{"id":1550,"date":"2021-06-09T05:56:19","date_gmt":"2021-06-09T09:56:19","guid":{"rendered":"https:\/\/blog.uvm.edu\/fruit\/2021\/06\/09\/vt-grape-ipm-peak-disease-management\/"},"modified":"2021-06-09T05:56:19","modified_gmt":"2021-06-09T09:56:19","slug":"vt-grape-ipm-peak-disease-management","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/fruit\/2021\/06\/09\/vt-grape-ipm-peak-disease-management\/","title":{"rendered":"VT Grape IPM – Peak disease management"},"content":{"rendered":"

I apologize for this overdue communication. Some grapes at the UVM Vineyard in South Burlington were starting bloom yesterday, and we are in peak disease management season. I\u2019ll keep this brief:<\/p>\n

    \n
  1. Pretty much every major disease is likely active now, including black rot, Phomopsis, powdery and downy mildew, and anthracnose. Vines should be protected with the best materials in your toolbox. For non-organic growers, that means mancozeb or captan plus<\/em> a DMI (FRAC code 3, e.g., Rally, Vintage, Inspire super) or strobilurin (FRAC<\/a> code 11, e.g., Flint, Sovran, etc) material. Rotate those FRAC codes and do not use materials with the same code more than twice in a row.<\/li>\n
  2. For organic growers, this is the window to be using whatever copper material you choose.<\/li>\n
  3. Keep fungicide coverage on at 7-14 day intervals, shorter as there is more rain.<\/li>\n
  4. Keep an eye out for grape tumid gallmaker<\/a> to be popping up. If these have been a problem in your vineyard, Movento or Assail are your best materials. I don\u2019t know any organic option, so you\u2019ll need to remove them by hand.<\/li>\n
  5. Shoot thinning is still critical now, the sooner it\u2019s done, the more resources you will leave for the remaining shoots. Shoots have not lignified enough to do any combing.<\/li>\n
  6. If you suspect any nutrient deficiencies, this is a good time to collect petiole samples for analysis. I prefer the veraison timing, but bloom sampling allows for correction this season if somethings comes up particularly low. Details on petiole sampling can be found here<\/a>.<\/li>\n<\/ol>\n

    Where trade names or commercial products are used for identification, no discrimination is intended and no endorsement is implied. Always read the label before using any pesticide. The label is the legal document for the product use. Disregard any information in this message if it is in conflict with the label.<\/p>\n

    The UVM Tree Fruit and Viticulture Program is supported by the University of Vermont Agriculture Experiment Station, UVM Extension, USDA NIFA E-IPM Program, and USDA Risk Management Agency.<\/p>\n

    UVM Extension helps individuals and communities put research-based knowledge to work. University of Vermont Extension, and U.S. Department of Agriculture, cooperating, offer education and employment to everyone without regard to race, color, national origin, gender, religion, age, disability, political beliefs, sexual orientation, and marital or familial status.<\/p>\n","protected":false},"excerpt":{"rendered":"

    I apologize for this overdue communication. Some grapes at the UVM Vineyard in South Burlington were starting bloom yesterday, and we are in peak disease management season. I\u2019ll keep this brief: Pretty much every major disease is likely active now, including black rot, Phomopsis, powdery and downy mildew, and anthracnose. Vines should be protected with … Continue reading VT Grape IPM – Peak disease management<\/span><\/a><\/p>\n","protected":false},"author":2208,"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":[1],"class_list":["post-1550","post","type-post","status-publish","format-standard","hentry","tag-uncategorized"],"jetpack_publicize_connections":[],"featured_image_src":null,"featured_image_src_square":null,"author_info":{"display_name":"Terence Bradshaw","author_link":"https:\/\/blog.uvm.edu\/fruit\/author\/tbradsha\/"},"jetpack_featured_media_url":"","jetpack_sharing_enabled":true,"jetpack_shortlink":"https:\/\/wp.me\/p4nZlV-p0","_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1550","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\/2208"}],"replies":[{"embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/comments?post=1550"}],"version-history":[{"count":0,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1550\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/media?parent=1550"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/categories?post=1550"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/tags?post=1550"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}