Evaluation of Herbicides for Roadside Weed Control in New Mexico

Abstract

Twenty-eight herbicides or combinations of herbicides were evaluated for selecting control for kochia and Russian thistle in grasses desirable for roadside erosion control: sideoats grama, sand dropseed, western wheatgrass, Indian ricegrass, and threeawn. Based on their ability to control weeds without injuring desirable grasses, treatments that were superior to the bromacil standard (2 lb/acre) were: bromoxynil at 0.5 and 1 lb/acre, dicamba at 1 lb/acre, and 2,4-D amine at 3 lb/acre.