TIPS ON WATERHEMP MANAGEMENT IN SOYBEANS
2018
- Dept. of Agronomy, Univ. of Wisconsin-Madison
Project Media
Waterhemp has become one of the most troublesome weeds in row crop
production in the Midwest. Though not as widespread like in southern neighboring
states, glyphosate-resistant waterhemp populations have been confirmed in 25
Wisconsin counties; moreover resistance to ALS- and PPO-inhibiting herbicides in
waterhemp have also been confirmed in the state (see Stoltenberg’s paper in this
proceedings for complete information). Reduced tillage, herbicide resistance, and
less diversified herbicide programs and crop rotations are the main factors that have
contributed to waterhemp establishment in row crop production systems (Nordby et
al., 2007).