{"id":1075,"date":"2018-05-15T19:37:26","date_gmt":"2018-05-15T23:37:26","guid":{"rendered":"https:\/\/blog.uvm.edu\/fruit\/?p=1075"},"modified":"2018-05-15T19:39:32","modified_gmt":"2018-05-15T23:39:32","slug":"apple-scab-infection-period","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/fruit\/2018\/05\/15\/apple-scab-infection-period\/","title":{"rendered":"Apple scab infection period"},"content":{"rendered":"<p>By <a href=\"mailto:Terence.Bradshaw@uvm.edu\">Terence Bradshaw<\/a><\/p>\n<p>Okay, today was wet. Without question this was a substantial apple scab infection period. Fire blight- I\u2019m still on the fence an lean towards \u2018not a problem\u2019 unless you had a substantial amount last year and have susceptible cultivars. NEWA estimates across the state suggest that 12-30% of the entire season\u2019s apple ascospores were discharged today. What does that mean?<\/p>\n<p><a href=\"http:\/\/blog.uvm.edu\/fruit\/files\/2018\/05\/image001.png\" rel=\"attachment wp-att-1076\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-1076 size-medium\" title=\"image001-png\" src=\"http:\/\/blog.uvm.edu\/fruit\/files\/2018\/05\/image001-282x300.png\" alt=\"\" width=\"282\" height=\"300\" srcset=\"https:\/\/blog.uvm.edu\/fruit\/files\/2018\/05\/image001-282x300.png 282w, https:\/\/blog.uvm.edu\/fruit\/files\/2018\/05\/image001.png 508w\" sizes=\"auto, (max-width: 282px) 100vw, 282px\" \/><\/a><\/p>\n<p>If you went in to this rain event with a full, as in 6 lb\/acre of mancozeb or 5 lb\/acre captan applied in the past five days, you\u2019re probably good. Any less than that, and you should really consider coming in in the next 48 hours with a material with post-infection activity, like one of the DMIs, QOIs, or SDHIs. If those look like alphabet soup to you, check your <a href=\"http:\/\/netreefruit.org\/\">New England Tree Fruit Management Guide<\/a> for some more clarity. Organic growers should get more sulfur on, and if coverage was questionable, this is a time when lime sulfur may be called for to burn out germinating spores before infection gets too ahead of things.<\/p>\n<p>For those with stone fruit, this was also likely a major brown rot infection period, so trees should be covered with a suitable material in the DMI or QOI classes within this same time window.<\/p>\n<p>Where trade names or commercial products are used for identification,<\/p>\n<p>no discrimination is intended and no endorsement is implied.<\/p>\n<p>Always read the label before using any pesticide.<\/p>\n<p>The label is the legal document for the product use.<\/p>\n<p>Disregard any information in this message if it is in conflict with the<\/p>\n<p>label.<\/p>\n<p>The UVM Tree Fruit and Viticulture Program is supported by the<\/p>\n<p>University of Vermont Agriculture Experiment Station, a USDA NIFA E-IPM<\/p>\n<p>Grant, and USDA Risk Management Agency Funds.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>By Terence Bradshaw Okay, today was wet. Without question this was a substantial apple scab infection period. Fire blight- I\u2019m still on the fence an lean towards \u2018not a problem\u2019 unless you had a substantial amount last year and have susceptible cultivars. NEWA estimates across the state suggest that 12-30% of the entire season\u2019s apple &hellip; <a href=\"https:\/\/blog.uvm.edu\/fruit\/2018\/05\/15\/apple-scab-infection-period\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Apple scab infection period<\/span><\/a><\/p>\n","protected":false},"author":2068,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"jetpack_post_was_ever_published":false,"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":"","jetpack_publicize_message":"","jetpack_publicize_feature_enabled":true,"jetpack_social_post_already_shared":true,"jetpack_social_options":{"image_generator_settings":{"template":"highway","default_image_id":0,"font":"","enabled":false},"version":2}},"categories":[],"tags":[36708,107009],"class_list":["post-1075","post","type-post","status-publish","format-standard","hentry","tag-ipm","tag-tree-fruit"],"jetpack_publicize_connections":[],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"fruit","author_link":"https:\/\/blog.uvm.edu\/fruit\/author\/fruit\/"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4nZlV-hl","_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1075","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/users\/2068"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/comments?post=1075"}],"version-history":[{"count":2,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1075\/revisions"}],"predecessor-version":[{"id":1079,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1075\/revisions\/1079"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/media?parent=1075"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/categories?post=1075"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/tags?post=1075"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}