{"id":1412,"date":"2026-03-10T16:28:58","date_gmt":"2026-03-10T23:28:58","guid":{"rendered":"https:\/\/extension.wsu.edu\/invasive-species\/?page_id=1412"},"modified":"2026-03-11T15:22:03","modified_gmt":"2026-03-11T22:22:03","slug":"2026-knotweed-summit","status":"publish","type":"page","link":"https:\/\/extension.wsu.edu\/invasive-species\/2026-knotweed-summit\/","title":{"rendered":"2026 Washington State Knotweed Summit"},"content":{"rendered":"<div class=\"wsu-cta \" >\n\t<a \t\t\t\t\thref=\"https:\/\/wpcdn.web.wsu.edu\/wp-extension\/uploads\/sites\/3059\/2026\/02\/2026-Knotweed-Summit-Agenda-Final-2.5.26.pdf\"\t\n\t\tclass=\"wsu-button \">\n\t\t\t\n\t\tView Agenda (PDF)\t\t\t<\/a>\n<\/div>\n\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/VpmnvRUzTEk?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">WSDA Cooperative Knotweed Control Program<\/h3>\n\n\n\n<p>Jonathan Still, Washington State Department of Agriculture<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/7CtQqR69EVs?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Drones for Weed Management<\/h3>\n\n\n\n<p>Daniel Zimmerman, Washington Department of Fish and Wildlife<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/J0jGIoae4rY?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Knotweed&#8230; Now What??<\/h3>\n\n\n\n<p>Justin Brooks, King County Noxious Weed Control Program<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/3R8FYt-SdWk?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Lessons Learned &#8211; 25 Years of Knotweed on the Hoh River<\/h3>\n\n\n\n<p>Jill Silver, 10,000 Years Institute<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/ynTt3EiR44g?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Knotweed Biocontrol Efforts in Washington State<\/h3>\n\n\n\n<p>Jennifer Andreas, Washington State University<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/SIZEIMghWbQ?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Knotweed eradication Progress in the Sauk and Skagit Watersheds<\/h3>\n\n\n\n<p>Scott Morris, Sauk-Suiattle Indian Tribe<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/pdAG7HGlpYs?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Snoqualmie Indian Tribe Environmental and Natural Resources Department &#8211; Noxious Weed Management<\/h3>\n\n\n\n<p>Michael Bailey, Snoqualmie Indian Tribe Environmental and Natural Resources Department<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<div class=\"wsu-row wsu-row--sidebar-left\" >\r\n    \n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<div class='embed-youtube' style='text-align:center; display: block;'><iframe class='youtube-player' type='text\/html' width='640' height='390' src='https:\/\/www.youtube.com\/embed\/754m8SUOzu0?version=3&#038;rel=1&#038;fs=1&#038;autohide=2&#038;showsearch=0&#038;showinfo=1&#038;iv_load_policy=1&#038;wmode=transparent' frameborder='0' allowfullscreen='true'><\/iframe><\/div>\n<\/div><\/figure>\n\n<\/div>\r\n\n\n<div class=\"wsu-column\"  style=\"\">\r\n\t\n\n<h3 class=\"wp-block-heading\">Invasive Plant Mapping and Control in the Stillaguamish Basin with a Focus on Knotweed<\/h3>\n\n\n\n<p>Scott Morris, Sauk-Suiattle Indian Tribe<\/p>\n\n\n\n<p>Recorded on February 18, 2026<\/p>\n\n<\/div>\r\n\n<\/div>\n\n\n<hr class=\"wp-block-separator has-css-opacity\" \/>\n\n\n<script type=\"text\/javascript\">var gform;gform||(document.addEventListener(\"gform_main_scripts_loaded\",function(){gform.scriptsLoaded=!0}),window.addEventListener(\"DOMContentLoaded\",function(){gform.domLoaded=!0}),gform={domLoaded:!1,scriptsLoaded:!1,initializeOnLoaded:function(o){gform.domLoaded&&gform.scriptsLoaded?o():!gform.domLoaded&&gform.scriptsLoaded?window.addEventListener(\"DOMContentLoaded\",o):document.addEventListener(\"gform_main_scripts_loaded\",o)},hooks:{action:{},filter:{}},addAction:function(o,n,r,t){gform.addHook(\"action\",o,n,r,t)},addFilter:function(o,n,r,t){gform.addHook(\"filter\",o,n,r,t)},doAction:function(o){gform.doHook(\"action\",o,arguments)},applyFilters:function(o){return 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