{"id":748,"date":"2013-09-16T19:57:30","date_gmt":"2013-09-16T19:57:30","guid":{"rendered":"http:\/\/www.gb-online.co.uk\/gb-wordpress\/?p=748"},"modified":"2022-09-08T15:22:27","modified_gmt":"2022-09-08T15:22:27","slug":"pear-rust-gymnosporangium-sabinae","status":"publish","type":"post","link":"https:\/\/www.gb-online.co.uk\/gb-wordpress\/pear-rust-gymnosporangium-sabinae\/","title":{"rendered":"Pear Rust – Gymnosporangium sabinae"},"content":{"rendered":"

Pear rust is a fungal disease of pears, causing bright orange spots on the leaves during summertime. If severe it can cause cankering of the stems. The only 2 methods, which are to remove and destroy all of the affected leaves, or give them a spray with difenoconazole (Westland Plant Rescue Fungus Control concentrate).<\/p>\n

\"Pear<\/a>
Pear Rust<\/figcaption><\/figure>\n

Like all rusts they are biotroph, which means that they cannot live on dead material. So they must find a living host to over winter on, which in Pear Rusts case is Juniper.<\/p>\n

On pears, the brown fungal growths produced on the underside of infected leaves release spores which cannot reinfect pear, but instead are wind-dispersed and infect several juniper species, causing perennial stem infections. In spring these produce orange, horn-like outgrowths, which in turn produce wind-blown spores that reinfect pears.<\/p>\n","protected":false},"excerpt":{"rendered":"

Pear rust is a fungal disease of pears, causing bright orange spots on the leaves during summertime. If severe it<\/p>\n","protected":false},"author":1,"featured_media":749,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[367,361,366,368,365],"class_list":["post-748","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fruit-and-nut-growing-experiences","tag-biotroph","tag-difenoconazole","tag-gymnosporangium-sabinae","tag-juniper","tag-pear-rust","comments-off"],"yoast_head":"\nPear Rust - Gymnosporangium sabinae - The BLOG of www.gb-online.co.uk<\/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:\/\/www.gb-online.co.uk\/gb-wordpress\/pear-rust-gymnosporangium-sabinae\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Pear Rust - Gymnosporangium sabinae - The BLOG of www.gb-online.co.uk\" \/>\n<meta property=\"og:description\" content=\"Pear rust is a fungal disease of pears, causing bright orange spots on the leaves during summertime. 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