{"id":14,"date":"2012-05-27T12:04:00","date_gmt":"2012-05-27T12:04:00","guid":{"rendered":"http:\/\/entresemillas.com\/blog\/?p=14"},"modified":"2021-01-27T21:15:28","modified_gmt":"2021-01-27T20:15:28","slug":"arana-roja-el-enemigo-bajo-las-hojas","status":"publish","type":"post","link":"https:\/\/entresemillas.com\/blog\/arana-roja-el-enemigo-bajo-las-hojas\/","title":{"rendered":"Ara\u00f1a roja: el enemigo bajo las hojas"},"content":{"rendered":"\n<p class=\"wp-block-paragraph\">Hoy vamos a hablar sobre una de las plagas que tenemos que conocer. Cuando hablamos de ara\u00f1a roja<strong> nos referimos en realidad a un \u00e1caro<\/strong> del g\u00e9nero <em>Tetranychus<\/em>. Este \u00e1caro, que se alimenta de plantas en ambientes secos, en Espa\u00f1a afecta sobre todo a la costa mediterr\u00e1nea, Extremadura y Canarias.<\/p>\n\n\n\n<!--more-->\n\n\n\n<figure class=\"wp-block-image alignnone\"><a href=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna1.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"663\" src=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna1-1024x663.jpg\" alt=\"Vigna caracalla afectada por ara\u00f1a roja plagas plantas\" class=\"wp-image-16\" srcset=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna1-1024x663.jpg 1024w, https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna1-300x194.jpg 300w, https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna1.jpg 1761w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption>Vigna caracalla afectada por ara\u00f1a roja<\/figcaption><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">En la foto superior, puede verse el punteado claro que producen en la parte superior de la hoja. V<strong>iven en el env\u00e9s de las hojas<\/strong>, donde la fina telara\u00f1a de seda que construyen crea un microclima id\u00f3neo para la reproducirse (protegidos del agua, acaricidas y depredadores).<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A simple vista pueden verse los\u00a0adultos, diferenci\u00e1ndose entre hembras y machos. La hembra tiene forma ovalada ovalada de 0,5 mm. por 0,3 mm. Es de<strong> color rojo-anaranjado<\/strong>\u00a0(tambi\u00e9n amarillo\u00a0y verde) con dos distintivas manchas oscuras laterales en el t\u00f3rax; el macho es mas peque\u00f1o y estrecho, de color m\u00e1s claro. Los huevos se observan como diminutas esferas planas de color claro que se oscurecen a medida que maduran.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Este enemigo tan peque\u00f1o chupa la savia de las plantas, provocando la curvatura de las hojas que acabar\u00e1n por secarse y caer prematuramente. As\u00ed, acabar\u00e1 <strong>mermando el crecimiento de la planta<\/strong> y la producci\u00f3n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Para el <strong>control de esta plaga<\/strong>, el primer factor a tener en cuenta es conseguir una <span style=\"text-decoration: underline;\">alta humedad<\/span> aumentando el n\u00famero de pulverizaciones de agua limpia sobre las plantas y revisando concienzudamente el env\u00e9s de las hojas. Adem\u00e1s, se pueden aplicar <span style=\"text-decoration: underline;\">productos qu\u00edmicos<\/span> espec\u00edficos como son los acaricidas o, de forma m\u00e1s<span style=\"text-decoration: underline;\"> ecol\u00f3gica, introducir un depredador<\/span> de este \u00e1caro. El depredador m\u00e1s utilizado para el control biol\u00f3gico es <em>Phytoseiulus persimilis<\/em>. Existen otros depredadores como <em>Amblyseius andersoni<\/em>, <em>Amblyseius californicus<\/em>, <em>Feltiella acarisuga<\/em> y <em>Macrolophus caliginosus<\/em>.<\/p>\n\n\n\n<figure class=\"wp-block-image\"><a href=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna2.jpg\"><img loading=\"lazy\" decoding=\"async\" width=\"881\" height=\"1024\" src=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna2-881x1024.jpg\" alt=\"plagas plantas ara\u00f1a roja \" class=\"wp-image-15\" title=\"Vigna caracalla afectada por ara\u00f1a roja\" srcset=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna2-881x1024.jpg 881w, https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna2-258x300.jpg 258w, https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2012\/05\/vigna2.jpg 1436w\" sizes=\"auto, (max-width: 881px) 100vw, 881px\" \/><\/a><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">Puedes leer m\u00e1s sobre plagas:<\/h4>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/entresemillas.com\/blog\/4-plagas-y-enfermedades-de-las-plantas-en-otono\/\" target=\"_blank\" rel=\"noreferrer noopener\">4 plagas a conocer<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/entresemillas.com\/blog\/plantas-que-previenen-plagas\/\" target=\"_blank\" rel=\"noreferrer noopener\">Plantas que repelen plagas<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/entresemillas.com\/blog\/depredadores-naturales-de-plagas\/\" target=\"_blank\" rel=\"noreferrer noopener\">Depredadores plagas<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n\n\n\n<div class=\"wp-block-group\"><div class=\"wp-block-group__inner-container is-layout-flow wp-block-group-is-layout-flow\">\n<hr class=\"wp-block-separator\"\/>\n\n\n\n<div style=\"text-align:center\" class=\"wp-block-genesis-blocks-gb-cta gb-block-cta\"><div class=\"gb-cta-image-wrap\"><img decoding=\"async\" class=\"gb-cta-image has-background-dim\" src=\"https:\/\/entresemillas.com\/blog\/wp-content\/uploads\/2020\/05\/sliderFondo.jpg\" alt=\"\"\/><\/div><div class=\"gb-cta-content\"><h2 class=\"gb-cta-title gb-font-size-32\" style=\"color:#32373c\">Descubre nuestras semillas<\/h2><div class=\"gb-cta-text gb-font-size-32\" style=\"color:#32373c\"><p>Las m\u00e1s f\u00e1ciles de sembrar<\/p><\/div><\/div><div class=\"gb-cta-button\"><a href=\"https:\/\/entresemillas.com\/content\/6-semillas-que-quieres-descubrir\" target=\"_self\" rel=\"noopener noreferrer\" class=\"gb-button gb-button-shape-rounded gb-button-size-medium\" style=\"color:#ffffff;background-color:#81c14b\">Ir a la tienda<\/a><\/div><\/div>\n\n\n\n<hr class=\"wp-block-separator\"\/>\n<\/div><\/div>\n\n\n\n<div class=\"wp-block-group is-layout-flow wp-block-group-is-layout-flow\"><style>.wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a, .wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a[data-kb-block=\"kb-adv-heading_1ee4eb-5a\"]{text-align:center;font-size:32px;font-weight:bold;font-style:normal;}.wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a mark.kt-highlight, .wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a[data-kb-block=\"kb-adv-heading_1ee4eb-5a\"] mark.kt-highlight{font-weight:normal;font-style:normal;color:#f76a0c;-webkit-box-decoration-break:clone;box-decoration-break:clone;padding-top:0px;padding-right:0px;padding-bottom:0px;padding-left:0px;}.wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a img.kb-inline-image, .wp-block-kadence-advancedheading.kt-adv-heading_1ee4eb-5a[data-kb-block=\"kb-adv-heading_1ee4eb-5a\"] img.kb-inline-image{width:150px;vertical-align:baseline;}<\/style>\n<h2 class=\"kt-adv-heading_1ee4eb-5a wp-block-kadence-advancedheading has-vivid-red-color has-text-color\" data-kb-block=\"kb-adv-heading_1ee4eb-5a\"><strong>\u00daltimos art\u00edculos<\/strong><\/h2>\n\n\n<\/div>\n","protected":false},"excerpt":{"rendered":"<p>Repeler la ara\u00f1a roja de plantas<\/p>\n","protected":false},"author":1,"featured_media":16,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center 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