{"id":27113,"date":"2018-03-09T09:19:14","date_gmt":"2018-03-09T09:19:14","guid":{"rendered":"https:\/\/www.deberes.net\/tesis\/sin-categoria\/biologa%c2%ada-y-control-del-cotonet-planococcus-citri-risso-en-huertos-de-ca%c2%adtricos\/"},"modified":"2018-03-09T09:19:14","modified_gmt":"2018-03-09T09:19:14","slug":"biologa%c2%ada-y-control-del-cotonet-planococcus-citri-risso-en-huertos-de-ca%c2%adtricos","status":"publish","type":"post","link":"https:\/\/www.deberes.net\/tesis\/politecnica-de-valencia\/biologa%c2%ada-y-control-del-cotonet-planococcus-citri-risso-en-huertos-de-ca%c2%adtricos\/","title":{"rendered":"Biolog\u00eda y control del cotonet planococcus citri (risso) en huertos de c\u00edtricos"},"content":{"rendered":"<h2>Tesis doctoral de <strong> Mar\u00eda Teresa Mart\u00ednez Ferrer <\/strong><\/h2>\n<p>Planococcus citri se considera una plaga importante de los c\u00edtricos en todo el mundo. El manejo de este fit\u00f3fago se basa en los principios de la producci\u00f3n integrada, que requiere conocimientos precisos sobre la biolog\u00eda, ciclo estacional y comportamiento de las poblaciones de p.Citri. Entre los a\u00f1os 1992 a 1998 se ha realizado un seguimiento de las poblaciones de p.Citri y de sus enemigos naturales en diversas parcelas de c\u00edtricos tratadas y no tratadas con productos fitosanitarios. Estos seguimientos se han realizado tanto en diferentes partes del \u00e1rbol como con trampas pegajosas con fermona sexual.  en la zona de estudio, p.Citri desarroll\u00f3 cinco generaciones al a\u00f1o. La temperatura cr\u00edtica de desarrollo y la integral t\u00e9rmica de p.Citri fueron 8,3\u00c2\u00bac y 562, 4\u00c2\u00bac-d\u00eda, respectivamente. Las larvas de primera edad invadieron el c\u00e1liz de los frutos en los meses de mayor a julio, alcanzando en julio valores elevados en porcentaje de c\u00e1lices invadidos, con una media del 72%. P.Citri invadi\u00f3 el fruto desde el c\u00e1liz a partir del mes de agosto, con una media de parcelas y a\u00f1os de un 22% de frutos atacados exteriormente. la poblaci\u00f3n de p.Citri fluctu\u00f3 durante los a\u00f1os sucesivos, en parcelas no tratadas, manteni\u00e9ndose entre un 10% y un 30% de frutos atacados. Los pesticidas organofosforados aplicados en primavera controlaron satisfactoriamente la poblaci\u00f3n de p.Citri. Hemos determinado que los umbrales de tratamiento son, en primavera, un 70% de c\u00e1lices de los frutos ocupados y en agosto y septiembre, un 20% de frutos ocupados.  la poblaci\u00f3n de p.Cirtri mostr\u00f3 una pauta de distribuci\u00f3n agregativa bajo el c\u00e1liz de los frutos, sobre los frutos y en el tronco, con el \u00edndice de taylor b de 1,45,  1,41 y 1,42 resepctivamente.  se aconseja muestrear unos 130 frutos mediante un muestreo enumerativo en el caso de poblaciones bajas y medias, y 200 frutos mediante un muestreo binomial para poblaciones elevadas.  el control bi<\/p>\n<p>&nbsp;<\/p>\n<h3>Datos acad\u00e9micos de la tesis doctoral \u00ab<strong>Biolog\u00eda y control del cotonet planococcus citri (risso) en huertos de c\u00edtricos<\/strong>\u00ab<\/h3>\n<ul>\n<li><strong>T\u00edtulo de la tesis:<\/strong>\u00a0 Biolog\u00eda y control del cotonet planococcus citri (risso) en huertos de c\u00edtricos <\/li>\n<li><strong>Autor:<\/strong>\u00a0 Mar\u00eda Teresa Mart\u00ednez Ferrer <\/li>\n<li><strong>Universidad:<\/strong>\u00a0 Polit\u00e9cnica de Valencia<\/li>\n<li><strong>Fecha de lectura de la tesis:<\/strong>\u00a0 27\/11\/2003<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n<h3>Direcci\u00f3n y tribunal<\/h3>\n<ul>\n<li><strong>Director de la tesis<\/strong>\n<ul>\n<li>Ferran Garc\u00eda Mar\u00ed<\/li>\n<\/ul>\n<\/li>\n<li><strong>Tribunal<\/strong>\n<ul>\n<li>Presidente del tribunal: cristina Casta\u00f1\u00e9 fern\u00e1ndez <\/li>\n<li>alfonso Hermoso de mendoza arocas (vocal)<\/li>\n<li>Jos\u00e9 Carlos franco (vocal)<\/li>\n<li>josep Jacas miret (vocal)<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Tesis doctoral de Mar\u00eda Teresa Mart\u00ednez Ferrer Planococcus citri se considera una plaga importante de los c\u00edtricos en todo el [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"","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":"","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-4)","background-image":"","background-repeat":"repeat","background-position":"center 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