Herbicide resistance work in the United States Department of Agriculture-Agricultural Research Service

摘要

Herbicide-resistant weed biotypes are an increasing problem in agriculture, with reports of resitance to almost every herbicide class at some place in the world, and the total number of resistant biotypes at over 250. Agricultural Research Service (ARS) scientists have been key players in this area since the first substantiated occurence of these resistance biotpes in the 1970s. The most significant of their contributions is the complete unraveling of the mechanism of triazine resistance by Arntzen and colleagues, then with ARS at the University of Illinois. These studies established a hig h banchmark for research in this area and are a model for all studies in this area. Other ARS scientists have investigated a large number of weed biotypes with resistance to a wide range of herbicide classes and mechanisms of resistance. Collectively, these studies have been used to generate herbicide resistance-management schemes for growners, based uon the herbicide site and the potential for resistance development.