Pr\u00e9c\u00e9dent<\/span><\/a><a href='#next' class='next-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Suivant\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-4' aria-describedby='av-svg-desc-4' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-4'>Suivant<\/title>\n<desc id='av-svg-desc-4'>Suivant<\/desc>\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Suivant<\/span><\/a><\/div><div class='avia-slideshow-dots avia-slideshow-controls'><a href='#1' class='goto-slide active' >1<\/a><a href='#2' class='goto-slide ' >2<\/a><a href='#3' class='goto-slide ' >3<\/a><a href='#4' class='goto-slide ' >4<\/a><\/div><\/div><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-60fd02-4e0b4c61178a818285df03578df62a3a\">\n.flex_column.av-60fd02-4e0b4c61178a818285df03578df62a3a{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-60fd02-4e0b4c61178a818285df03578df62a3a av_one_fourth  avia-builder-el-39  el_after_av_one_half  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-3sx4vm-0dc2c10df9812fc09a4dea9bd8d69866\">\n.flex_column.av-3sx4vm-0dc2c10df9812fc09a4dea9bd8d69866{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-3sx4vm-0dc2c10df9812fc09a4dea9bd8d69866 av_one_half  avia-builder-el-40  el_after_av_one_fourth  el_before_av_one_fourth  flex_column_div av-zero-column-padding  column-top-margin'     ><article  class='iconbox iconbox_top av-2t4rpe-af04dc5f13ecc5743bb2f446a2002e35  avia-builder-el-41  avia-builder-el-no-sibling  main_color'  itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class=\"iconbox_content\"><header class=\"entry-content-header\" aria-label=\"Ic\u00f4ne : \"><div class='iconbox_icon heading-color avia-iconfont avia-font-entypo-fontello' data-av_icon='\ue81f' data-av_iconfont='entypo-fontello'  ><\/div><\/header><div class='iconbox_content_container '  itemprop=\"text\" ><h5 style=\"text-align: center\"><strong>Que faire si j\u2019observe des sympt\u00f4mes de la pr\u00e9sence de ce ravageur ?<\/strong><\/h5>\n<p style=\"text-align: center\">Dans le cas d\u2019observation de sympt\u00f4mes de la pr\u00e9sence de ce ravageur, vous pouvez le <strong>signaler<\/strong><strong> aux services comp\u00e9tents<\/strong> : au <strong>Service R\u00e9gional de l\u2019Alimentation<\/strong> (SRAL) ou aux <strong>F\u00e9d\u00e9rations de Lutte contre les Organismes Nuisibles<\/strong> (FREDON et FDGDON).<\/p>\n<\/div><\/div><footer class=\"entry-footer\"><\/footer><\/article><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-2fjfyq-745d4237b187fa98b5c5113fa2ab8aab\">\n.flex_column.av-2fjfyq-745d4237b187fa98b5c5113fa2ab8aab{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-2fjfyq-745d4237b187fa98b5c5113fa2ab8aab av_one_fourth  avia-builder-el-42  el_after_av_one_half  avia-builder-el-last  flex_column_div av-zero-column-padding  column-top-margin'     ><\/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-wc60lu-4a43fab3c85734c7e7057c193798dcb1\">\n.avia-section.av-wc60lu-4a43fab3c85734c7e7057c193798dcb1{\nbackground-color:#f8ead4;\nbackground-image:unset;\n}\n<\/style>\n<div id='av_section_6'  class='avia-section av-wc60lu-4a43fab3c85734c7e7057c193798dcb1 main_color avia-section-default avia-no-border-styling  avia-builder-el-43  el_after_av_section  el_before_av_social_share  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-3746'><div class='entry-content-wrapper clearfix'>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-u30muq-01512e50e3515ee7fd0bb24a141eb2d0\">\n.flex_column.av-u30muq-01512e50e3515ee7fd0bb24a141eb2d0{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-u30muq-01512e50e3515ee7fd0bb24a141eb2d0 av_one_full  avia-builder-el-44  el_before_av_one_half  avia-builder-el-first  first flex_column_div av-zero-column-padding  '     ><section  class='av_textblock_section av-t9yoj6-5d50abe7ef64a09d912159e78d4be02d '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock'  itemprop=\"text\" ><h1 style=\"text-align: center\">Moyens de lutte<\/h1>\n<\/div><\/section><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-rmk1si-6a83601336eed5528dce0f3bf80f9be2\">\n.flex_column.av-rmk1si-6a83601336eed5528dce0f3bf80f9be2{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-rmk1si-6a83601336eed5528dce0f3bf80f9be2 av_one_half  avia-builder-el-46  el_after_av_one_full  el_before_av_one_half  first flex_column_div av-zero-column-padding  column-top-margin'     ><p><div  class='avia-video av-krufer5y-19a19041ff3b6eb0de57d5a77aa36b3a avia-video-16-9 av-no-preview-image avia-video-load-always av-lazyload-immediate av-lazyload-video-embed'  itemprop=\"video\" itemtype=\"https:\/\/schema.org\/VideoObject\"  data-original_url='https:\/\/www.youtube.com\/watch?v=iU3LdH4rljU&amp;t=4s'><script type='text\/html' class='av-video-tmpl'><div class='avia-iframe-wrap'><iframe loading=\"lazy\" title=\"Sauvetage de la ch\u00e2taigneraie Corse : 400 torymus de plus pour lutter contre le le cynips !\" width=\"1500\" height=\"844\" src=\"https:\/\/www.youtube.com\/embed\/iU3LdH4rljU?start=4&feature=oembed&autoplay=0&loop=0&controls=1&mute=0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe><\/div><\/script><div class='av-click-to-play-overlay'><div class=\"avia_playpause_icon\"><\/div><\/div><\/div><br \/>\n\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-d7a7ea-8c58d9a1beea2943bf98114d1f3f2dbb\">\n#top .hr.hr-invisible.av-d7a7ea-8c58d9a1beea2943bf98114d1f3f2dbb{\nheight:50px;\n}\n<\/style>\n<div  class='hr av-d7a7ea-8c58d9a1beea2943bf98114d1f3f2dbb hr-invisible  avia-builder-el-48  el_after_av_video  el_before_av_slideshow '><span class='hr-inner '><span class=\"hr-inner-style\"><\/span><\/span><\/div><br \/>\n<div  class='avia-slideshow av-krufhn3x-1b04fa7b10b637c20df8621e46e79429 avia-slideshow-no scaling av_slideshow avia-slide-slider  avia-builder-el-49  el_after_av_hr  avia-builder-el-last  av-slideshow-ui av-control-default av-slideshow-manual av-loop-once av-loop-manual-endless av-default-height-applied avia-slideshow-3' 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: 75%;'><li  class='avia-slideshow-slide av-krufhn3x-1b04fa7b10b637c20df8621e46e79429__0  slide-1 slide-odd'><div data-rel='slideshow-3' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-3932 avia-img-lazy-loading-not-3932\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-scaled.jpg\" width=\"2560\" height=\"1920\" title='l\u00e2cher de torymus sinensis sur ch\u00e2taigner' alt='l\u00e2cher de torymus sinensis sur ch\u00e2taigner'  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-scaled.jpg 2560w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-2048x1536.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-lacher-705x529.jpg 705w\" sizes=\"(max-width: 2560px) 100vw, 2560px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-krufhn3x-1b04fa7b10b637c20df8621e46e79429__1  slide-2 slide-even'><div data-rel='slideshow-3' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4221 avia-img-lazy-loading-not-4221\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF.jpg\" width=\"2048\" height=\"1536\" title='torymus sinensis (6)_GF' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-6_GF-705x529.jpg 705w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/div><\/li><li  class='avia-slideshow-slide av-krufhn3x-1b04fa7b10b637c20df8621e46e79429__2  slide-3 slide-odd'><div data-rel='slideshow-3' class='avia-slide-wrap '   ><img decoding=\"async\" fetchpriority=\"high\" class=\"wp-image-4222 avia-img-lazy-loading-not-4222\"  src=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF.jpg\" width=\"2048\" height=\"1536\" title='torymus sinensis (15)_GF' alt=''  itemprop=\"thumbnailUrl\" srcset=\"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF.jpg 2048w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-300x225.jpg 300w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-1030x773.jpg 1030w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-768x576.jpg 768w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-1536x1152.jpg 1536w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-1500x1125.jpg 1500w, https:\/\/www.fredonoccitanie.com\/surveillance\/wp-content\/uploads\/sites\/4\/2017\/01\/torymus-sinensis-15_GF-705x529.jpg 705w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><\/div><\/li><\/ul><div class='avia-slideshow-arrows avia-slideshow-controls' ><a href='#prev' class='prev-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='left-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Pr\u00e9c\u00e9dent\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-5' aria-describedby='av-svg-desc-5' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-5'>Pr\u00e9c\u00e9dent<\/title>\n<desc id='av-svg-desc-5'>Pr\u00e9c\u00e9dent<\/desc>\n<path d=\"M14.464 27.84q0.832 0.832 0 1.536-0.832 0.832-1.536 0l-12.544-12.608q-0.768-0.768 0-1.6l12.544-12.608q0.704-0.832 1.536 0 0.832 0.704 0 1.536l-11.456 11.904z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Pr\u00e9c\u00e9dent<\/span><\/a><a href='#next' class='next-slide  avia-svg-icon avia-font-svg_entypo-fontello' data-av_svg_icon='right-open-big' data-av_iconset='svg_entypo-fontello' tabindex='-1' title=\"Suivant\"><svg version=\"1.1\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"15\" height=\"32\" viewBox=\"0 0 15 32\" preserveAspectRatio=\"xMidYMid meet\" aria-labelledby='av-svg-title-6' aria-describedby='av-svg-desc-6' role=\"graphics-symbol\" aria-hidden=\"true\">\n<title id='av-svg-title-6'>Suivant<\/title>\n<desc id='av-svg-desc-6'>Suivant<\/desc>\n<path d=\"M0.416 27.84l11.456-11.84-11.456-11.904q-0.832-0.832 0-1.536 0.832-0.832 1.536 0l12.544 12.608q0.768 0.832 0 1.6l-12.544 12.608q-0.704 0.832-1.536 0-0.832-0.704 0-1.536z\"><\/path>\n<\/svg><span class='avia_hidden_link_text'>Suivant<\/span><\/a><\/div><div class='avia-slideshow-dots avia-slideshow-controls'><a href='#1' class='goto-slide active' >1<\/a><a href='#2' class='goto-slide ' >2<\/a><a href='#3' class='goto-slide ' >3<\/a><\/div><\/div><\/p><\/div>\n<style type=\"text\/css\" data-created_by=\"avia_inline_auto\" id=\"style-css-av-ociv42-793ff2da3f4996d2e4cf4cc6ccf098d4\">\n.flex_column.av-ociv42-793ff2da3f4996d2e4cf4cc6ccf098d4{\nborder-radius:0px 0px 0px 0px;\npadding:0px 0px 0px 0px;\n}\n<\/style>\n<div  class='flex_column av-ociv42-793ff2da3f4996d2e4cf4cc6ccf098d4 av_one_half  avia-builder-el-50  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-mqebbm-7eefae443f5a84ceb2d697e21944a032 '   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>La lutte chimique est r\u00e9put\u00e9e co\u00fbteuse et inefficace pour lutter contre ce ravageur. La lutte m\u00e9canique consiste \u00e0 enlever les rameaux atteints par l\u2019insecte, mais ne peut concerner que de tr\u00e8s petits foyers pour \u00eatre r\u00e9ellement efficace. Des recherches sont \u00e9galement en cours pour identifier des vari\u00e9t\u00e9s r\u00e9sistantes ou tol\u00e9rantes au Cynips du ch\u00e2taigner. A ce jour, les m\u00e9thodes de lutte \u00e0 privil\u00e9gier en plantation d\u00e9j\u00e0 \u00e9tablie sont la prophylaxie et la lutte biologique.<\/p>\n<h5><strong>Prophylaxie<\/strong><\/h5>\n<p>Le meilleur moyen de lutter contre ce parasite est de prendre des mesures de lutte pr\u00e9ventive, en particulier \u00e9viter les importations de plants contamin\u00e9s (notamment de r\u00e9gions reconnues comme contamin\u00e9es).<\/p>\n<\/div>\n<\/div>\n<div class=\"columns_wrap sc_columns columns_nofluid sc_columns_count_2\">\n<div class=\"column-1_2 sc_column_item sc_column_item_1 odd first\">\n<div class=\"wpb_text_column wpb_content_element \">\n<div class=\"wpb_wrapper\">\n<h5><strong>Lutte biologique<\/strong><\/h5>\n<p>Il existe des m\u00e9thodes de lutte biologique contre ce parasite, av\u00e9r\u00e9es efficaces dans une certaine mesure pour contr\u00f4ler l\u2019infestation. Il est possible de r\u00e9aliser des l\u00e2chers de gu\u00eapes parasito\u00efdes de l\u2019esp\u00e8ce asiatique <em>Torymus sinensis<\/em>, qui est un pr\u00e9dateur naturel sp\u00e9cifique de <em>Dryocosmus kuriphilus<\/em>. Cette gu\u00eape asiatique dont l\u2019usage en lutte biologique est autoris\u00e9e en France permet de limiter le d\u00e9veloppement du Cynips du ch\u00e2taigner en parasitant les \u0153ufs et les larves de cet insecte. Ainsi, elle permet de r\u00e9guler les populations du ravageur de fa\u00e7on naturelle et efficace. Il faut compter entre 8 et 10 ans pour arriver \u00e0 un contr\u00f4le optimal du cynips par <i>Torymus sinensis<\/i>, m\u00eame si des r\u00e9sultats tr\u00e8s satisfaisants peuvent \u00eatre observ\u00e9s en 3-4 ans.\u00a0 Plusieurs l\u00e2chers ont d\u00e9j\u00e0 \u00e9t\u00e9 r\u00e9alis\u00e9s en Languedoc-Roussillon avec des r\u00e9sultats satisfaisants. si vous souhaitez en savoir plus sur la lutte biologique contre le Cynips du ch\u00e2taigner et les modalit\u00e9s de l\u00e2cher, Contactez la FREDON-LR pour plus d\u2019informations.<\/p>\n<\/div>\n<\/div>\n<\/div>\n<\/div>\n<\/div><\/section><\/div>\n<\/div><\/div><\/div><!-- close content main div --><\/div><\/div><div id='after_section_6'  class='main_color av_default_container_wrap 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-3746'><div class='entry-content-wrapper clearfix'>\n<div  class='av-social-sharing-box av-lsyk80ii-d277ad37ce5ae3d7645d91ee5ee4d840 av-social-sharing-box-default  avia-builder-el-52  el_after_av_section  avia-builder-el-no-sibling  av-social-sharing-box-fullwidth'><div class=\"av-share-box\"><h5 class='av-share-link-description av-no-toc '>Partager cette entr\u00e9e<\/h5><ul class=\"av-share-box-list noLightbox\"><li class='av-share-link av-social-link-facebook avia_social_iconfont' ><a target=\"_blank\" aria-label=\"Partager sur Facebook\" href='https:\/\/www.facebook.com\/sharer.php?u=https:\/\/www.fredonoccitanie.com\/surveillance\/foret\/le-cynips-du-chataignier\/&#038;t=Le%20Cynips%20du%20ch%C3%A2taignier' data-av_icon='\ue8f3' data-av_iconfont='entypo-fontello'  title='' data-avia-related-tooltip='Partager sur Facebook'><span class='avia_hidden_link_text'>Partager sur Facebook<\/span><\/a><\/li><li class='av-share-link av-social-link-twitter avia_social_iconfont' ><a target=\"_blank\" aria-label=\"Partager sur X\" href='https:\/\/twitter.com\/share?text=Le%20Cynips%20du%20ch%C3%A2taignier&#038;url=https:\/\/www.fredonoccitanie.com\/surveillance\/?p=3746' data-av_icon='\ue932' data-av_iconfont='entypo-fontello'  title='' data-avia-related-tooltip='Partager sur X'><span class='avia_hidden_link_text'>Partager sur X<\/span><\/a><\/li><li class='av-share-link av-social-link-linkedin avia_social_iconfont' ><a target=\"_blank\" aria-label=\"Partager sur LinkedIn\" href='https:\/\/linkedin.com\/shareArticle?mini=true&#038;title=Le%20Cynips%20du%20ch%C3%A2taignier&#038;url=https:\/\/www.fredonoccitanie.com\/surveillance\/foret\/le-cynips-du-chataignier\/' data-av_icon='\ue8fc' data-av_iconfont='entypo-fontello'  title='' data-avia-related-tooltip='Partager sur LinkedIn'><span class='avia_hidden_link_text'>Partager sur LinkedIn<\/span><\/a><\/li><li class='av-share-link av-social-link-mail avia_social_iconfont' ><a  aria-label=\"Partager par Mail\" href='mailto:?subject=Le%20Cynips%20du%20ch%C3%A2taignier&#038;body=https:\/\/www.fredonoccitanie.com\/surveillance\/foret\/le-cynips-du-chataignier\/' data-av_icon='\ue805' data-av_iconfont='entypo-fontello'  title='' data-avia-related-tooltip='Partager par Mail'><span class='avia_hidden_link_text'>Partager par Mail<\/span><\/a><\/li><\/ul><\/div><\/div>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"parent":9200,"menu_order":1,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"class_list":["post-3746","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/pages\/3746","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/comments?post=3746"}],"version-history":[{"count":5,"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/pages\/3746\/revisions"}],"predecessor-version":[{"id":11537,"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/pages\/3746\/revisions\/11537"}],"up":[{"embeddable":true,"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/pages\/9200"}],"wp:attachment":[{"href":"https:\/\/www.fredonoccitanie.com\/surveillance\/wp-json\/wp\/v2\/media?parent=3746"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}