{"id":21470,"date":"2020-03-22T09:58:44","date_gmt":"2020-03-22T08:58:44","guid":{"rendered":"http:\/\/profert.dz\/fr\/?post_type=avada_portfolio&#038;p=21470"},"modified":"2025-05-26T11:51:48","modified_gmt":"2025-05-26T09:51:48","slug":"alternariose-de-la-pomme-de-terre","status":"publish","type":"avada_portfolio","link":"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/alternariose-de-la-pomme-de-terre\/","title":{"rendered":"Alternariose"},"content":{"rendered":"<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;\"><div class=\"fusion-column-wrapper fusion-flex-column-wrapper-legacy\"><div class=\"fusion-text fusion-text-1\"><h2>Alternariose de la pomme de terre<\/h2>\n<p style=\"text-align: justify;\">L\u2019alternariose est une maladie fongique caus\u00e9e par <strong><em>Alternaria Solani<\/em><\/strong> ou <strong><em>Alternaria Alternata<\/em><\/strong>. C\u2019est une maladie qui provoque une s\u00e9nescence pr\u00e9coce des feuilles. Elle peut causer des pertes importantes de rendement en cas d\u2019attaque pr\u00e9coce. L\u2019esp\u00e8ce la plus fr\u00e9quente est l\u2019<strong><em>Alternaria Solani<\/em><\/strong>.<\/p>\n<\/div><div class=\"accordian fusion-accordian\" style=\"--awb-border-size:1px;--awb-icon-size:16px;--awb-content-font-size:14px;--awb-icon-alignment:left;--awb-hover-color:#f9f9f9;--awb-border-color:#cccccc;--awb-background-color:#ffffff;--awb-divider-color:#e0dede;--awb-divider-hover-color:#e0dede;--awb-icon-color:var(--awb-color1);--awb-title-color:#000000;--awb-content-color:#000000;--awb-icon-box-color:#333333;--awb-toggle-hover-accent-color:#ff0000;--awb-title-font-family:&quot;HelveticaMedium&quot;;--awb-title-font-weight:400;--awb-title-font-style:normal;--awb-content-font-family:&quot;HelveticaLight&quot;;--awb-content-font-style:normal;--awb-content-font-weight:400;\"><div class=\"panel-group fusion-toggle-icon-boxed\" id=\"accordion-21470-1\"><div class=\"fusion-panel panel-default panel-ac7d6e094e8e9dee0 fusion-toggle-has-divider\" style=\"--awb-title-color:#000000;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_ac7d6e094e8e9dee0\"><a class=\"active\" aria-expanded=\"true\" aria-controls=\"ac7d6e094e8e9dee0\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-21470-1\" data-target=\"#ac7d6e094e8e9dee0\" href=\"#ac7d6e094e8e9dee0\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">Cycle de d\u00e9veloppement <\/span><\/a><\/h4><\/div><div id=\"ac7d6e094e8e9dee0\" class=\"panel-collapse collapse in\" aria-labelledby=\"toggle_ac7d6e094e8e9dee0\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p style=\"text-align: justify;\">Le champignon hiverne dans les d\u00e9bris v\u00e9g\u00e9taux, sous forme de conidies ou myc\u00e9lium, et dans le sol sous les deux formes. L\u2019alternance de conditions s\u00e8ches et humides favorise la production des conidies. Le champignon germe et donne de nouvelles conidies. Ces derni\u00e8res sont transport\u00e9es par le vent et les \u00e9claboussures de pluies. Lorsque les conditions sont favorables avec une ros\u00e9e pendant la nuit et une temp\u00e9rature comprise entre 20 \u00e0 30\u00b0C, les conidies germent et p\u00e9n\u00e8trent directement dans les tissus de la plante \u00e0 travers les stomates ou les blessures. Le myc\u00e9lium se d\u00e9veloppe et fructifie en donnant des conidies qui assurent la contamination vers les organes sains d\u2019autres plants.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-4b5276b17d3f12473 fusion-toggle-has-divider\" style=\"--awb-title-color:#000000;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_4b5276b17d3f12473\"><a class=\"active\" aria-expanded=\"true\" aria-controls=\"4b5276b17d3f12473\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-21470-1\" data-target=\"#4b5276b17d3f12473\" href=\"#4b5276b17d3f12473\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">Sympt\u00f4mes et d\u00e9g\u00e2ts <\/span><\/a><\/h4><\/div><div id=\"4b5276b17d3f12473\" class=\"panel-collapse collapse in\" aria-labelledby=\"toggle_4b5276b17d3f12473\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p style=\"text-align: justify;\"><strong>Sur feuille\u00a0: <\/strong>apparition de petites taches n\u00e9crotiques de tailles et formes variables d\u00e9limit\u00e9es par les nervures avec des anneaux concentriques caract\u00e9ristiques de la maladie. Une forte attaque provoque la d\u00e9foliation des plants ce qui influence le d\u00e9veloppement des tubercules.<\/p>\n<p style=\"text-align: justify;\"><strong>Sur tubercule\u00a0: <\/strong>apparition de taches brunes fonc\u00e9es avec des anneaux concentriques au milieu. Les taches sont n\u00e9crotiques, elles p\u00e9n\u00e8trent l\u00e9g\u00e8rement en profondeur engendrant une mauvaise qualit\u00e9 du tubercule.<\/p>\n<\/div><\/div><\/div><div class=\"fusion-panel panel-default panel-0cba74a420ca34e6b fusion-toggle-has-divider\" style=\"--awb-title-color:#000000;\"><div class=\"panel-heading\"><h4 class=\"panel-title toggle\" id=\"toggle_0cba74a420ca34e6b\"><a class=\"active\" aria-expanded=\"true\" aria-controls=\"0cba74a420ca34e6b\" role=\"button\" data-toggle=\"collapse\" data-parent=\"#accordion-21470-1\" data-target=\"#0cba74a420ca34e6b\" href=\"#0cba74a420ca34e6b\"><span class=\"fusion-toggle-icon-wrapper\" aria-hidden=\"true\"><i class=\"fa-fusion-box active-icon awb-icon-minus\" aria-hidden=\"true\"><\/i><i class=\"fa-fusion-box inactive-icon awb-icon-plus\" aria-hidden=\"true\"><\/i><\/span><span class=\"fusion-toggle-heading\">Strat\u00e9gie de lutte<\/span><\/a><\/h4><\/div><div id=\"0cba74a420ca34e6b\" class=\"panel-collapse collapse in\" aria-labelledby=\"toggle_0cba74a420ca34e6b\"><div class=\"panel-body toggle-content fusion-clearfix\">\n<p>La lutte contre l\u2019alternariose n\u00e9cessite un programme de lutte qui combine la prophylaxie et la lutte chimique.<\/p>\n<p><strong>1- Mesures prophylactiques\u00a0:<\/strong><\/p>\n<ul>\n<li>\u00c9liminer les d\u00e9bris v\u00e9g\u00e9taux qui sont la source de contamination.<\/li>\n<li>Eviter toute sorte de stress qui favorise l\u2019installation de la maladie.<\/li>\n<li>Effectuer une rotation de 2 ans minimum.<\/li>\n<li>Utiliser une semence saine et certifi\u00e9e.<\/li>\n<\/ul>\n<p><strong>2- Lutte chimique\u00a0:<\/strong><br \/>\n<strong>Croissance active:<\/strong> \u00e0 ce stade, et si les conditions climatiques sont favorables au d\u00e9veloppement du champignon (temp\u00e9rature de 20 \u00e0 30\u00b0C), nous recommandons d\u2019utiliser <strong>Consento<\/strong>, \u00e0 la dose de <strong>1.5 L\/ha<\/strong> \u00e0 <strong>2 L\/ha<\/strong>. Ce traitement assure aussi le contr\u00f4le du mildiou.<\/p>\n<p><strong>V\u00e9g\u00e9tation stabilis\u00e9e \u2013 Fin de cycle:<\/strong> \u00e0 ce stade, et si les conditions climatiques sont toujours favorables (temp\u00e9rature de 20 \u00e0 30\u00b0C), nous recommandons d\u2019utiliser <strong>Score<\/strong>, \u00e0 la dose de <strong>0.5L\/ha<\/strong> ou <strong>Fluzoki<\/strong>, \u00e0 la dose de <strong>0.5L\/ha<\/strong>, pendant toute la dur\u00e9e de ce cycle, avec un intervalle de 7 jours. Le traitement avec <strong>Fluzoki<\/strong>, assure le contr\u00f4le de mildiou des tubercules.<\/p>\n<\/div><\/div><\/div><\/div><\/div><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-1 fusion_builder_column_1_4 1_4 fusion-one-fourth fusion-column-first\" style=\"--awb-padding-top:10px;--awb-padding-right:10px;--awb-padding-left:10px;--awb-bg-size:cover;--awb-border-color:#e0dede;--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;\">Score<sup>\u00ae<\/sup><\/h3><\/div><div class=\"fusion-image-carousel fusion-image-carousel-auto fusion-image-carousel-1\"><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 href=\"http:\/\/profert.dz\/fr\/index.php\/produit\/score\/ \" target=\"_self\"><img decoding=\"async\" width=\"720\" height=\"658\" src=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-120x110.jpg 120w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-200x183.jpg 200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-300x274.jpg 300w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-400x366.jpg 400w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-500x457.jpg 500w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-600x548.jpg 600w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score-700x640.jpg 700w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Score.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-2 fusion_builder_column_1_4 1_4 fusion-one-fourth\" style=\"--awb-padding-top:10px;--awb-padding-right:10px;--awb-padding-left:10px;--awb-bg-size:cover;--awb-border-color:#e0dede;--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;\">Consento<sup>\u00ae<\/sup><\/h3><\/div><div class=\"fusion-image-carousel fusion-image-carousel-auto fusion-image-carousel-2\"><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 href=\"http:\/\/profert.dz\/fr\/index.php\/produit\/consento\/\" target=\"_self\"><img decoding=\"async\" width=\"720\" height=\"658\" src=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento.jpg\" class=\"attachment-full size-full\" alt=\"\" srcset=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-120x110.jpg 120w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-200x183.jpg 200w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-300x274.jpg 300w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-400x366.jpg 400w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-500x457.jpg 500w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-600x548.jpg 600w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento-700x640.jpg 700w, https:\/\/profert.dz\/fr\/wp-content\/uploads\/2018\/04\/Consento.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-3 fusion_builder_column_1_4 1_4 fusion-one-fourth\" style=\"--awb-bg-size:cover;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-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 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>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":21475,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[146],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-21470","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-maladies-pomme-de-terre"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v25.6 - 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