b'PYROXASULFONE IN POTATO PRODUCTIONPyroxasulfone, marketed under the trade name Zidua by BASF, was recently registered for potato weed control in the United States. Prior to this registra-tion Andy Robinson, who leads the Extension Potato Agronomy team at North Dakota State University (NDSU) and the University of Minnesota, wanted to find out the effects of pyroxasulfone on cultivar tolerance and how it works in tank mixes.Pyroxasulfone is used as pre-emergent herbicide for potatoes. It inhibits biosynthesis over fatty acids is less water soluble, so there is less chance of leaching and staying around longer for weed control. It offers protection against a wide array of weeds such as rye grass, foxtail species, crab grasses, water hemp and some nightshade species. For the study the group planted and hilled the plants, placing the herbicide four inches below the surface to allow the shoots room to grow and not interact with the herbicide right away. There were three treatments applied for each cultivar, representing a zero, 1x and 2x rate. We observed very good weed control in general, Robinson explains during his presentation. Pyroxasulfone is not a standalone herbicide. You do need to tank mix it with other products for it to be effectiveas far as crop injury goes. It was insignificant.There was also not found to be a decrease in yield, in some cases there was even an increase actually.For more information on this research visit: https://www.ag.ndsu.edu/potatoextension Andy Robinson,Pyroxasulfone is not a standalonewho leads the ExtensionPotato Agronomy team at North herbicide. You do need to tank mixDakota State University (NDSU) and the University of Minnesota, it with other products for it to belooked into how pyroxasulfone effectiveas far as crop injury goes.effects cultivar tolerance and how it works in tank mixes. It was insignificant.PHOTO: ANDY ROBINSONANDY ROBINSONFALL 2020 SPUDSMART.COM 21'