{"id":22814,"date":"2023-09-26T13:23:58","date_gmt":"2023-09-26T17:23:58","guid":{"rendered":"https:\/\/extension.umaine.edu\/gardening\/?p=22814"},"modified":"2023-09-26T13:23:58","modified_gmt":"2023-09-26T17:23:58","slug":"do-ultrasonic-deer-repellants-work","status":"publish","type":"post","link":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/","title":{"rendered":"Do ultrasonic deer repellants work?"},"content":{"rendered":"<h3>Question:<\/h3>\n<p><strong>Do ultrasonic deer repellants work? We have a string of arborvitaes which the deer love to munch on in the wintertime. Is fencing the only other alternative? We have tried sprays and clip on deterrents but nothing like that works.<\/strong><\/p>\n<h3>Answer:<\/h3>\n<div><em>Jonathan Foster, Special Projects Assistant<\/em><\/div>\n<p>The short answer, in my experience, is that none of the products marketed for this purpose, or the truly ingenious ideas gardeners and homeowners have come up with over the years to deal with browsing deer, are effective in the long term. Deer are voracious, persistent mammals who eventually adapt to just about everything other than physical separation from the plant you want to protect. There is evidence to suggest that some deterrents\u00a0can mitigate the feeding damage, but they wash off easily and must be reapplied frequently and thoroughly; even then, they won&#8217;t be 100% effective. The other thing you can do, moving\u00a0forward, is to select deer resistant plants so as not to attract them to your yard. Obviously, that won&#8217;t help with your arborvitae, but it&#8217;s good to keep in mind that you have deer when purchasing other plants or doing landscaping. Fencing (including possibly electric) is the only sure fire way to keep the deer out of your yard and garden.<\/p>\n<p>Read more in\u00a0<a href=\"https:\/\/extension.unh.edu\/blog\/2018\/12\/keep-deer-out-your-garden-winter#:~:text=Electric%20fencing%20is%20one%20effective,to%20both%20deer%20and%20people.\" target=\"_blank\" rel=\"noopener\" data-saferedirecturl=\"https:\/\/www.google.com\/url?q=https:\/\/extension.unh.edu\/blog\/2018\/12\/keep-deer-out-your-garden-winter%23:~:text%3DElectric%2520fencing%2520is%2520one%2520effective,to%2520both%2520deer%2520and%2520people.&amp;source=gmail&amp;ust=1695835329221000&amp;usg=AOvVaw16oGgyoLQrMa-5SmcabjeJ\">this great resource from the UNH Extension.<\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Question: Do ultrasonic deer repellants work? We have a string of arborvitaes which the deer love to munch on in the wintertime. Is fencing the only other alternative? We have tried sprays and clip on deterrents but nothing like that works. Answer: Jonathan Foster, Special Projects Assistant The short answer, in my experience, is that [&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-22814","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>Do ultrasonic deer repellants work? - 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\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Do ultrasonic deer repellants work? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Question: Do ultrasonic deer repellants work? We have a string of arborvitaes which the deer love to munch on in the wintertime. Is fencing the only other alternative? We have tried sprays and clip on deterrents but nothing like that works. Answer: Jonathan Foster, Special Projects Assistant The short answer, in my experience, is that [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\" \/>\n<meta property=\"og:site_name\" content=\"Cooperative Extension: Garden and Yard\" \/>\n<meta property=\"article:published_time\" content=\"2023-09-26T17:23:58+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=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\"},\"author\":{\"name\":\"twood\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\"},\"headline\":\"Do ultrasonic deer repellants work?\",\"datePublished\":\"2023-09-26T17:23:58+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\"},\"wordCount\":229,\"articleSection\":[\"Ask the Expert\",\"Managing Insect, Diseases, and Animal Pests\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\",\"url\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\",\"name\":\"Do ultrasonic deer repellants work? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension\",\"isPartOf\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#website\"},\"datePublished\":\"2023-09-26T17:23:58+00:00\",\"author\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518\"},\"breadcrumb\":{\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/extension.umaine.edu\/gardening\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Do ultrasonic deer repellants work?\"}]},{\"@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":"Do ultrasonic deer repellants work? - 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\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/","og_locale":"en_US","og_type":"article","og_title":"Do ultrasonic deer repellants work? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension","og_description":"Question: Do ultrasonic deer repellants work? We have a string of arborvitaes which the deer love to munch on in the wintertime. Is fencing the only other alternative? We have tried sprays and clip on deterrents but nothing like that works. Answer: Jonathan Foster, Special Projects Assistant The short answer, in my experience, is that [&hellip;]","og_url":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/","og_site_name":"Cooperative Extension: Garden and Yard","article_published_time":"2023-09-26T17:23:58+00:00","author":"twood","twitter_card":"summary_large_image","twitter_misc":{"Written by":"twood","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#article","isPartOf":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/"},"author":{"name":"twood","@id":"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518"},"headline":"Do ultrasonic deer repellants work?","datePublished":"2023-09-26T17:23:58+00:00","mainEntityOfPage":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/"},"wordCount":229,"articleSection":["Ask the Expert","Managing Insect, Diseases, and Animal Pests"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/","url":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/","name":"Do ultrasonic deer repellants work? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension","isPartOf":{"@id":"https:\/\/extension.umaine.edu\/gardening\/#website"},"datePublished":"2023-09-26T17:23:58+00:00","author":{"@id":"https:\/\/extension.umaine.edu\/gardening\/#\/schema\/person\/9f0056a6c4a281b4f517e1313fa2c518"},"breadcrumb":{"@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/extension.umaine.edu\/gardening\/2023\/09\/26\/do-ultrasonic-deer-repellants-work\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/extension.umaine.edu\/gardening\/"},{"@type":"ListItem","position":2,"name":"Do ultrasonic deer repellants work?"}]},{"@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":653,"filter":"raw","cat_ID":199,"category_count":653,"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\/22814","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=22814"}],"version-history":[{"count":1,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts\/22814\/revisions"}],"predecessor-version":[{"id":22815,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/posts\/22814\/revisions\/22815"}],"wp:attachment":[{"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/media?parent=22814"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/categories?post=22814"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/extension.umaine.edu\/gardening\/wp-json\/wp\/v2\/tags?post=22814"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}