{"id":20500,"date":"2022-08-17T14:30:09","date_gmt":"2022-08-17T18:30:09","guid":{"rendered":"https:\/\/extension.umaine.edu\/gardening\/?p=20500"},"modified":"2022-08-17T14:31:55","modified_gmt":"2022-08-17T18:31:55","slug":"how-do-you-treat-hemlocks-with-an-infestation-of-woolly-adelgid","status":"publish","type":"post","link":"https:\/\/extension.umaine.edu\/gardening\/2022\/08\/17\/how-do-you-treat-hemlocks-with-an-infestation-of-woolly-adelgid\/","title":{"rendered":"How do you treat Hemlocks with an infestation of Woolly Adelgid?"},"content":{"rendered":"<h3>Question:<\/h3>\n<p><strong>How do you treat Hemlocks with an infestation of Woolly Adelgid? These hemlocks are within 50 feet of two drilled wells.<\/strong><\/p>\n<h3>Answer:<\/h3>\n<div><em>Donna R. Coffin, Extension Professor<\/em><\/div>\n<p>First you need to be sure you are dealing with the Hemlock Woolly Adelgid.\u00a0<a href=\"https:\/\/www.maine.gov\/dacf\/mfs\/forest_health\/insects\/hemlock_woolly_adelgid_overview.htm\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.maine.gov\/dacf\/mfs\/forest_health\/insects\/hemlock_woolly_adelgid_overview.htm&amp;source=gmail&amp;ust=1660827258008000&amp;usg=AOvVaw1-WfyDwA0rBey9VqT-bPSl\">There are some look alikes.<\/a><\/p>\n<p>Once you are sure you have HWA if you haven&#8217;t already, you will want to report it to the\u00a0<a href=\"https:\/\/appengine.egov.com\/apps\/me\/dacf\/mfs-tree-ailment\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/appengine.egov.com\/apps\/me\/dacf\/mfs-tree-ailment&amp;source=gmail&amp;ust=1660827258008000&amp;usg=AOvVaw0xJs-OLxcy3X3NAtM6Uwq2\">state forest service.<\/a>\u00a0This is important since they are deploying biological controls.<\/p>\n<p>The two best options for homeowners to treat are dormant oil or insecticidal soap. There is a caution, not to spray drought stressed trees, so you may need to wait until your area gets more rain.<\/p>\n<p>Here is the Maine Forest Service factsheet on\u00a0<a href=\"https:\/\/www.maine.gov\/dacf\/mfs\/forest_health\/insects\/hemlock_woolly_adelgid_fact_sheet.htm\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/www.maine.gov\/dacf\/mfs\/forest_health\/insects\/hemlock_woolly_adelgid_fact_sheet.htm&amp;source=gmail&amp;ust=1660827258008000&amp;usg=AOvVaw2rbu1DV1yb7nCjQNYH6MHx\">Hemlock Woolly Adelgid.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Question: How do you treat Hemlocks with an infestation of Woolly Adelgid? These hemlocks are within 50 feet of two drilled wells. Answer: Donna R. Coffin, Extension Professor First you need to be sure you are dealing with the Hemlock Woolly Adelgid.\u00a0There are some look alikes. Once you are sure you have HWA if you [&hellip;]<\/p>\n","protected":false},"author":53,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[199,204],"tags":[],"class_list":["post-20500","post","type-post","status-publish","format-standard","hentry","category-ask","category-pests"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How do you treat Hemlocks with an infestation of Woolly Adelgid? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension<\/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:\/\/extension.umaine.edu\/gardening\/2022\/08\/17\/how-do-you-treat-hemlocks-with-an-infestation-of-woolly-adelgid\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How do you treat Hemlocks with an infestation of Woolly Adelgid? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Question: How do you treat Hemlocks with an infestation of Woolly Adelgid? 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