{"id":24730,"date":"2018-05-09T13:38:02","date_gmt":"2018-05-09T12:38:02","guid":{"rendered":"http:\/\/blog.journals.cambridge.org\/?p=24730"},"modified":"2018-06-08T13:56:39","modified_gmt":"2018-06-08T12:56:39","slug":"scientists-confirm-first-case-of-waterhemp-with-six-way-resistance","status":"publish","type":"post","link":"https:\/\/www.cambridge.org\/core\/blog\/2018\/05\/09\/scientists-confirm-first-case-of-waterhemp-with-six-way-resistance\/","title":{"rendered":"Scientists Confirm First Case of Waterhemp With Six-Way Resistance"},"content":{"rendered":"<div id=\"bsf_rt_marker\"><\/div><blockquote><p>A study featured in the journal <a href=\"https:\/\/www.cambridge.org\/core\/journals\/weed-science\" target=\"_blank\" rel=\"noopener\">Weed Science<\/a> is certain to keep many corn and soybean growers up at night. Researchers have identified a waterhemp population in Missouri that is resistant to a record-breaking six herbicide mechanisms of action.<\/p><\/blockquote>\n<p>It all started when growers in Randolph County, Missouri, reported a population of waterhemp that appeared to be resistant to 2,4-D.\u00a0 Researchers from the University of Missouri conducted field experiments that confirmed the 2,4-D resistance. But they also found the same waterhemp population was resistant to atrazine, chlorimuron, fomesafen, glyphosate and mesotrione. \u00a0Of the eight herbicides applied, only dicamba and glufosinate provided acceptable control.<\/p>\n<p>The results are sobering \u2013 especially for anyone waiting on the approval of 2,4-D\u2013resistant corn and soybean as a way to manage glyphosate resistance. If we\u2019re already seeing 2,4-D resistance now, what will happen when use of the herbicide becomes even more commonplace?<\/p>\n<p>Researchers say six-way resistant waterhemp demands a diversified approach. Rather than relying on glyphosate, 2,4-D or any other single herbicide, it\u2019s time to focus on a variety of appropriate cultural, mechanical and biological control tactics.<\/p>\n<p>Want to learn more? Read the full text of the article \u201c<a href=\"https:\/\/www.cambridge.org\/core\/journals\/weed-science\/article\/investigations-of-24d-and-multiple-herbicide-resistance-in-a-missouri-waterhemp-amaranthus-tuberculatus-population\/04C7A3FCB6D30C19F8D1727263DBEF13\" target=\"_blank\" rel=\"noopener\">Investigations of 2,4-D and Multiple Herbicide Resistance in a Missouri Waterhemp (<em>Amaranthus rudis<\/em>) Population<\/a><em>\u201d<\/em> in <a href=\"https:\/\/www.cambridge.org\/core\/journals\/weed-science\" target=\"_blank\" rel=\"noopener\"><em>Weed Science<\/em><\/a> Vol. 66, Issue 3.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A study featured in the journal Weed Science is certain to keep many corn and soybean growers up at night. Researchers have identified a waterhemp population in Missouri that is resistant to a record-breaking six herbicide mechanisms of action. It all started when growers in Randolph County, Missouri, reported a population of waterhemp that appeared [&hellip;]<\/p>\n","protected":false},"author":547,"featured_media":24738,"comment_status":"open","ping_status":"open","sticky":true,"template":"","format":"standard","meta":{"footnotes":""},"categories":[612,19,1,9],"tags":[4592,4593,4596,4594,4597,3988,4595,2195,2199,2196],"coauthors":[2780],"class_list":["post-24730","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-agriculture-animal-science","category-life-sciences","category-news","category-science-technology","tag-atrazine","tag-chlorimuron","tag-dicamba","tag-fomesafen","tag-glufosinate","tag-glyphosate","tag-mesotrione","tag-weed-science","tag-weed-science-society-of-america","tag-wssa"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/posts\/24730","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/users\/547"}],"replies":[{"embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/comments?post=24730"}],"version-history":[{"count":0,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/posts\/24730\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/media\/24738"}],"wp:attachment":[{"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/media?parent=24730"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/categories?post=24730"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/tags?post=24730"},{"taxonomy":"author","embeddable":true,"href":"https:\/\/www.cambridge.org\/core\/blog\/wp-json\/wp\/v2\/coauthors?post=24730"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}