Effects of Transgenic Bt Cotton on the Population Density, Oviposition Behavior, Development, and Reproduction of a Nontarget Pest, Adelphocoris suturalis (Hemiptera: Miridae)
文献类型： 外文期刊
作者： Li, Guoping 1 ; Feng, Hongqiang 1 ; Chen, Pieyu 2 ; Wu, Shaoying 2 ; Liu, Bing 1 ; Qiu, Feng 1 ;
作者机构： 1.Henan Acad Agr Sci, Inst Plant Protect, Zhengzhou 450002, Peoples R China
2.Henan Agr Univ, Coll Plant Protect, Zhengzhou 450002, Peoples R China
关键词： pesticides;population density;oviposition behavior;nontarget pest outbreak
期刊名称：ENVIRONMENTAL ENTOMOLOGY （ 影响因子：2.377； 五年影响因子：2.298 ）
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收录情况： SCI
摘要： Transgenic cotton has shown great promise for the control of target pest insects; however, frequent outbreaks of nontarget pest minds has been recorded in recent years in northern China. To test the hypothesis that transgenic cotton contributes to nontarget pest outbreaks, we studied the impact of transgenic Bt cottons (both Bt and Bt + CpTI) on the fitness of nontarget pest Adelphocoris suturalis Jakovlev. No significant differences were detected between population densities of A. suturalis in unsprayed nontransgenic cottons and in unsprayed transgenic Bt cottons in 2007, 2008, and 2009 No difference in preferred oviposition site or egg production was detected between transgenic and nontransgenic cottons in both free choice and no choice tests No difference in life table parameters was detected for A suturalis between Bt cottons and nontransgenic cottons. All these results indicated that transgenic crops did not contribute to the nontarget pest outbreaks when being compared with their parental lines The possible reasons for intensified pest status of A suturalis, such as decrease of pesticide application, deficient natural enemies, and area-wide shift of cotton varieties, were discussed
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