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Changes in Herbicide Use Patterns and Production Practices Resulting from Glyphosate-Resistant Crops

Published online by Cambridge University Press:  20 January 2017

Bryan G. Young
Bryan G. Young*
Affiliation:
Department of Plant, Soil, and Agricultural Systems, Southern Illinois University, 1205 Lincoln Drive, MC-4415, Carbondale, IL 62901
*
Corresponding author's E-mail: bgyoung@siu.edu
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Abstract

Recent shifts in herbicide use patterns can be attributed to rapid, large-scale adoption of glyphosate-resistant soybean and cotton. A dramatic increase in glyphosate use is the most obvious change associated with the adoption of glyphosate-resistant crops. Consequently, the diversity of herbicides used for weed management in these crops has declined, particularly in soybean. To date, the availability of glyphosate-resistant corn has limited the use of glyphosate in corn. While exploiting the benefits of glyphosate-resistant crops, many growers have abandoned the principles of sound weed and herbicide-resistance management. Instead of incorporating glyphosate into a resistance management strategy utilizing multiple herbicide sites of action, many growers rely exclusively upon glyphosate for weed control. Although it is difficult to establish a clear relationship between the adoption of glyphosate-resistant crops and changes in other crop production practices, the increase in no-till and strip-till production of cotton and soybean between 1995 and 2002 may have been facilitated by glyphosate-resistant crops.

Keywords

Glyphosatecorn, Zea mays L.cotton, Gossypium hirsutum L.soybean, Glycine max L.Application timingherbicide-resistance managementmode of actionsite of actiontank mixturestillageweed management strategies
Type
Research Article
Information
Weed Technology , Volume 20 , Issue 2 , June 2006 , pp. 301 - 307
Copyright
Copyright © Weed Science Society of America 

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