Amaranthus palmeri S. Watson (Amaranthaceae Juss.) is a dioecious noxious weed, native to the Americas, which infests summer crops. It causes high crop losses, and rapidly evolves resistance herbicides. In Europe, A. was recorded mostly as casual alien, but in 2018 it reported infesting soybean field Italy, next year two more populations were found same area. Experiments conducted on these thre...

Abstract Glyphosate-resistant (GR) horseweed interference in soybean can reduce yield up to 93%. Glyphosate plus dicamba, 2,4-D ester, halauxifen-methyl or pyraflufen-ethyl/2,4-D applied preplant (PP) provide variable GR control soybean. The objective of this study was determine if the addition saflufenacil metribuzin glyphosate halauxifen-methyl, will improve level and consistency control. Fou...