{"id":95053,"date":"2026-08-20T16:20:58","date_gmt":"2026-08-20T16:20:58","guid":{"rendered":"https:\/\/site.itshrt.com\/worldnews\/huge-invasive-joro-spiders-are-spreading-in-several-states-again-heres-what-to-do-if-you-spot-one\/"},"modified":"2026-08-20T16:20:58","modified_gmt":"2026-08-20T16:20:58","slug":"huge-invasive-joro-spiders-are-spreading-in-several-states-again-heres-what-to-do-if-you-spot-one","status":"publish","type":"post","link":"https:\/\/site.itshrt.com\/worldnews\/huge-invasive-joro-spiders-are-spreading-in-several-states-again-heres-what-to-do-if-you-spot-one\/","title":{"rendered":"Huge, invasive Joro spiders are spreading in several states again. Here&#8217;s what to do if you spot one."},"content":{"rendered":"<p> <script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<\/p>\n<div id=\"\">\n<p>The large, scary-looking <a href=\"https:\/\/www.cbsnews.com\/news\/joro-spiders-invasive-species-parachuting-air-shouldnt-fear-them\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">Joro spider<\/a> that can make massive webs is popping up again in multiple states, but researchers say the <a href=\"https:\/\/www.cbsnews.com\/news\/joro-spiders-georgia-asia-invasive-species\/\" target=\"_blank\" data-invalid-url-rewritten-http=\"\">invasive species<\/a> is essentially harmless to humans.<\/p>\n<p>The spider species native to East Asia was first spotted in the U.S. in Georgia in 2014. Since then, sightings have been reported in more than a dozen states, primarily in the Southeast. <\/p>\n<p>The adult female Joro spiders are yellow with bluish-green stripes and black and yellow legs. Their bodies can be up to 1 inch long and they have a leg span up to 4 inches. Males are smaller and mostly brown in color. <\/p>\n<p>While they have been referred to as flying spiders, you won&#8217;t see one of the large adults soaring through the air. <a href=\"https:\/\/site.extension.uga.edu\/dekalb\/2025\/09\/joro-spiders-friend-or-foe\/\" target=\"_blank\" rel=\"noopener\">Researchers say<\/a> only the young spiders are capable of something called ballooning, where they release silk that catches in the wind, carrying them long distances \u2014 a technique that&#8217;s not unique to this species. <\/p>\n<p>So far this year, Joro spiders have been spotted in Georgia, the Carolinas, Tennessee and Alabama, according to <a href=\"https:\/\/jorowatch.org\/\" target=\"_blank\" rel=\"noopener\">public<\/a> <a href=\"https:\/\/www.inaturalist.org\/taxa\/904334-Trichonephila-clavata#map-tab\" target=\"_blank\" rel=\"noopener\">trackers<\/a>. <\/p>\n<p>The Great Smoky Mountains National Park, which sits on Tennessee&#8217;s border with North Carolina, told visitors Tuesday that the spiders &#8220;may be hanging in a web near you.&#8221;<\/p>\n<p>&#8220;The invasive joro spider has been slowly spreading through the Smokies, and we need your help to track its whereabouts,&#8221; <a href=\"https:\/\/www.facebook.com\/GreatSmokyMountainsNPS\/posts\/pfbid031JxxsJS5ds5zsatBTLoeQanhr8hwWwoyGvwvptSeCoNEdTp2nzPoYQAmZwAJU6qDl?rdid=3S8NbRIHTHbrXJtq\" target=\"_blank\" rel=\"noopener\">a post<\/a> on the park&#8217;s Facebook page says. <\/p>\n<div class=\"embed__float-wrap\">\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\" data-ads=\"{\" extrawordcount=\"\">\n<p>      <span class=\"img embed__content \"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets2.cbsnewsstatic.com\/hub\/i\/r\/2026\/08\/20\/eeaa47e9-0e56-4136-a4e6-1e99a6ce8914\/thumbnail\/620x444\/9ec0b72e56bc778f3223af4342bf14cc\/gettyimages-2174537764.jpg#\" alt=\"joro spider in Boston \" height=\"444\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets2.cbsnewsstatic.com\/hub\/i\/r\/2026\/08\/20\/eeaa47e9-0e56-4136-a4e6-1e99a6ce8914\/thumbnail\/620x444\/9ec0b72e56bc778f3223af4342bf14cc\/gettyimages-2174537764.jpg 1x, https:\/\/assets3.cbsnewsstatic.com\/hub\/i\/r\/2026\/08\/20\/eeaa47e9-0e56-4136-a4e6-1e99a6ce8914\/thumbnail\/1240x888\/3b62758bf51a3bc60eb9c56309eaabc0\/gettyimages-2174537764.jpg 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">Adult female Joro spiders are yellow with bluish-green stripes and black and yellow legs.<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                Stuart Cahill\/Boston Herald via Getty Images<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<\/p><\/div>\n<p>Reports of sightings will help researchers at the University of Tennessee who are mapping the spread of the species, the post says. <\/p>\n<h2>What to do if you see a Joro spider<\/h2>\n<p>If you see one of the spiders in Great Smoky Mountains National Park, take a picture and report it through the <a href=\"https:\/\/www.inaturalist.org\/\" target=\"_blank\" rel=\"noopener\">iNaturalist<\/a> app or email UTKJoroProject@utk.edu, the park says. <\/p>\n<p>Despite it being an invasive species, the park says not to disturb the spiders. <\/p>\n<p>Caitlin Jones, who identified herself as one of the researchers in the comments of the park&#8217;s post, explained why the spiders should be left alone. <\/p>\n<p>Primarily: It&#8217;s illegal to disturb wildlife in national parks.<\/p>\n<p>But another reason is spiders that are native to the region, including other orb-weavers, can easily be mistaken for Joro spiders.<\/p>\n<p>&#8220;We also don&#8217;t know what they are actually doing to our native orb-weavers,&#8221; Jones wrote in a comment. &#8220;That&#8217;s my area of research and my reason for leaving them when I see them.&#8221;<\/p>\n<p>Outside of national parks, it may not be illegal to kill the spiders, but it&#8217;s not necessarily encouraged either. Sightings can also be reported to\u00a0<a href=\"https:\/\/www.inaturalist.org\/\" target=\"_blank\" rel=\"noopener\">iNaturalist<\/a> or other <a href=\"https:\/\/jorowatch.org\/report\/\" target=\"_blank\" rel=\"noopener\">data collectors<\/a>.<\/p>\n<h2>Massive webs but minimal harm<\/h2>\n<p>The spiders are a natural pest control and currently don&#8217;t appear to harm crops or trees like some other invasive species.<\/p>\n<p>Joro spiders are also unlikely to bite humans, according to <a href=\"https:\/\/academic.oup.com\/jme\/article\/62\/6\/1396\/8296680?login=false\" target=\"_blank\" rel=\"noopener\">a study<\/a> published last year in the Journal of Medical Entomology. <\/p>\n<p>Researchers examined spider-human interactions in what they believe to be the first controlled study of spider bites.<\/p>\n<p>&#8220;During these interactions, spiders primarily moved to avoid human contact, and bites were incredibly rare, mainly occurring when spiders were forcibly restrained,&#8221; the researchers said. <\/p>\n<div class=\"embed__float-wrap\">\n<figure class=\"embed embed--type-image is-image embed--float-none embed--size-medium\" data-ads=\"{\" extrawordcount=\"\">\n<p>      <span class=\"img embed__content \"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2024\/09\/27\/ad274dc5-a9d4-4d58-a4eb-7def0ba9c5e2\/thumbnail\/620x349\/cc523c48320e1e9872b256d2f9a1ddcf\/joro-herald.jpg#\" alt=\"joro spiders \" height=\"349\" width=\"620\" class=\" lazyload\" srcset=\"https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2024\/09\/27\/ad274dc5-a9d4-4d58-a4eb-7def0ba9c5e2\/thumbnail\/620x349\/cc523c48320e1e9872b256d2f9a1ddcf\/joro-herald.jpg 1x, https:\/\/assets1.cbsnewsstatic.com\/hub\/i\/r\/2024\/09\/27\/ad274dc5-a9d4-4d58-a4eb-7def0ba9c5e2\/thumbnail\/1240x698\/b07b9e780182e1b7e3705fdb3778ab4d\/joro-herald.jpg 2x\" loading=\"lazy\"\/><\/span><figcaption class=\"embed__caption-container\">\n<p>                  <span class=\"embed__caption\">A Joro spider on Boston&#8217;s Beacon Hill<\/span><\/p>\n<p>                  <span class=\"embed__credit\"><\/p>\n<p>                Stuart Cahill\/Boston Herald via Getty Images<\/p>\n<p>                          <\/span><br \/>\n              <\/figcaption><\/figure>\n<\/p><\/div>\n<p>When bites were forced to occur, &#8220;recipients of bites reported low levels of pain, and other symptoms associated with the bite were highly localized and transient,&#8221; the authors of the study wrote.<\/p>\n<p>The spiders are unlikely to go inside homes, <a href=\"https:\/\/hgic.clemson.edu\/factsheet\/the-joro-spider\/\" target=\"_blank\" rel=\"noopener\">researchers said<\/a>, but they might make large webs on the outside of houses or other structures. If they are a nuisance around your home, experts have recommended using a broom or stick to move them and their web far away from where they were.<\/p>\n<section class=\"content__body--footer\">\n<\/section>\n<p>  <!-- data-recirc-source=\"queryly\" --><\/p>\n<aside class=\"component list recirculation component--type-recirculation  \">\n<p><h3 class=\"component__title\">More from CBS News<\/h3>\n<\/p>\n<div class=\"component__item-recirc-block\">\n<p><h3 class=\"component__title\">Go deeper with The Free Press<\/h3>\n<\/p><\/div>\n<\/aside>\n<section class=\"content__body--footer\">\n      <!-- tags --><\/p>\n<section class=\"content__tags\">\n<p class=\"content__tags__label\">In:<\/p>\n<\/section>\n<\/section><\/div>\n<p><script async src=\"https:\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js?client=ca-pub-6606220950177433\"\r\n     crossorigin=\"anonymous\"><\/script>\r\n<!-- ItShrt World News -->\r\n<ins class=\"adsbygoogle\"\r\n     style=\"display:block\"\r\n     data-ad-client=\"ca-pub-6606220950177433\"\r\n     data-ad-slot=\"1882483372\"\r\n     data-ad-format=\"auto\"\r\n     data-full-width-responsive=\"true\"><\/ins>\r\n<script>\r\n     (adsbygoogle = window.adsbygoogle || []).push({});\r\n<\/script>\r\n<br \/>\n<br \/><a href=\"https:\/\/www.cbsnews.com\/news\/joro-spiders-spreading-invasive-species-what-to-do\/\">Source link <\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>The large, scary-looking Joro spider that can make massive webs is popping up again in multiple states, but researchers say<\/p>\n","protected":false},"author":1,"featured_media":95054,"comment_status":"","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[33],"tags":[1612,8427],"class_list":["post-95053","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-us","tag-national-park","tag-spider"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.2 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Huge, invasive Joro spiders are spreading in several states again. Here&#039;s what to do if you spot one. - World News<\/title>\n<meta name=\"description\" content=\"The Great Smoky Mountains National Park told visitors Tuesday that invasive Joro spiders &amp;quot;may be hanging in a web near you.&amp;quot;\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/site.itshrt.com\/worldnews\/huge-invasive-joro-spiders-are-spreading-in-several-states-again-heres-what-to-do-if-you-spot-one\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Huge, invasive Joro spiders are spreading in several states again. 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