Reducing the Risks of Herbicide Resistance: Best Management Practices and Recommendations

Herbicides are the foundation of weed control in commercial crop-production systems. However, herbicide-resistant (HR) weed populations are evolving rapidly as a natural response to selection pressure imposed by modern agricultural management activities. Mitigating the evolution of herbicide resista...

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Bibliographic Details
Published in:Weed science 2012, Vol.60 (sp1), p.31-62
Main Authors: Norsworthy, Jason K, Ward, Sarah M, Shaw, David R, Llewellyn, Rick S, Nichols, Robert L, Webster, Theodore M, Bradley, Kevin W, Frisvold, George, Powles, Stephen B, Burgos, Nilda R, Witt, William W, Barrett, Michael
Format: Article
Language:English
Subjects:
Agricultural management
Best management practices
Cotton
Crop management
Crops
Economics
Education
Evolution
Genotypes
Herbicide resistance
Herbicide resistant weeds
Herbicides
Pollen
Risk reduction
Seed banks
Seeds
Weed Biology and Ecology
Weed control
Weeds
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Summary:Herbicides are the foundation of weed control in commercial crop-production systems. However, herbicide-resistant (HR) weed populations are evolving rapidly as a natural response to selection pressure imposed by modern agricultural management activities. Mitigating the evolution of herbicide resistance depends on reducing selection through diversification of weed control techniques, minimizing the spread of resistance genes and genotypes via pollen or propagule dispersal, and eliminating additions of weed seed to the soil seedbank. Effective deployment of such a multifaceted approach will require shifting from the current concept of basing weed management on single-year economic thresholds.
ISSN:0043-1745
1550-2759
DOI:10.1614/WS-D-11-00155.1