{"id":1190,"date":"2019-05-05T20:52:35","date_gmt":"2019-05-06T00:52:35","guid":{"rendered":"https:\/\/blog.uvm.edu\/fruit\/?p=1190"},"modified":"2019-05-05T20:52:35","modified_gmt":"2019-05-06T00:52:35","slug":"grape-flea-beetle-weed-management","status":"publish","type":"post","link":"https:\/\/blog.uvm.edu\/fruit\/2019\/05\/05\/grape-flea-beetle-weed-management\/","title":{"rendered":"Grape flea beetle, weed management"},"content":{"rendered":"

By Terence Bradshaw<\/a><\/p>\n

May 5, 2019<\/p>\n

\"\"<\/a><\/p>\n

Buds are swelling in Vermont orchards. I haven\u2019t looked at our vines in South Burlington since Friday, and they were fully swelled then, but I cleaned up my vines at home (1500\u2019 elevation, Washington county) today and they were quite swelled up. I expect bud break any day now. Flea beetles are the main insect of concern at this point, and really only when bud swell through 1\u201d shoot growth is slowed and the buds remain at this susceptible state for more than a week or so. It\u2019s a good idea to keep an eye on buds and consider treating if more than 2% of buds are damaged. Remember, <\/em> buds are no longer susceptible after 1\u201d shoot growth, so if you make it past that stage, then don\u2019t worry about them. This is really only a problem in years with a cool, drawn-out spring, and even then, the damage is rarely of economic significance. Clearing brush piles from around vineyard edges can help to reduce this pest.<\/p>\n

Now that buds are swelling, I\u2019d avoid use of systemic herbicides in vineyards unless you have a really good shield system to avoid contact with green tissue. This is a good time to burn down weeds, though, and an application of glufosinate can be effective now. Adding a premergent material like Chateau can extend weed control for a longer period. On the other hand, I find that in-row vegetation can help with excess soil moisture and vine vigor, as long as it is managed<\/em>. I\u2019m not promoting just letting the weeds go in a planting, and groundcover should be mowed and kept out of the canopy during the growing season.<\/p>\n

Where trade names or commercial products are used for identification,<\/p>\n

no discrimination is intended and no endorsement is implied.<\/p>\n

Always read the label before using any pesticide.<\/p>\n

The label is the legal document for the product use.<\/p>\n

Disregard any information in this message if it is in conflict with the<\/p>\n

label.<\/p>\n

The UVM Tree Fruit and Viticulture Program is supported by the<\/p>\n

University of Vermont Agriculture Experiment Station, a USDA NIFA E-IPM<\/p>\n

Grant, and USDA Risk Management Agency Funds.<\/p>\n","protected":false},"excerpt":{"rendered":"

By Terence Bradshaw May 5, 2019 Buds are swelling in Vermont orchards. I haven\u2019t looked at our vines in South Burlington since Friday, and they were fully swelled then, but I cleaned up my vines at home (1500\u2019 elevation, Washington county) today and they were quite swelled up. I expect bud break any day now. … Continue reading Grape flea beetle, weed management<\/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":[109235,36708],"class_list":["post-1190","post","type-post","status-publish","format-standard","hentry","tag-grape","tag-ipm"],"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-jc","_links":{"self":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1190","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=1190"}],"version-history":[{"count":1,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1190\/revisions"}],"predecessor-version":[{"id":1192,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/posts\/1190\/revisions\/1192"}],"wp:attachment":[{"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/media?parent=1190"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/categories?post=1190"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/blog.uvm.edu\/fruit\/wp-json\/wp\/v2\/tags?post=1190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}