The increasing prevalence of fall herbicide applications for control of winter annual weeds may indicate the awareness of the benefits that these applications provide. Fall applications of herbicides may be the most effective timing to control a number of annual and perennial weeds, including some of our tough-to-control herbicide-resistant weeds like marestail. 

Fields where weeds are managed in the fall are often the most weed-free in the spring. Elimination of weed growth in the fall allows the soil...