{"id":27291,"date":"2023-10-31T09:49:47","date_gmt":"2023-10-31T08:49:47","guid":{"rendered":"https:\/\/profert.dz\/fr\/?post_type=avada_portfolio&p=27291"},"modified":"2026-01-06T14:29:53","modified_gmt":"2026-01-06T13:29:53","slug":"acarien-des-agrumes","status":"publish","type":"avada_portfolio","link":"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/acarien-des-agrumes\/","title":{"rendered":"Acarien"},"content":{"rendered":"

Acarien<\/h2>\n

Les acariens sont parmi les ravageurs les plus redoutables sur la culture des agrumes \u00e0 travers le monde, ils provoquent d\u2019importants d\u00e9g\u00e2ts sur la production (quantitativement et qualitativement).<\/p>\n

En Alg\u00e9rie, plusieurs esp\u00e8ces sont pr\u00e9sentes, l\u2019esp\u00e8ce la plus fr\u00e9quente est l\u2019acarien rouge des agrumes \u00ab Panunychus Citri <\/em>\u00bb.<\/p>\n

Cycle de d\u00e9veloppement<\/h2>\n

L\u2019acarien hiverne sous forme d\u2019\u0153ufs d\u2019hiver, au printemps les \u0153ufs d\u2019hiver \u00e9closent donnant la premi\u00e8re g\u00e9n\u00e9ration.
\nLes femelles adultes de cet acarien pondent en moyenne 2 \u00e0 4 \u0153ufs par jour et ce pendant 3 \u00e0 4 semaines. Les \u0153ufs \u00e9closent au bout d\u2019une semaine environ. L\u2019acarien passe par trois stades de d\u00e9veloppement larvaires et chaque stade pr\u00e9sente un stade mobile (nymphe) et immobile (chrysalide).
\nLe passage du stade \u0153uf au stade adulte varie en fonction de la temp\u00e9rature et de l\u2019humidit\u00e9, en moyenne 10 jours \u00e0 26C\u00b0 et 70 % d\u2019humidit\u00e9. Il peut y avoir jusqu\u2019\u00e0 16 g\u00e9n\u00e9rations par an.
\nCette vitesse de d\u00e9veloppement permet rapidement un chevauchement des g\u00e9n\u00e9rations en fin de printemps (\u0153uf, larve, chrysalide, adulte).<\/p>\n

Sympt\u00f4mes et d\u00e9g\u00e2ts<\/h2>\n

Sur feuilles :<\/strong> L\u2019acarien provoque une d\u00e9coloration des feuilles qui deviennent jaunes brun\u00e2tres et parfois en cas de fortes attaques on observe une pr\u00e9sence de toiles tiss\u00e9es sur les feuilles et les jeunes pousses. Les d\u00e9g\u00e2ts se traduisent par une r\u00e9duction de l\u2019activit\u00e9 photosynth\u00e9tique et par une importante chute des feuilles durant l\u2019\u00e9t\u00e9 jusqu\u2019\u00e0 l\u2019automne.
\nSur Bourgeons :<\/strong> L\u2019acarien provoque une d\u00e9formation des bourgeons \u00e0 feuilles ce qui cause un blocage de d\u00e9veloppement. Les bougeons \u00e0 fleurs prennent un aspect irr\u00e9gulier.
\nLes futurs fruits seront d\u00e9form\u00e9s et tomberont pr\u00e9matur\u00e9ment. Une forte attaque impacte sur la production en qualit\u00e9 et quantit\u00e9.
\nSur fruits :<\/strong> Les fruits en d\u00e9veloppement pr\u00e9sentent une couleur rouill\u00e9e bronz\u00e9e et parfois m\u00eame une d\u00e9formation.
\nLes fruits attaqu\u00e9s ne grossissent pas, tout en ayant un probl\u00e8me de coloration, ce qui impacte leur valeur commerciale.<\/p>\n

La strat\u00e9gie de lutte<\/h2>\n

La lutte contre les acariens des agrumes n\u00e9cessite un programme de lutte qui combine la prophylaxie et la lutte chimique.
\n1- Les mesures de prophylaxie :<\/strong>
\n\u2022 Appliquer des huiles min\u00e9rales en hiver ce qui contribuera \u00e0 la diminution des \u0153ufs hivernants.
\n\u2022 Equilibrer la fertilisation azot\u00e9e.
\n\u2022 Eviter l\u2019utilisation abusive des organophosphor\u00e9s afin de permettre le d\u00e9veloppement des auxiliaires.
\n\u2022 Proc\u00e9der \u00e0 une taille correcte.
\n\u2022 Assurer un bon d\u00e9sherbage pour \u00e9viter l\u2019installation de l\u2019acarien \u00e0 partir d\u2019h\u00f4tes secondaires.
\n\u2022 Appliquer une strat\u00e9gie de lutte convenable.<\/p>\n

2- Traitement chimique :<\/strong>
\nTraitement d\u2019hiver :<\/strong>
\nCe traitement vise \u00e0 r\u00e9duire fortement les \u0153ufs d\u2019hiver.<\/p>\n

Nous recommandons d\u2019appliquer Afaio Elite\u00ae<\/sup><\/strong> \u00e0 la dose de 0.5 \u00e0 2 L\/hl<\/strong>. Ce traitement provoque l\u2019asphyxie des \u0153ufs et r\u00e9duit l\u2019intensit\u00e9 des attaques pendant la saison.<\/p>\n

Fin Floraison-Nouaison :<\/strong><\/p>\n

A ce stade, les conditions climatiques sont plus au moins favorables et les individus d\u2019acariens (larve et adultes) issus des \u0153ufs d\u2019hiver commencent \u00e0 apparaitre. Nous recommandons l\u2019application de Vertimec\u00ae<\/sup><\/strong> \u00e0 la dose de 0,5 L\/ha<\/strong>.
\nCe traitement stoppe le d\u00e9veloppent des larves et les adultes d\u2019acariens. Il assure \u00e9galement le contr\u00f4le de la mineuse des agrumes.<\/p>\n

Fin nouaison-Grossissement :<\/strong><\/p>\n

A ce stade, les conditions climatiques sont favorables au d\u00e9veloppement des acariens, la deuxi\u00e8me pouss\u00e9e v\u00e9g\u00e9tative est en d\u00e9veloppement. Nous recommandons l\u2019application de Magus\u00ae<\/sup><\/strong> \u00e0 la dose de 0,75 L\/ha<\/strong> ; ce traitement assure un bon contr\u00f4le des larves et des \u0153ufs d\u2019\u00e9t\u00e9, et adultes de l\u2019acarien.
\nDeux semaines apr\u00e8s ce traitement, nous recommandons l\u2019utilisation d\u2019Acari pro\u00ae<\/sup><\/strong> \u00e0 la dose de 0,3 L\/ha<\/strong>.
\nCe traitement assure un bon contr\u00f4le contre tous les stades de d\u00e9veloppement des acariens.<\/p>\n

Grossissement- Maturit\u00e9 :<\/strong><\/p>\n

A ce stade, la troisi\u00e8me pouss\u00e9e a lieu et les conditions climatiques sont toujours favorables au d\u00e9veloppement d\u2019acariens. Nous recommandons l\u2019utilisation de Bymite\u00ae<\/sup><\/strong> \u00e0 la dose de 0,4 L\/ha<\/strong> ou l\u2019utilisation de Magus\u00ae<\/sup><\/strong> \u00e0 la dose de 0,75 L\/ha<\/strong>. En cas de forte pression, nous recommandons l\u2019association de Magus\u00ae<\/sup><\/strong> \u00e0 la dose de 0,5 L\/ha<\/strong> avec Heliosol\u00ae<\/sup><\/strong> afin d\u2019assurer une bonne efficacit\u00e9 avec une longue r\u00e9manence d\u2019action.<\/p>\n<\/div><\/div><\/div><\/div><\/div>

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Nos solutions<\/h2><\/span>
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Vertimec\u00ae<\/sup><\/h3><\/div>
\"\"<\/a><\/div><\/div><\/div><\/div>
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Acari pro\u00ae<\/sup><\/h3><\/div>
\"\"<\/a><\/div><\/div><\/div><\/div>
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Magus\u00ae<\/sup><\/h3><\/div>
\"\"<\/a><\/div><\/div><\/div><\/div>
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Heliosol\u00ae<\/sup><\/h3><\/div>
\"\"<\/a><\/div><\/div><\/div><\/div>
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Afaio Elite\u00ae<\/sup><\/h3><\/div>
\"\"<\/a><\/div><\/div><\/div><\/div>
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<\/div><\/div><\/div><\/div><\/div><\/p>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":27297,"menu_order":0,"comment_status":"open","ping_status":"closed","template":"","format":"standard","meta":{"footnotes":""},"portfolio_category":[136],"portfolio_skills":[],"portfolio_tags":[],"class_list":["post-27291","avada_portfolio","type-avada_portfolio","status-publish","format-standard","has-post-thumbnail","hentry","portfolio_category-ravageurs-agrumes"],"yoast_head":"\nAcarien - 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\/acarien-des-agrumes\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Acarien - Profert\" \/>\n<meta property=\"og:url\" content=\"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/acarien-des-agrumes\/\" \/>\n<meta property=\"og:site_name\" content=\"Profert\" \/>\n<meta property=\"article:modified_time\" content=\"2026-01-06T13:29:53+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/profert.dz\/fr\/wp-content\/uploads\/2023\/10\/Acarien-des-Agrumes.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"1200\" \/>\n\t<meta property=\"og:image:height\" content=\"900\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Dur\u00e9e de lecture estim\u00e9e\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/acarien-des-agrumes\/\",\"url\":\"https:\/\/profert.dz\/fr\/index.php\/portfolio-items\/acarien-des-agrumes\/\",\"name\":\"Acarien - 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