If you need an accessible version of this item please contact JSTOR User Support

Navigating a Critical Juncture for Sustainable Weed Management

David A. Mortensen, J. Franklin Egan, Bruce D. Maxwell, Matthew R. Ryan and Richard G. Smith
BioScience
Vol. 62, No. 1 (January 2012), pp. 75-84
DOI: 10.1525/bio.2012.62.1.12
Stable URL: http://www.jstor.org/stable/10.1525/bio.2012.62.1.12
Page Count: 10
  • Download PDF
  • Cite this Item

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If you need an accessible version of this item please contact JSTOR User Support
Navigating a Critical Juncture for Sustainable Weed Management
Preview not available

Abstract

Agricultural weed management has become entrenched in a single tactic—herbicide-resistant crops—and needs greater emphasis on integrated practices that are sustainable over the long term. In response to the outbreak of glyphosate-resistant weeds, the seed and agrichemical industries are developing crops that are genetically modified to have combined resistance to glyphosate and synthetic auxin herbicides. This technology will allow these herbicides to be used over vastly expanded areas and will likely create three interrelated challenges for sustainable weed management. First, crops with stacked herbicide resistance are likely to increase the severity of resistant weeds. Second, these crops will facilitate a significant increase in herbicide use, with potential negative consequences for environmental quality. Finally, the short-term fix provided by the new traits will encourage continued neglect of public research and extension in integrated weed management. Here, we discuss the risks to sustainable agriculture from the new resistant crops and present alternatives for research and policy.

Page Thumbnails