Effective Weed Management in Soybeans - Should I Use a Residual?
Growers have faced the challenges of combating weed biotypes resistant to triazine and ALS-inhibiting herbicides. Today, there is a new concern - glyphosate resistance. With seven different glyphosate-resistant weeds (marestail, rigid ryegrass, Italian ryegrass, common and giant ragweed, Palmer amaranth [Palmer pigweed] and common waterhemp) located in 16 different states, growers who rely on glyphosate alone may find their herbicide programs falling short of expectations.
Click on the image below for a map of glyphosate resistance in the U.S.
Significant yield loss can occur if soybeans and weeds are allowed to compete for moisture and nutrients during the critical crop establishment stage. Listed below are reasons to consider a pre-emergence herbicide:
- Minimize the costly risk of yield reduction caused by weed competition
- Reduce weed density later in the season with pre-emergence residual control
- Add flexibility to your herbicide management program
- Capitalize on the true potential of your hybrid
Pre-emergence weed control is becoming increasingly important as weeds like ragweed, waterhemp and lambsquarters become more difficult to control with glyphosate. Although glyphosate was once seen as a quick fix for weed problems, growers now need to use a pre-emergence herbicide, like PrefixTM, to ensure season-long weed control.
Prefix is a Resistance FighterTM brand, meaning that Prefix added to your glyphosate-tolerant soybean program not only manages weeds more effectively, but it also adds two different modes of action to help combat glyphosate resistance.