{"id":25242,"date":"2022-10-13T14:35:23","date_gmt":"2022-10-13T12:35:23","guid":{"rendered":"https:\/\/profert.dz\/fr\/?post_type=avada_portfolio&#038;p=25242"},"modified":"2026-01-06T14:46:33","modified_gmt":"2026-01-06T13:46:33","slug":"psylle-de-lolivier","status":"publish","type":"avada_portfolio","link":"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/psylle-de-lolivier\/","title":{"rendered":"Psylle de l\u2019olivier"},"content":{"rendered":"<p><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-1 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-0 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;--awb-margin-bottom:0px;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\"><h2>Psylle de l\u2019olivier<\/h2>\n<p>Le psylle de l\u2019olivier<strong><em> \u00ab Euphyllura Olivina \u00bb <\/em><\/strong>est un ravageur fr\u00e9quent et sp\u00e9cifique de l&rsquo;olivier, \u00e0 travers le monde, en particulier dans les pays m\u00e9diterran\u00e9ens.<br \/>\n<strong><em>Euphyllura Olivina <\/em><\/strong>est un petit insecte piqueur-suceur qui cause des d\u00e9g\u00e2ts consid\u00e9rables affectant la qualit\u00e9 et la quantit\u00e9 de la production.<\/p>\n<\/div><div class=\"fusion-text fusion-text-2\"><h3 style=\"text-align: justify;\">Cycle de d\u00e9veloppement<\/h3>\n<p style=\"text-align: justify;\">Le psylle hiverne \u00e0 l\u2019\u00e9tat adulte, sur le fruit et les fissures du tronc et des branches. Au printemps, apr\u00e8s l\u2019accouplement, la femelle d\u00e9pose ses \u0153ufs sous les jeunes feuilles des bourgeons apicaux ou sous les bourgeons auxiliaires. Les \u0153ufs \u00e9closent environ 3 semaines apr\u00e8s la ponte. La femelle peut pondre environ 1000 \u0153ufs durant le cycle de vie. La ponte commence lorsque la temp\u00e9rature d\u00e9passe les 13 \u00b0C avec un optimum de ponte situ\u00e9 entre 20 et 25\u00b0C.<br \/>\nApr\u00e8s \u00e9closion la larve passe par 5 stades de d\u00e9veloppement de L1 \u00e0 L5.<br \/>\nLe Psylle de l\u2019olivier peut connaitre 2 \u00e0 3 g\u00e9n\u00e9rations par an. La troisi\u00e8me g\u00e9n\u00e9ration peut ne pas survenir, les conditions de temp\u00e9rature n\u2019\u00e9tant pas appropri\u00e9es (sup\u00e9rieures \u00e0 27 C\u00b0).<\/p>\n<h3 style=\"text-align: justify;\">Sympt\u00f4mes et d\u00e9g\u00e2ts<\/h3>\n<p style=\"text-align: justify;\">Sur les jeunes pousses : Des flocons blancs sont visibles, secr\u00e9t\u00e9s par les larves pour se prot\u00e9ger contre les pr\u00e9dateurs. Les larves ponctionnent une partie de la s\u00e8ve des jeunes pousses et s\u00e9cr\u00e8tent un miellat qui favorise le d\u00e9veloppement de la Fumagine ce qui alt\u00e8re l\u2019activit\u00e9 photosynth\u00e9tique.<br \/>\nSur grappe florale : on observe des flocons blancs, s\u00e9cr\u00e9t\u00e9s par des colonies larvaires install\u00e9es sur les boutons floraux qui peuvent entrainer leur coulure et conduire \u00e0 une r\u00e9duction importante de la production.<br \/>\nFruit : Une g\u00e9n\u00e9ration peut se d\u00e9velopper sur les jeunes fruits nou\u00e9s laissant apparaitre des ponctuations caus\u00e9es par les piq\u00fbres des larves et adultes, un flocon blanc recouvre ces jeunes fruits. Ces attaques g\u00e9n\u00e8rent une chute pr\u00e9matur\u00e9e et consid\u00e9rable des jeunes fruits.<\/p>\n<h3 style=\"text-align: justify;\">M\u00e9thodes de Lutte<\/h3>\n<p style=\"text-align: justify;\">La lutte contre le psylle de L\u2019olivier doit faire appel \u00e0 la combinaison de la prophylaxie et de la lutte chimique.<\/p>\n<p style=\"text-align: justify;\"><strong>La prophylaxie :<\/strong><br \/>\n\u2022 L\u2019application des huiles min\u00e9rales en hiver contribuent \u00e0 la diminution des adultes hivernants.<br \/>\n\u2022 Un bon masticage et protection des fissures et des plaies.<br \/>\n\u2022 Proc\u00e9der \u00e0 une taille correcte.<br \/>\n\u2022 Surveiller les stades du ravageur sur les jeunes pousses pour bien positionner les traitements.<\/p>\n<h3 style=\"text-align: justify;\">La lutte chimique<\/h3>\n<p><strong>Traitement d\u2019hiver : <\/strong><br \/>\nCe traitement vise \u00e0 r\u00e9duire fortement les populations d\u2019adultes hivernant au niveau des fissures de l\u2019\u00e9corce.<br \/>\nNous recommandons d\u2019appliquer <strong>Afaio Elite<sup>\u00ae<\/sup> <\/strong>\u00e0 la dose de <strong>0.5 \u00e0 2 L\/hl <\/strong>afin de provoquer l\u2019asphyxie des adultes hivern\u00e9s et r\u00e9duire l\u2019intensit\u00e9 des attaques pendant la saison.<br \/>\nLa maitrise de ce ravageur n\u00e9cessite l\u2019utilisation d\u2019un ovicide afin d\u2019emp\u00eacher l\u2019\u00e9closion des \u0153ufs.<\/p>\n<p><strong>Stade formation des grappes florales &#8211; gonflement des boutons floraux <\/strong>:<br \/>\nNous recommandons l\u2019application de l\u2019<strong>Insegar<sup>\u00ae<\/sup> <\/strong>\u00e0 la dose de <strong>0.3 kg\/ha<\/strong>. Ce traitement sera efficace contre les \u0153ufs pr\u00e9sents au moment de l\u2019application et les \u0153ufs qui seraient d\u00e9pos\u00e9s ult\u00e9rieurement. <strong>Insegar<sup>\u00ae<\/sup> <\/strong>assure<br \/>\n\u00e9galement le contr\u00f4le de la pyrale et de la teigne.<\/p>\n<p><strong>Diff\u00e9renciation des corolles &#8211; d\u00e9but de floraison : <\/strong><br \/>\nNous recommandons l\u2019application du <strong>Vertimec<sup>\u00ae<\/sup> <\/strong>\u00e0 la dose de <strong>0,5 L\/ha<\/strong>. Ce traitement stoppe le d\u00e9veloppent des larves et les adultes du psylle, et assure<br \/>\n\u00e9galement le contr\u00f4le des larves de la pyrale.<\/p>\n<p><strong>Pleine floraison : <\/strong><br \/>\nNous recommandons l\u2019application de <strong>Bymite<sup>\u00ae<\/sup> <\/strong>\u00e0 la dose de <strong>0.4 L\/ha<\/strong>.<\/p>\n<\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><div class=\"fusion-fullwidth fullwidth-box fusion-builder-row-2 nonhundred-percent-fullwidth non-hundred-percent-height-scrolling\" style=\"--awb-border-radius-top-left:0px;--awb-border-radius-top-right:0px;--awb-border-radius-bottom-right:0px;--awb-border-radius-bottom-left:0px;--awb-flex-wrap:wrap;\" ><div class=\"fusion-builder-row fusion-row\"><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-1 fusion_builder_column_1_1 1_1 fusion-one-full fusion-column-first fusion-column-last\" style=\"--awb-bg-size:cover;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-separator fusion-full-width-sep\" style=\"margin-left: auto;margin-right: auto;margin-top:30px;width:100%;\"><\/div><div class=\"fusion-sep-clear\"><\/div><div class=\"fusion-title title fusion-title-1 fusion-title-text fusion-title-size-two\"><h2 class=\"fusion-title-heading title-heading-left fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:22;line-height:1.5;\">Nos solutions<\/h2><span class=\"awb-title-spacer\"><\/span><div class=\"title-sep-container\"><div class=\"title-sep sep-single sep-solid\" style=\"border-color:#e0dede;\"><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-2 fusion_builder_column_1_4 1_4 fusion-one-fourth fusion-column-first\" style=\"--awb-padding-top:10px;--awb-bg-size:cover;--awb-border-color:#ededed;--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;width:25%;width:calc(25% - ( ( 4% + 4% + 4% ) * 0.25 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-2 sep-underline sep-solid fusion-title-center fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:17;--minFontSize:17;line-height:1.41;\">Afaio<sup>\u00ae<\/sup> Elite<\/h3><\/div><div class=\"fusion-image-carousel fusion-image-carousel-auto fusion-image-carousel-1 lightbox-enabled\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel\" data-autoplay=\"no\" data-columns=\"1\" data-itemmargin=\"13\" data-itemwidth=\"180\" data-touchscroll=\"no\" data-imagesize=\"auto\" style=\"--awb-columns:1;\"><div class=\"swiper-wrapper awb-image-carousel-wrapper fusion-flex-align-items-center\"><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-none\"><a data-rel=\"iLightbox[image_carousel_1]\" data-title=\"god12\" aria-label=\"god12\" href=\"https:\/\/profert.dz\/fr\/index.php\/produit\/afaio-elite\/\" target=\"_self\"><img decoding=\"async\" width=\"1667\" height=\"1539\" src=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-64x59.jpg 64w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-200x185.jpg 200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-300x277.jpg 300w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-400x369.jpg 400w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-500x462.jpg 500w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-600x554.jpg 600w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-700x646.jpg 700w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-768x709.jpg 768w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-800x739.jpg 800w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-1024x945.jpg 1024w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-1200x1108.jpg 1200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12-1536x1418.jpg 1536w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2025\/07\/god12.jpg 1667w\" sizes=\"(max-width: 1667px) 100vw, 1667px\" \/><\/a><\/div><\/div><\/div><\/div><div class=\"awb-swiper-button awb-swiper-button-prev\"><i class=\"awb-icon-angle-left\" aria-hidden=\"true\"><\/i><\/div><div class=\"awb-swiper-button awb-swiper-button-next\"><i class=\"awb-icon-angle-right\" aria-hidden=\"true\"><\/i><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-3 fusion_builder_column_1_4 1_4 fusion-one-fourth\" style=\"--awb-padding-top:10px;--awb-bg-size:cover;--awb-border-color:#ededed;--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;width:25%;width:calc(25% - ( ( 4% + 4% + 4% ) * 0.25 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-3 sep-underline sep-solid fusion-title-center fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:17;--minFontSize:17;line-height:1.41;\">Insegar<sup>\u00ae<\/sup><\/h3><\/div><div class=\"fusion-image-carousel fusion-image-carousel-auto fusion-image-carousel-2 lightbox-enabled\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel\" data-autoplay=\"no\" data-columns=\"1\" data-itemmargin=\"13\" data-itemwidth=\"180\" data-touchscroll=\"no\" data-imagesize=\"auto\" style=\"--awb-columns:1;\"><div class=\"swiper-wrapper awb-image-carousel-wrapper fusion-flex-align-items-center\"><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-none\"><a data-rel=\"iLightbox[image_carousel_2]\" data-title=\"Insegar\u00ae\" aria-label=\"Insegar\u00ae\" href=\"https:\/\/profert.dz\/fr\/index.php\/produit\/insegar\/\" target=\"_self\"><img decoding=\"async\" width=\"720\" height=\"658\" src=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-120x110.jpg 120w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-200x183.jpg 200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-300x274.jpg 300w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-400x366.jpg 400w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-500x457.jpg 500w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-600x548.jpg 600w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1-700x640.jpg 700w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Insegar\u00ae-1.jpg 720w\" sizes=\"(max-width: 720px) 100vw, 720px\" \/><\/a><\/div><\/div><\/div><\/div><div class=\"awb-swiper-button awb-swiper-button-prev\"><i class=\"awb-icon-angle-left\" aria-hidden=\"true\"><\/i><\/div><div class=\"awb-swiper-button awb-swiper-button-next\"><i class=\"awb-icon-angle-right\" aria-hidden=\"true\"><\/i><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-4 fusion_builder_column_1_4 1_4 fusion-one-fourth\" style=\"--awb-padding-top:10px;--awb-bg-size:cover;--awb-border-color:#ededed;--awb-border-top:1px;--awb-border-right:1px;--awb-border-bottom:1px;--awb-border-left:1px;--awb-border-style:solid;width:25%;width:calc(25% - ( ( 4% + 4% + 4% ) * 0.25 ) );margin-right: 4%;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-title title fusion-title-4 sep-underline sep-solid fusion-title-center fusion-title-text fusion-title-size-three\"><h3 class=\"fusion-title-heading title-heading-center fusion-responsive-typography-calculated\" style=\"margin:0;--fontSize:17;--minFontSize:17;line-height:1.41;\">Vertimec<sup>\u00ae<\/sup><\/h3><\/div><div class=\"fusion-image-carousel fusion-image-carousel-auto fusion-image-carousel-3 lightbox-enabled\"><div class=\"awb-carousel awb-swiper awb-swiper-carousel\" data-autoplay=\"no\" data-columns=\"1\" data-itemmargin=\"13\" data-itemwidth=\"180\" data-touchscroll=\"no\" data-imagesize=\"auto\" style=\"--awb-columns:1;\"><div class=\"swiper-wrapper awb-image-carousel-wrapper fusion-flex-align-items-center\"><div class=\"swiper-slide\"><div class=\"fusion-carousel-item-wrapper\"><div class=\"fusion-image-wrapper hover-type-none\"><a data-rel=\"iLightbox[image_carousel_3]\" data-title=\"vertimec torsion\" aria-label=\"vertimec torsion\" href=\"https:\/\/profert.dz\/fr\/index.php\/produit\/vertimec\/\" target=\"_self\"><img decoding=\"async\" width=\"940\" height=\"788\" src=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion.png\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-64x54.png 64w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-200x168.png 200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-300x251.png 300w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-400x335.png 400w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-500x419.png 500w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-600x503.png 600w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-700x587.png 700w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-768x644.png 768w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion-800x671.png 800w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/vertimec-torsion.png 940w\" sizes=\"(max-width: 940px) 100vw, 940px\" \/><\/a><\/div><\/div><\/div><\/div><div class=\"awb-swiper-button awb-swiper-button-prev\"><i class=\"awb-icon-angle-left\" aria-hidden=\"true\"><\/i><\/div><div class=\"awb-swiper-button awb-swiper-button-next\"><i class=\"awb-icon-angle-right\" aria-hidden=\"true\"><\/i><\/div><\/div><\/div><div class=\"fusion-clearfix\"><\/div><\/div><\/div><div class=\"fusion-layout-column fusion_builder_column fusion-builder-column-5 fusion_builder_column_1_4 1_4 fusion-one-fourth fusion-column-last\" style=\"--awb-bg-size:cover;width:25%;width:calc(25% - ( ( 4% + 4% + 4% ) * 0.25 ) );\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-clearfix\"><\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":25253,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[176],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-25242","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-ravageur-olivier"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Psylle de l\u2019olivier - Profert<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/psylle-de-lolivier\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Psylle de l\u2019olivier - 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