{"id":20673,"date":"2022-09-08T14:07:43","date_gmt":"2022-09-08T18:07:43","guid":{"rendered":"https:\/\/extension.umaine.edu\/gardening\/?p=20673"},"modified":"2022-09-08T14:08:45","modified_gmt":"2022-09-08T18:08:45","slug":"what-are-some-effective-methods-to-reduce-the-japanese-beetle-population","status":"publish","type":"post","link":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/","title":{"rendered":"What are some effective methods to reduce the Japanese beetle population?"},"content":{"rendered":"

Question:<\/h3>\n

The Japanese beetle population my large perennial beds has been increasing greatly every year despite hand-picking and using Captain Jack’s Deadbug Brew Spray (sparingly and in the evening, as I’m concerned about harming bees). Are there other methods that would be more effective and\/or also reduce the population?\u00a0<\/strong><\/p>\n

Answer:<\/h3>\n
Jonathan Foster, Community Education Assistant<\/em><\/div>\n

I’m sorry to hear about\u00a0your Japanese beetle woes, but rest assured you are in good company with this particular pest.<\/p>\n

The silver lining is that while the cosmetic damage can be quite irritating, especially on nice, showy plants, the plants themselves\u00a0should weather the problem\u00a0well as long as the infestation doesn’t get out of hand. So overall plant health is less of a concern. But that may be small comfort if your lovely plants are looking tattered!<\/p>\n

The easiest and least toxic method of control is simply to knock them off the leaves into a bucket of soapy water every day or two while the population persists. If they tend to fall into grass below and disappear (they let go pretty easily when bothered), or if you don’t relish handling dozens of beetles, you can spread a tarp out under the vines and gently work the foliage with a soft broom or use a hand vacuum\u00a0to suck them right off the leaves.<\/p>\n

I’ll include some Extension resources on management of Japanese beetles and their life cycle. They are an annual nuisance for many plants and the best way to mitigate the problem other than mechanical removal from the leaves is to address their grubs overwintering in nearby lawns. If the grub population can be reduced, you should notice a drop in the attendant mature beetles, as well.<\/p>\n

UMaine Japanese Beetle Fact Sheet<\/a><\/p>\n

University of New Hampshire Japanese Beetle Fact Sheet<\/a><\/p>\n

UMaine Japanese Beetle Life Cycle and Management<\/a><\/div>\n","protected":false},"excerpt":{"rendered":"

Question: The Japanese beetle population my large perennial beds has been increasing greatly every year despite hand-picking and using Captain Jack’s Deadbug Brew Spray (sparingly and in the evening, as I’m concerned about harming bees). Are there other methods that would be more effective and\/or also reduce the population?\u00a0 Answer: Jonathan Foster, Community Education Assistant […]<\/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-20673","post","type-post","status-publish","format-standard","hentry","category-ask","category-pests"],"yoast_head":"\nWhat are some effective methods to reduce the Japanese beetle population? - 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\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"What are some effective methods to reduce the Japanese beetle population? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Question: The Japanese beetle population my large perennial beds has been increasing greatly every year despite hand-picking and using Captain Jack’s Deadbug Brew Spray (sparingly and in the evening, as I’m concerned about harming bees). Are there other methods that would be more effective and\/or also reduce the population?\u00a0 Answer: Jonathan Foster, Community Education Assistant […]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\" \/>\n<meta property=\"og:site_name\" content=\"Cooperative Extension: Garden and Yard\" \/>\n<meta property=\"article:published_time\" content=\"2022-09-08T18:07:43+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-09-08T18:08:45+00:00\" \/>\n<meta name=\"author\" content=\"twood\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"twood\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"2 minutes\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\"},\"author\":{\"name\":\"twood\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\"},\"headline\":\"What are some effective methods to reduce the Japanese beetle population?\",\"datePublished\":\"2022-09-08T18:07:43+00:00\",\"dateModified\":\"2022-09-08T18:08:45+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\"},\"wordCount\":323,\"articleSection\":[\"Ask the Expert\",\"Managing Insect, Diseases, and Animal Pests\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\",\"url\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\",\"name\":\"What are some effective methods to reduce the Japanese beetle population? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#website\"},\"datePublished\":\"2022-09-08T18:07:43+00:00\",\"dateModified\":\"2022-09-08T18:08:45+00:00\",\"author\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\"},\"breadcrumb\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/extension.umaine.edu\/gardening\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"What are some effective methods to reduce the Japanese beetle population?\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#website\",\"url\":\"https:\/\/extension.umaine.edu\/gardening\/\",\"name\":\"Cooperative Extension: Garden and Yard\",\"description\":\"Information you can use. Research you can trust.\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/extension.umaine.edu\/gardening\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\",\"name\":\"twood\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g\",\"url\":\"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g\",\"contentUrl\":\"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g\",\"caption\":\"twood\"},\"url\":\"https:\/\/extension.umaine.edu\/gardening\/author\/twood\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"What are some effective methods to reduce the Japanese beetle population? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/","og_locale":"en_US","og_type":"article","og_title":"What are some effective methods to reduce the Japanese beetle population? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension","og_description":"Question: The Japanese beetle population my large perennial beds has been increasing greatly every year despite hand-picking and using Captain Jack’s Deadbug Brew Spray (sparingly and in the evening, as I’m concerned about harming bees). Are there other methods that would be more effective and\/or also reduce the population?\u00a0 Answer: Jonathan Foster, Community Education Assistant […]","og_url":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/","og_site_name":"Cooperative Extension: Garden and Yard","article_published_time":"2022-09-08T18:07:43+00:00","article_modified_time":"2022-09-08T18:08:45+00:00","author":"twood","twitter_card":"summary_large_image","twitter_misc":{"Written by":"twood","Est. reading time":"2 minutes"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#article","isPartOf":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/"},"author":{"name":"twood","@id":"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518"},"headline":"What are some effective methods to reduce the Japanese beetle population?","datePublished":"2022-09-08T18:07:43+00:00","dateModified":"2022-09-08T18:08:45+00:00","mainEntityOfPage":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/"},"wordCount":323,"articleSection":["Ask the Expert","Managing Insect, Diseases, and Animal Pests"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/","url":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/","name":"What are some effective methods to reduce the Japanese beetle population? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension","isPartOf":{"@id":"https:\/\/extension.umaine.edu\/gardening\/#website"},"datePublished":"2022-09-08T18:07:43+00:00","dateModified":"2022-09-08T18:08:45+00:00","author":{"@id":"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518"},"breadcrumb":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/extension.umaine.edu\/gardening\/2022\/09\/08\/what-are-some-effective-methods-to-reduce-the-japanese-beetle-population\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/extension.umaine.edu\/gardening\/"},{"@type":"ListItem","position":2,"name":"What are some effective methods to reduce the Japanese beetle population?"}]},{"@type":"WebSite","@id":"https:\/\/extension.umaine.edu\/gardening\/#website","url":"https:\/\/extension.umaine.edu\/gardening\/","name":"Cooperative Extension: Garden and Yard","description":"Information you can use. Research you can trust.","potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/extension.umaine.edu\/gardening\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Person","@id":"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518","name":"twood","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/fc8c7b5c8d78336ceef76f813278762e12972bcd042b075da831f24d0320bdb3?s=96&d=mm&r=g","caption":"twood"},"url":"https:\/\/extension.umaine.edu\/gardening\/author\/twood\/"}]}},"taxonomy_info":{"category":[{"value":199,"label":"Ask the Expert"},{"value":204,"label":"Managing Insect, Diseases, and Animal Pests"}]},"featured_image_src_large":false,"author_info":{"display_name":"twood","author_link":"https:\/\/extension.umaine.edu\/gardening\/author\/twood\/"},"comment_info":0,"category_info":[{"term_id":199,"name":"Ask the Expert","slug":"ask","term_group":0,"term_taxonomy_id":199,"taxonomy":"category","description":"This is the top level category for all posts submitted to our Ask the Expert gardening questions form.","parent":0,"count":652,"filter":"raw","cat_ID":199,"category_count":652,"category_description":"This is the top level category for all posts submitted to our Ask the Expert gardening questions form.","cat_name":"Ask the Expert","category_nicename":"ask","category_parent":0},{"term_id":204,"name":"Managing Insect, Diseases, and Animal Pests","slug":"pests","term_group":0,"term_taxonomy_id":204,"taxonomy":"category","description":"","parent":199,"count":196,"filter":"raw","cat_ID":204,"category_count":196,"category_description":"","cat_name":"Managing Insect, Diseases, and Animal Pests","category_nicename":"pests","category_parent":199}],"tag_info":false,"_links":{"self":[{"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts\/20673","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/users\/53"}],"replies":[{"embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/comments?post=20673"}],"version-history":[{"count":3,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts\/20673\/revisions"}],"predecessor-version":[{"id":20676,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts\/20673\/revisions\/20676"}],"wp:attachment":[{"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/media?parent=20673"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/categories?post=20673"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/tags?post=20673"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}