{"id":4100,"date":"2021-07-26T09:15:11","date_gmt":"2021-07-26T07:15:11","guid":{"rendered":"https:\/\/vergersdelozere.net\/?p=4100"},"modified":"2022-01-21T12:10:30","modified_gmt":"2022-01-21T11:10:30","slug":"zeuzere-du-poirier","status":"publish","type":"post","link":"https:\/\/vergersdelozere.net\/index.php\/2021\/07\/26\/zeuzere-du-poirier\/","title":{"rendered":"Zeuz\u00e8re du Pommier"},"content":{"rendered":"\t\t
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De son vrai nom Zeuzera pyrina<\/em><\/strong>, elle est \u00e9galement appel\u00e9e \u00ab la Zeuz\u00e8re du pommier \u00bb, \u00ab la Zeuz\u00e8re du poirier \u00bb, \u00ab la Zeuz\u00e8re du grenadier \u00bb, \u00ab la Zeuz\u00e8re du marronnier \u00bb, voire  \u00ab la Coquette \u00bb.<\/p>\n

Il s\u2019agit d\u2019un grand insecte l\u00e9pidopt\u00e8re (papillon de nuit) de la famille des cossid\u00e9s (Cossidae<\/em><\/strong>) dont les ailes sont blanches, d\u00e9cor\u00e9es de taches bleues noir\u00e2tres. Sa chenille xylophage se nourrit du bois des arbres fruitiers, ou d\u00e9coratifs.<\/p>\n

En promenade chez Alexandre, au mas de Lasfons, alors que nous venions le matin m\u00eame de parler des ravages que cette bestiole pouvait occasionner aux troncs de nos jeunes arbres fruitiers, nous avons eu l\u2019occasion assez exceptionnelle de pouvoir l\u2019observer en train de pondre (photo n\u00b0 1) sur un jeune pommier.<\/p>\n

Gr\u00e2ce \u00e0 son organe ovipositeur  (photo n\u00b0 2) la femelle peut pondre, au travers de l\u2019\u00e9corce, un \u0153uf d\u2019environ un millim\u00e8tre dans un tronc jeune, ou dans une branche. Chaque femelle peut pondre jusqu\u2019\u00e0 mille \u0153ufs, ce qui en fait un ennemi redoutable pour la flore en g\u00e9n\u00e9ral et pour les arbres du verger en particulier !<\/p>\n

Quasiment impossible \u00e0 rep\u00e9rer, le trou d\u2019entr\u00e9e (photo n\u00b0 3) n\u2019attire pas le regard. L\u2019\u0153uf devient rapidement une chenille jaune \u00e0 points noirs (photo n\u00b0 4), qui se nourrit de l\u2019arbre qui l\u2019abrite. Cette redoutable chenille peut atteindre facilement six centim\u00e8tres de longueur. Lorsqu\u2019elle a atteint sa maturit\u00e9 elle se transforme en chrysalide et un nouveau papillon va na\u00eetre au printemps suivant.<\/p>\n

Les d\u00e9g\u00e2ts caus\u00e9s aux arbres peuvent \u00eatre consid\u00e9rables (photo n\u00b0 5). Ils ne sont pas visibles au premier coup d\u2019\u0153il, mais une esp\u00e8ce de sciure \u00e9manant de la galerie peut \u00eatre rep\u00e9r\u00e9e au pied de l\u2019arbre h\u00f4te. Relativement rapidement on peut constater que l\u2019\u00e9corce semble avoir subi le gel en plein \u00e9t\u00e9 et que cela sonne le creux quand on tape sur l\u2019endroit sec. Il faut alors \u00ab nettoyer \u00bb l\u2019endroit avec une serpette ou un greffoir, appliquer quelques feuilles de consoude sous un pansement r\u00e9alis\u00e9 \u00e0 base d\u2019argile, de bouse de vache et d\u2019eau, puis prot\u00e9ger par de la gaze ou autre tissu fix\u00e9 pr\u00e9cautionneusement. La cicatrisation peut permettre de ne pas hypoth\u00e9quer la vie de l\u2019arbre qui a \u00e9t\u00e9 attaqu\u00e9 (photo n\u00b0 6)<\/p>\n

Si on s\u2019est rendu compte du probl\u00e8me en amont, il peut \u00eatre possible de tuer la chenille en introduisant un fil de fer profond\u00e9ment dans la galerie qu\u2019elle a creus\u00e9e et essayer de \u00ab r\u00e9parer \u00bb comme indiqu\u00e9 ci-dessus.<\/p>\n

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Jacky Brard, pour Vergers de Loz\u00e8re, le 5 ao\u00fbt 2021.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Photos\u00a0: Jacky Brard, Patrick Maurin, Alexandre Racani\u00e8re<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t

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Observation lors de la visite des vergers d'Alexandre le 25 juillet 2021<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"

De son vrai nom Zeuzera pyrina, elle est \u00e9galement appel\u00e9e \u00ab\u00a0la Zeuz\u00e8re du pommier\u00a0\u00bb, \u00ab\u00a0la Zeuz\u00e8re du poirier\u00a0\u00bb, \u00ab\u00a0la Zeuz\u00e8re du grenadier\u00a0\u00bb, \u00ab\u00a0la Zeuz\u00e8re du marronnier\u00a0\u00bb, voire \u00a0\u00ab la Coquette\u00a0\u00bb. Il s\u2019agit d\u2019un grand insecte l\u00e9pidopt\u00e8re (papillon de nuit) de la famille des cossid\u00e9s (Cossidae) dont les ailes sont blanches, d\u00e9cor\u00e9es de taches bleues noir\u00e2tres. […]<\/p>\n","protected":false},"author":1,"featured_media":4108,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ocean_post_layout":"","ocean_both_sidebars_style":"","ocean_both_sidebars_content_width":0,"ocean_both_sidebars_sidebars_width":0,"ocean_sidebar":"0","ocean_second_sidebar":"0","ocean_disable_margins":"enable","ocean_add_body_class":"","ocean_shortcode_before_top_bar":"","ocean_shortcode_after_top_bar":"","ocean_shortcode_before_header":"","ocean_shortcode_after_header":"","ocean_has_shortcode":"","ocean_shortcode_after_title":"","ocean_shortcode_before_footer_widgets":"","ocean_shortcode_after_footer_widgets":"","ocean_shortcode_before_footer_bottom":"","ocean_shortcode_after_footer_bottom":"","ocean_display_top_bar":"default","ocean_display_header":"default","ocean_header_style":"","ocean_center_header_left_menu":"0","ocean_custom_header_template":"0","ocean_custom_logo":0,"ocean_custom_retina_logo":0,"ocean_custom_logo_max_width":0,"ocean_custom_logo_tablet_max_width":0,"ocean_custom_logo_mobile_max_width":0,"ocean_custom_logo_max_height":0,"ocean_custom_logo_tablet_max_height":0,"ocean_custom_logo_mobile_max_height":0,"ocean_header_custom_menu":"0","ocean_menu_typo_font_family":"0","ocean_menu_typo_font_subset":"","ocean_menu_typo_font_size":0,"ocean_menu_typo_font_size_tablet":0,"ocean_menu_typo_font_size_mobile":0,"ocean_menu_typo_font_size_unit":"px","ocean_menu_typo_font_weight":"","ocean_menu_typo_font_weight_tablet":"","ocean_menu_typo_font_weight_mobile":"","ocean_menu_typo_transform":"","ocean_menu_typo_transform_tablet":"","ocean_menu_typo_transform_mobile":"","ocean_menu_typo_line_height":0,"ocean_menu_typo_line_height_tablet":0,"ocean_menu_typo_line_height_mobile":0,"ocean_menu_typo_line_height_unit":"","ocean_menu_typo_spacing":0,"ocean_menu_typo_spacing_tablet":0,"ocean_menu_typo_spacing_mobile":0,"ocean_menu_typo_spacing_unit":"","ocean_menu_link_color":"","ocean_menu_link_color_hover":"","ocean_menu_link_color_active":"","ocean_menu_link_background":"","ocean_menu_link_hover_background":"","ocean_menu_link_active_background":"","ocean_menu_social_links_bg":"","ocean_menu_social_hover_links_bg":"","ocean_menu_social_links_color":"","ocean_menu_social_hover_links_color":"","ocean_disable_title":"default","ocean_disable_heading":"default","ocean_post_title":"","ocean_post_subheading":"","ocean_post_title_style":"","ocean_post_title_background_color":"","ocean_post_title_background":0,"ocean_post_title_bg_image_position":"","ocean_post_title_bg_image_attachment":"","ocean_post_title_bg_image_repeat":"","ocean_post_title_bg_image_size":"","ocean_post_title_height":0,"ocean_post_title_bg_overlay":0.5,"ocean_post_title_bg_overlay_color":"","ocean_disable_breadcrumbs":"default","ocean_breadcrumbs_color":"","ocean_breadcrumbs_separator_color":"","ocean_breadcrumbs_links_color":"","ocean_breadcrumbs_links_hover_color":"","ocean_display_footer_widgets":"default","ocean_display_footer_bottom":"default","ocean_custom_footer_template":"0","ocean_post_oembed":"","ocean_post_self_hosted_media":"","ocean_post_video_embed":"","ocean_link_format":"","ocean_link_format_target":"self","ocean_quote_format":"","ocean_quote_format_link":"post","ocean_gallery_link_images":"off","ocean_gallery_id":[],"footnotes":""},"categories":[37,39,34],"tags":[],"class_list":["post-4100","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-arboriculture-faire","category-botanique","category-glossaire","entry","has-media"],"acf":[],"_links":{"self":[{"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/posts\/4100"}],"collection":[{"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/comments?post=4100"}],"version-history":[{"count":33,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/posts\/4100\/revisions"}],"predecessor-version":[{"id":4178,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/posts\/4100\/revisions\/4178"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/media\/4108"}],"wp:attachment":[{"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/media?parent=4100"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/categories?post=4100"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/vergersdelozere.net\/index.php\/wp-json\/wp\/v2\/tags?post=4100"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}