Herbicide resistance management
Losing herbicide options significantly affects crop producers. Fortunately, there are things you can do to prevent and manage herbicide-resistant weeds.
Corn and soybean: Herbicide diversification strategies
Pre- and postemergence herbicide diversification options and rotation intervals for glyphosate-resistant corn and soybeans. Updated January, 2021.
Herbicide classification: By sites of action
Guide to maintaining herbicide diversity and delaying resistance development.
Using layered residual herbicides to manage waterhemp in soybean
Research on this strategy’s effectiveness in Minnesota soybean, including yield and control data.
Beyond herbicides: Other strategies for managing herbicide-resistant weeds
Tips for handling weeds resistant multiple herbicide groups and planning for next year's soybean crop.
Research: Preemergence (PRE) herbicides
How preemergence (PRE) herbicides affect weed control and soybean yield in Minnesota: On-farm research on PRE vs. postemergence-only herbicide applications.
Guide to preventing herbicide-resistant weeds in Minnesota
How resistance develops, management strategies and herbicides lists by sites of action.
How to test your waterhemp population for PPO-inhibiting herbicide resistance
A testing service for crop producers, plus details about the prevalence of herbicide-resistant waterhemp in Minnesota.