Source: THE DAILY SCOOP, 2/18/21


Et tu, glufosinate? The first documented case of glufosinate resistance in Palmer amaranth has been recorded on U.S. farmland. The Houdini of the weed world, pigweed has slipped the herbicide cuffs once again. In 2020, following a glufosinate application on a pair of fields in northeast Arkansas’ Mississippi County, surviving Palmer amaranth plants were noted in a patchwork pattern, flagged, and subjected to a further 2% Liberty solution by Tom Barber, Extension weed scientist, University of Arkansas (UA). Ten days later, after the additional application proved largely ineffective, seed was collected for testing

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