Most row crop producers in Alabama have adopted some form of conservation tillage and are increasingly challenged with controlling glyphosate-resistant weeds. Dicamba is used for controlling glyphosate-resistant horseweed within wheat and corn and prior to cotton. However, producers reported control issues using dicamba in 2012 and 2013. Previous research has shown fields with winter crops usually contain fewer winter weeds compared to systems that contain winter fallow rotations. Thus, wheat fields harvested for grain preceding soybean or utilized as cover preceding corn or cotton should have fewer horseweed to chemically control in subsequent crop. The study evaluates both cultural and chemical weed control options, evaluating horseweed biomass and herbicide efficacy.Key Benefactors: farmers, agronomists, Extension agents
The study will evaluate both cultural and chemical weed control options. Each treatment will be replicated 4 times. Horseweed biomass and herbicide efficacy will be evaluated.
The United Soybean Research Retention policy will display final reports with the project once completed but working files will be purged after three years. And financial information after seven years. All pertinent information is in the final report or if you want more information, please contact the project lead at your state soybean organization or principal investigator listed on the project.