{"id":260,"date":"2013-12-02T21:21:24","date_gmt":"2013-12-02T20:21:24","guid":{"rendered":"http:\/\/www.okusnivrt.com\/novice\/?p=260"},"modified":"2013-12-02T21:21:24","modified_gmt":"2013-12-02T20:21:24","slug":"oidij-vinske-trte","status":"publish","type":"post","link":"https:\/\/www.okusnivrt.com\/novice\/oidij-vinske-trte\/","title":{"rendered":"Oidij vinske trte"},"content":{"rendered":"

\"oidij\"<\/p>\n

Micelij glive, povzro\u010ditelja plesni (Unicula necator<\/em> = Oidium tuckeri<\/em>), raste na zunanji povr\u0161ini zelenih delov rastline in zajeda celice gostitelja, v katerih glivica najde potrebna hranila za razvoj. Po relativno kratki latentni fazi, v kateri gliva nabira mo\u010d za nadaljnje oku\u017ebe, pri\u010dne gliva bolj ali manj kontinuirano sporulirati.<\/p>\n

Za oku\u017ebo rastline voda ni potrebna, vendar visoka relativna vlaga pospe\u0161uje razvoj glive. Optimalne razmere za razvoj glive nastopijo v toplem in suhem vremenu z mo\u010dnej\u0161imi no\u010dnimi ohladitvami in soparnem vremenu brez padavin. Mo\u010dno de\u017eevje deluje na razvoj glive neugodno, saj voda spira micelij in spore glive s povr\u0161ine listnega tkiva. V de\u017eevnih obdobjih najdemo glivo pogosto samo na spodnji strani listov in tistih mestih, ki so za\u0161\u010ditena pred de\u017ejem.<\/p>\n

Gliva prezimuje na dva na\u010dina: lahko tvori kleistotecije na zgornji povr\u0161ini listov, ali pa prezimi v zimskih o\u010desih. Kleistotecije najdemo kot majhne \u010drne pike na mo\u010dno napadenih listih. O\u010desa, ki so oku\u017eena z micelijem glive so bolj ob\u010dutljiva na mraz. V hudih zimah napadeni brsti pozebejo, z njimi odmre \u0161e gliva. To pomeni skoraj 100% uni\u010denje glive.<\/p>\n

Simptomi<\/h2>\n

Na zgornji strani lista se pojavijo svetle pege, ki izgledajo kot oljni made\u017ei – sivkasto-belkasta pepelasta prevleka. Ob mo\u010dnej\u0161em napadu se pri\u010dnejo listi zvijati, postanejo trdi, rumeni, nato porjavijo in odpadejo. Grozde lahko napade \u017ee kmalu po cvetenju, pa tudi pozneje, vse do septembra. Napadene jagode navadno zgnijejo. Gliva napade tudi cele poganjke in povzro\u010di njihovo su\u0161enje ali pa slabo odebelitev in olesenitev.<\/p>\n

Zatiranje<\/h2>\n

Uporaba odpornih sort – b\u010dutljivost posameznih sort je zelo razli\u010dna. Ekstremno ob\u010dutljivi so kerner, trollinger, portugalka in elbling. Pinoji so manj ob\u010dutljivi. Silvanec in rizvanec sta srednje ob\u010dutljiva.<\/p>\n

Z uporabo fungicidov (dinokap).<\/p>\n","protected":false},"excerpt":{"rendered":"

Micelij glive, povzro\u010ditelja plesni (Unicula necator = Oidium tuckeri), raste na zunanji povr\u0161ini zelenih delov rastline in zajeda celice gostitelja, v katerih glivica najde potrebna hranila za razvoj. Po relativno kratki latentni fazi, v kateri gliva nabira mo\u010d za nadaljnje oku\u017ebe, pri\u010dne gliva bolj ali manj kontinuirano sporulirati. Za oku\u017ebo rastline voda ni potrebna, vendar … Preberi ve\u010d Oidij vinske trte<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":261,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"footnotes":""},"categories":[36],"tags":[38,48],"class_list":["post-260","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bolezni","tag-glive","tag-glivne-bolezni"],"yoast_head":"\nOidij vinske trte - Okusni vrt<\/title>\n<meta name=\"description\" content=\"Oidij vinske trte povzro\u010da glive, ki zajeda zelene dele povr\u0161ine. 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