{"id":1329,"date":"2020-05-22T08:32:10","date_gmt":"2020-05-22T12:32:10","guid":{"rendered":"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/22\/fire-blight-streptomycin-questions\/"},"modified":"2020-05-22T08:32:10","modified_gmt":"2020-05-22T12:32:10","slug":"fire-blight-streptomycin-questions","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/22\/fire-blight-streptomycin-questions\/","title":{"rendered":"Fire blight &amp; streptomycin questions"},"content":{"rendered":"<p>By <a href=\"mailto:Terence.Bradshaw@uvm.edu\">Terence Bradshaw<\/a><\/p>\n<p>I\u2019ve received a few questions about the fire blight alert:<\/p>\n<ol start=\"1\">\n<li>If you are in an inland\/upland site and no bloom or fresh pruning wounds, this alert does not apply. However, I bet most apples in the state, aside from some late cider varieties, will be in bloom before this disease alert is done.<\/li>\n<li>Strep can be applied within 24 hours before or after an infection \/ wetting event. So you <em>could<\/em> wait to see if there is dew, but need to <em>know<\/em> that there\u2019s no dew if you decide to hold off. Dr. David Rosenberger from Cornell has also been discussing the possibility that high humidity may be enough to cause infections. Bottom line- I\u2019d get out there sometime if you have any risk (susceptible blooming varieties, past history).<\/li>\n<li>A treated flower is a treated flower. So if you\u2019re at full bloom and you\u2019re going to treat anyway, treat any time.<\/li>\n<li>Rate: I was corrected on the rate of streptomycin that I\u2019d recommended, which I\u2019d passed on from another extension warning without reading the label. Harbour is the main (only?) brand of strep we use in the state, and it is <a href=\"https:\/\/s3-us-west-1.amazonaws.com\/agrian-cg-fs1-production\/pdfs\/Harbour1l_Label.pdf\"> labeled<\/a> for 24-48 ounces per acre. The first application should include Regulaid or similar wetting agent, subsequent sprays, if applied, can and should omit the wetting agent to reduce phytotoxicity.<br \/>\nThe Harbour label is a bit confusing, as it makes some jumps from concentration to rate with an implied understanding of (and I\u2019d say controversial application of) tree row volume. We\u2019ll discuss TRV another time, not during an important disease event. Stick to the label rate, which is 24-48 ounces per acre.<\/li>\n<\/ol>\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 I\u2019ve received a few questions about the fire blight alert: If you are in an inland\/upland site and no bloom or fresh pruning wounds, this alert does not apply. However, I bet most apples in the state, aside from some late cider varieties, will be in bloom before this disease alert is &hellip; <a href=\"https:\/\/blog.uvm.edu\/fruit\/2020\/05\/22\/fire-blight-streptomycin-questions\/\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Fire blight &amp; streptomycin questions<\/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-1329","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-lr","_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1329","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=1329"}],"version-history":[{"count":0,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1329\/revisions"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/media?parent=1329"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/categories?post=1329"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/tags?post=1329"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}