Managing Palmer amaranth with multiple resistance to glyphosate, ALS, and PPO herbicides in cotton will be complicated, but control will be possible.
Preliminary results indicate that Palmer amaranth resistant to PPO herbicides is likely in Mississippi
Supplemental labeling will allow in-season applications of Sharpen to rice in 2014.
One area of concern in glyphosate-resistant (GR) Palmer amaranth management is controlling this species on turnrows, field borders, and ditchbanks. Clean crop fields surrounded on turnrows and/or ditchbanks by GR Palmer amaranth is a common sight in areas where it
When glyphosate was effective on most weeds, we were in a period of â€œweed controlâ€. However, over the last few years since glyphosate-resistant weeds have become so prevalent, we have entered a period of â€œweed managementâ€.
Using herbicides with different modes of action is an excellent resistance management tool for glyphosate-resistant Palmer amaranth.
Paraquat is a critical component of an at-planting herbicide application.