Benchmark study on glyphosate‐resistant cropping systems in the United States. Part 4: Weed management practices and effects on weed populations and soil seedbanks

Abstract

Diversifying herbicides reduces weed population densities and lowers the risk of weed population shifts and the associated potential for the evolution of glyphosate-resistant weeds in continuous GR crops. Altered weed management practices (e.g. herbicides or tillage) enabled by rotating crops, whether GR or non-GR, improves weed management and thus minimizes the effectiveness of only using chemical tactics to mitigate weed population shifts.