{"id":4566,"date":"2013-11-07T14:31:41","date_gmt":"2013-11-07T19:31:41","guid":{"rendered":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/?page_id=4566"},"modified":"2019-03-27T12:29:14","modified_gmt":"2019-03-27T16:29:14","slug":"horsehair-worms","status":"publish","type":"page","link":"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/horsehair-worms\/","title":{"rendered":"Horsehair Worms"},"content":{"rendered":"<figure id=\"4075\" class=\"wp-caption alignleft\"><a href=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1.jpg\" target=\"_blank\" rel=\"noopener\"><img loading=\"lazy\" decoding=\"async\" class=\"wp-image-4075 \" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-300x290.jpg\" alt=\"a Horsehair worm and a US penny for scale purposes\" width=\"230\" height=\"222\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-300x290.jpg 300w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-105x102.jpg 105w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-317x307.jpg 317w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-423x410.jpg 423w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1-32x32.jpg 32w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd1.jpg 535w\" sizes=\"auto, (max-width: 320px) 85vw, (max-width: 768px) 67vw, (max-width: 1024px) 62vw,230px\" \/><\/a><figcaption class=\"wp-caption-text\">Horsehair Worm<\/figcaption><\/figure>\n<p><b>Horsehair worms<\/b>&#8211;also known as Gordian worms&#8211;are, to say the least, rather mysterious creatures to anyone unfamiliar with them.\u00a0 These thin, spaghetti-like worms can reach lengths upwards of 3 ft. and resemble the &#8216;hair&#8217; of a horse&#8217;s tail or mane, and belong to a phylum called Nematomorpha because of their morphological resemblance to nematode roundworms.\u00a0 The larvae of these peculiar worms are parasitic, but are harmless to humans, livestock, plants, and pets.\u00a0 Their host organisms are commonly crickets and grasshoppers, but beetles, cockroaches, spiders, and some crustaceans can also be infested.<\/p>\n<p>Horsehair worms&#8211;free living as adults&#8211;are considered beneficial, since crickets are such a common host.\u00a0 Therefore, no control measures are needed if you find one of these interesting worms.<\/p>\n\n\t\t<style type=\"text\/css\">\n\t\t\t#gallery-1 {\n\t\t\t\tmargin: auto;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-item {\n\t\t\t\tfloat: left;\n\t\t\t\tmargin-top: 10px;\n\t\t\t\ttext-align: center;\n\t\t\t\twidth: 16%;\n\t\t\t}\n\t\t\t#gallery-1 img {\n\t\t\t\tborder: 2px solid #cfcfcf;\n\t\t\t}\n\t\t\t#gallery-1 .gallery-caption {\n\t\t\t\tmargin-left: 0;\n\t\t\t}\n\t\t\t\/* see gallery_shortcode() in wp-includes\/media.php *\/\n\t\t<\/style>\n\t\t<div id='gallery-1' class='gallery galleryid-4566 gallery-columns-6 gallery-size-thumbnail'><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd2.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd2-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Photo showing a Horsehair worm that has emerged from its host cricket\" aria-describedby=\"gallery-1-4076\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd2-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2013\/02\/Horsehair-Worm-gmd2-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-4076'>\n\t\t\t\tA Horsehair worm that has emerged from its host cricket\n\t\t\t\t<\/dd><\/dl><dl class='gallery-item'>\n\t\t\t<dt class='gallery-icon landscape'>\n\t\t\t\t<a href='https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/03\/Horsehair-Worm-gmd3.jpg'><img loading=\"lazy\" decoding=\"async\" width=\"150\" height=\"150\" src=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/03\/Horsehair-Worm-gmd3-150x150.jpg\" class=\"attachment-thumbnail size-thumbnail\" alt=\"Photo that shows a Horsehair worm inside a 3.5&quot; diameter petri dish\" aria-describedby=\"gallery-1-8588\" srcset=\"https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/03\/Horsehair-Worm-gmd3-150x150.jpg 150w, https:\/\/extension.umaine.edu\/home-and-garden-ipm\/wp-content\/uploads\/sites\/43\/2019\/03\/Horsehair-Worm-gmd3-32x32.jpg 32w\" sizes=\"auto, (max-width: 150px) 100vw, 150px\" \/><\/a>\n\t\t\t<\/dt>\n\t\t\t\t<dd class='wp-caption-text gallery-caption' id='gallery-1-8588'>\n\t\t\t\tHorsehair worm inside a 3.5&#8243; diameter petri dish\n\t\t\t\t<\/dd><\/dl>\n\t\t\t<br style='clear: both' \/>\n\t\t<\/div>\n\n<hr \/>\n<h3>Additional Information:<\/h3>\n<ul>\n<li><strong><a href=\"http:\/\/www.ipm.iastate.edu\/ipm\/iiin\/horsehai.html\" target=\"_blank\" rel=\"noopener\"><b>Horsehair Worm<\/b><\/a><\/strong> (Iowa State University)<\/li>\n<li><strong><a href=\"https:\/\/www.youtube.com\/watch?v=bIJbu3re8Lk\" target=\"_blank\" rel=\"noopener\"><b>YouTube Horsehair Worm Video<\/b><\/a><\/strong> (video shows a Horsehair Worm emerging from a dead spider)<\/li>\n<\/ul>\n<hr \/>\n","protected":false},"excerpt":{"rendered":"<p>Horsehair worms&#8211;also known as Gordian worms&#8211;are, to say the least, rather mysterious creatures to anyone unfamiliar with them.\u00a0 These thin, spaghetti-like worms can reach lengths upwards of 3 ft. and resemble the &#8216;hair&#8217; of a horse&#8217;s tail or mane, and belong to a phylum called Nematomorpha because of their morphological resemblance to nematode roundworms.\u00a0 The [&hellip;]<\/p>\n","protected":false},"author":60,"featured_media":0,"parent":1561,"menu_order":17,"comment_status":"closed","ping_status":"closed","template":"","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":""},"class_list":["post-4566","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Horsehair Worms - Home and Garden IPM from Cooperative Extension - 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\/home-and-garden-ipm\/fact-sheets\/common-name-listing\/horsehair-worms\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Horsehair Worms - Home and Garden IPM from Cooperative Extension - University of Maine Cooperative Extension\" \/>\n<meta property=\"og:description\" content=\"Horsehair worms&#8211;also known as Gordian worms&#8211;are, to say the least, rather mysterious creatures to anyone unfamiliar with them.\u00a0 These thin, spaghetti-like worms can reach lengths upwards of 3 ft. and resemble the &#8216;hair&#8217; 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