{"id":49448,"date":"2025-09-26T14:00:17","date_gmt":"2025-09-26T18:00:17","guid":{"rendered":"https:\/\/smartcherry.cl\/?p=49448"},"modified":"2025-12-17T10:57:13","modified_gmt":"2025-12-17T14:57:13","slug":"aranitas-asociadas-al-cerezo-sus-caracteristicas-e-impacto-en-el-arbol","status":"publish","type":"post","link":"https:\/\/smartcherry.cl\/en\/control-de-aranita\/aranitas-asociadas-al-cerezo-sus-caracteristicas-e-impacto-en-el-arbol\/","title":{"rendered":"Ara\u00f1itas asociadas al cerezo: Sus caracter\u00edsticas e impacto en el \u00e1rbol"},"content":{"rendered":"<p><strong><em>La ara\u00f1ita roja europea, Panonychus ulmi y la ara\u00f1ita bimaculada, Tetranychus urticae, son dos especies de \u00e1caros fit\u00f3fagos asociados a varios cultivos y especies vegetales, entre ellos el cerezo.<\/em><\/strong><\/p>\n\n\n\n<p>Estas ara\u00f1itas est\u00e1n ampliamente distribuidas en Chile. La ara\u00f1ita roja europea se encuentra entre las regiones de Coquimbo a Los Lagos, mientras que la ara\u00f1ita bimaculada se distribuye desde la Regi\u00f3n de Tarapac\u00e1 hasta la Regi\u00f3n de Magallanes y la Ant\u00e1rtica Chilena.<\/p>\n\n\n\n<p><strong>Descripci\u00f3n morfol\u00f3gica de la ara\u00f1ita roja europea<\/strong><br>Los individuos m\u00f3viles (ninfas y adultos) son de color rojo intenso con manchas laterales m\u00e1s obscuras, en el dorso presentan puntos blancos en la base de la inserci\u00f3n de las setas (6 a 8), de forma m\u00e1s bien esf\u00e9rica.<\/p>\n\n\n\n<p>Los machos son m\u00e1s peque\u00f1os, delgados y con el abdomen m\u00e1s aguzado. Los huevos son rojos, ligeramente aplastados y presentan un pedicelo en el extremo superior. (Fotograf\u00eda 1).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img fetchpriority=\"high\" decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi-1024x585.jpg\" alt=\"\" class=\"wp-image-49450\" srcset=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi-1024x585.jpg 1024w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi-300x171.jpg 300w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi-768x439.jpg 768w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi-18x10.jpg 18w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/fotografia-1.Adulto-y-huevos-de-aranita-roja-europea-Panonychus-ulmi.jpg 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Fotograf\u00eda 1. <\/strong>Adulto y huevos de ara\u00f1ita roja europea, <em>Panonychus ulmi <\/em>(Fotograf\u00eda Biocea Ltda.).<\/figcaption><\/figure>\n\n\n\n<p><strong>Biolog\u00eda<\/strong><br>La ara\u00f1ita roja europea pasa el invierno en estado de huevo en dardos y ramas. Junto con la brotaci\u00f3n se inicia la eclosi\u00f3n de las ninfas, las cuales se alimentan en el haz de las hojas.\u00a0 Sin embargo, las mayores poblaciones se pueden detectar en postcosecha a partir de mediados de diciembre hasta marzo. Esta especie de ara\u00f1ita presenta al menos seis a siete generaciones por temporada.<\/p>\n\n\n\n<p><strong>Descripci\u00f3n morfol\u00f3gica de la ara\u00f1ita bimaculada<\/strong><br>Los adultos son de forma globosa, de color que var\u00eda entre blanquecino, amarillo verdoso incluso rojizo. En la regi\u00f3n dorso lateral se distinguen dos manchas verdes oscuro a negro (Fotograf\u00eda 2). Miden aproximadamente 0,5 mm. Los huevos son esf\u00e9ricos color blanco trasl\u00facido. El macho es m\u00e1s peque\u00f1o, amarillo verdoso.\u00a0<\/p>\n\n\n\n<p><strong>Biolog\u00eda<\/strong><br>La ara\u00f1ita bimaculada pasa el invierno como adulto en malezas o entre terrones. Durante la primavera se suben a los \u00e1rboles y colonizan las hojas centrales, cercanas al tronco. En general esta ara\u00f1ita vive agrupada en el env\u00e9s de las hojas. Forma una tela suave bajo la cual se protegen de los depredadores.<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae-1024x585.jpg\" alt=\"\" class=\"wp-image-49451\" srcset=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae-1024x585.jpg 1024w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae-300x171.jpg 300w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae-768x439.jpg 768w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae-18x10.jpg 18w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-2.-Adultos-y-huevos-de-aranita-bimaculada-Tetranychus-urticae.jpg 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Fotograf\u00eda 2.<\/strong> Adultos y huevos de ara\u00f1ita bimaculada, <em>Tetranychus urticae <\/em>(Fotograf\u00eda Biocea Ltda.).<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img decoding=\"async\" width=\"443\" height=\"437\" src=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas.png\" alt=\"\" class=\"wp-image-49452\" srcset=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas.png 443w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas-300x296.png 300w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas-12x12.png 12w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas-24x24.png 24w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas-48x48.png 48w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Ciclo-aranitas-96x96.png 96w\" sizes=\"(max-width: 443px) 100vw, 443px\" \/><\/figure>\n\n\n\n<p><strong>Da\u00f1o<\/strong><br>El da\u00f1o de estos \u00e1caros fit\u00f3fagos es producido por los estados m\u00f3viles los cuales microperforan el tejido de las hojas aliment\u00e1ndose del contenido celular. Abundancias moderadas de ara\u00f1itas producen la decoloraci\u00f3n de las hojas, que al aumentar el da\u00f1o se tornan color pardo o bronceado. En casos extremos podr\u00eda ocurrir defoliaci\u00f3n.\u00a0<\/p>\n\n\n\n<p>En general, estas ara\u00f1itas fit\u00f3fagas no son un gran problema en cerezos, dado que las mayores poblaciones suelen ocurrir en post cosecha. Sin embargo, como el da\u00f1o se produce en las hojas, ante un ataque severo pueden afectar la acumulaci\u00f3n de reservas del dardo, lo que podr\u00eda eventualmente afectar la producci\u00f3n de la siguiente temporada. Lo anterior cobra mayor relevancia en los huertos en formaci\u00f3n.<\/p>\n\n\n\n<p><strong>Monitoreo<\/strong><br>El monitoreo de la ara\u00f1ita roja europea se debe realizar sobre huevos en ramillas, a salidas de invierno, y estados m\u00f3viles (ninfas y adultos) en el haz de las hojas, desde la primavera en adelante. En esta misma \u00e9poca (primavera-verano) se debe realizar el monitoreo de la ara\u00f1ita bimaculada observando huevos y m\u00f3viles en las hojas.<\/p>\n\n\n\n<p>Se debe muestrear al menos 20 \u00e1rboles por cuartel, de cada \u00e1rbol se observan 10 hojas y\/o ramillas (dependiendo la \u00e9poca y plaga). Con la ayuda de una lupa de 10x se observa y registra la presencia de \u00e1caros fit\u00f3fagos y de enemigos naturales.<\/p>\n\n\n\n<p>Realizar un adecuado monitoreo permitir\u00e1: anticiparse a posibles da\u00f1os, como bronceado de las hojas o desfoliaci\u00f3n y ahorro en acaricidas, eliminando aplicaciones innecesarias<\/p>\n\n\n\n<p><strong>Enemigos naturales ara\u00f1ita roja europea y ara\u00f1ita bimaculada<\/strong><br>Los m\u00e1s comunes y abundantes son los \u00e1caros depredadores conocidos como fitoseidos, estos son brillantes piriformes y con setas ligeramente larga. Se desplazan m\u00e1s r\u00e1pido que los \u00e1caros fit\u00f3fagos y su color var\u00eda desde casi trasl\u00facidos a rojo, dependiendo de su alimentaci\u00f3n (fotograf\u00eda 3).<br><br>En cerezos, se ha observado presencia del cole\u00f3ptero depredador <em>Oligota pygmaea, <\/em>tanto en estado de larva como adulto aliment\u00e1ndose de ara\u00f1itas (fotograf\u00eda 4).<\/p>\n\n\n\n<figure class=\"wp-block-image aligncenter size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"700\" height=\"394\" src=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-3.-Huevos-de-aranita-roja-Fitoseido-depredando.jpg\" alt=\"\" class=\"wp-image-49454\" srcset=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-3.-Huevos-de-aranita-roja-Fitoseido-depredando.jpg 700w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-3.-Huevos-de-aranita-roja-Fitoseido-depredando-300x169.jpg 300w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-3.-Huevos-de-aranita-roja-Fitoseido-depredando-18x10.jpg 18w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><figcaption class=\"wp-element-caption\"><strong>Fotograf\u00eda 3.<\/strong> Fitoseido depredando ara\u00f1itas (Fotograf\u00eda Biocea Ltda.).<\/figcaption><\/figure>\n\n\n\n<figure class=\"wp-block-image aligncenter size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"585\" src=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita-1024x585.jpg\" alt=\"\" class=\"wp-image-49455\" srcset=\"https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita-1024x585.jpg 1024w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita-300x171.jpg 300w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita-768x439.jpg 768w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita-18x10.jpg 18w, https:\/\/smartcherry.cl\/wp-content\/uploads\/2025\/09\/Fotografia-4.-Larva-de-Oligota-pimaea-depredando-aranita.jpg 1400w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><figcaption class=\"wp-element-caption\"><strong>Fotograf\u00eda 4.<\/strong> Larva de <em>Oligota pygmaea<\/em> depredando ara\u00f1ita bimaculada (Fotograf\u00eda Biocea Ltda.).<\/figcaption><\/figure>\n\n\n\n<p><strong>Control de ara\u00f1itas<\/strong><br>Cuando se observan altas densidades de huevos de ara\u00f1ita roja europea en invierno se deben controlar con aceite mineral al 1%, previo a la brotaci\u00f3n de la planta y al inicio de la eclosi\u00f3n ninfas de la plaga, per\u00edodo en que se presenta la mayor susceptibilidad de los huevos al aceite. Esta aplicaci\u00f3n controla, adem\u00e1s, la escama de San Jos\u00e9.\u00a0<\/p>\n\n\n\n<p>Densidades bajas a moderadas de \u00e1caros por hoja pueden ser manejados con la aplicaci\u00f3n de lavados con detergentes agr\u00edcolas. Densidades mayores requieren la aplicaci\u00f3n de acaricidas con registro SAG para cerezos y se deben verificar las tolerancias en los pa\u00edses de destino.<\/p>\n\n\n\n<p>Algunas estrategias de manejo cultural para ataques de ara\u00f1itas fit\u00f3fagas:<\/p>\n\n\n\n<p>&#8211; Evitar la acumulaci\u00f3n de polvo en las hojas, debido a que dificulta la acci\u00f3n adecuada de los enemigos naturales, se recomienda el lavado de los \u00e1rboles, principalmente los de las hileras cercanas a los caminos o sectores de alto tr\u00e1fico.<\/p>\n\n\n\n<p>&#8211; Mantener una poda adecuada permite una mejor ventilaci\u00f3n dentro de la canopia, generando condiciones menos favorables para el desarrollo de plagas y una mejor cobertura de los plaguicidas.<\/p>\n\n\n\n<p>&#8211; Manejo del estr\u00e9s h\u00eddrico: en \u00e1rboles estresados generalmente se observa una mayor sensibilidad al ataque de ara\u00f1itas.<\/p>\n\n\n\n<p><strong>Literatura consultada<\/strong><br>&#8211; Gonz\u00e1lez, R. (1989). Insectos y \u00e1caros de importancia Agr\u00edcola y Cuarentenaria en Chile. Universidad de Chile, BASF, S.A. 310 p.<br>&#8211; PDT Cerezos. (2010). Gu\u00eda de plagas y enfermedades del cerezo. Disponible en: http:\/\/www.fdf.cl\/biblioteca\/publicaciones\/2010\/archivos\/Guia_Plagas_Enf_Cerezos.pdf<br>&#8211; Prado E. (1990) Plagas del cerezo. https:\/\/biblioteca.inia.cl\/server\/api\/core\/bitstreams\/1dd20970-a335-4645-8ffb-234a5f11bad9\/content<br>&#8211; Ripa, R., Luppichini, P. (2010). Manejo de Plagas del Nogal. Colecci\u00f3n libros INIA N\u00ba25. Ministerio de Agricultura. 116 p.<br>&#8211; Ripa, R., (1987). Control de ara\u00f1itas en frutales de carozo. Art\u00edculo Serie Documental Investigaci\u00f3n y Progreso Agropecuario La Platina.\u00a0 N\u00ba de documento 39 p.13-17.<\/p>","protected":false},"excerpt":{"rendered":"<p>Por Paola Luppichini, ingeniera agr\u00f3noma e investigadora del Centro de Entomolog\u00eda Aplicada BIOCEA.<\/p>","protected":false},"author":273,"featured_media":48027,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"inline_featured_image":false,"footnotes":""},"categories":[4397,436,27,80],"tags":[4222,4301],"category_proveedor":[],"pais":[],"class_list":["post-49448","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-biocea","category-columnista","category-opinion-expertos","category-control-de-aranita","tag-biocea","tag-control-de-aranitas"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.3 (Yoast SEO v27.6) - 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