Monitoring and management strategy for Helicoverpa armigera resistance to Bt cotton in China

Wu, K (2007) Monitoring and management strategy for Helicoverpa armigera resistance to Bt cotton in China. Journal of Invertebrate Pathology, 95 (3). pp. 220-223.

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Abstract

The cotton bollworm, Helicoverpa armigera, is one of the most important insect pests in cotton growing regions of China. Transgenic cotton that expresses a gene derived from the bacterium Bacillus thuringiensis (Bt) has been deployed for combating cotton bollworm since 1997. Natural refuges derived from the mixed planting system consisting of cotton, corn, soybean, vegetables, peanut and others on single-family farms of a small scale were used for delaying the evolution of resistance to Bt cotton. Susceptibility of H. armigera field populations to the Bt insecticidal protein Cry1Ac was monitored from 1997 to 2006. The results indicate that the field populations are still susceptible to Cry1Ac, and monitoring indication no apparent shifts in susceptibility in field populations of this important pest. � 2007 Elsevier Inc. All rights reserved.

Item Type: Article
Additional Information: This research was supported by financial assistance from the Chinese Ministry of Science and Technology (973 Grant No. 2006CB102004).
Uncontrolled Keywords: Bt cotton; Helicoverpa armigera; Resistance management; Natural refugia
Author Affiliation: State Key Laboratory for Biology of Plant Diseases and Insect Pests, Institute of Plant Protection, Chinese Academy of Agricultural Sciences, Beijing 100094, China
Subjects: Plant Protection
Divisions: General
Depositing User: Mr Siva Shankar
Date Deposited: 16 Apr 2012 04:42
Last Modified: 16 Apr 2012 04:42
Official URL: http://dx.doi.org/10.1016/j.jip.2007.03.012
URI: http://eprints.icrisat.ac.in/id/eprint/4720

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