By Dusty Sonnenberg, CCA, Ohio Field Leader: a project of the Ohio Soybean Council and soybean checkoff
Weed control is one of the major challenges that soybean farmers face every year. Crop yields can be reduced by as much as 80% when weeds are left uncontrolled. In the Midwest, weed pressure can account for up to 39% yield loss in soybeans. On average, weed pressure impacts soybean yield more than pressure from insects, animals, and diseases combined.
Alyssa Essman is a Weed Science Research Associate at The Ohio State University, and has conducted research looking at the interaction between cover crops and weed control. She studied the impact of “planting green,” or terminating cover crops after planting soybeans, and the effect on weed control and soybean yield.
When evaluating weed control programs in Ohio, producers often think about the “Big 5” weeds that are most troublesome.