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Article

Resistance allele frequency to bt cotton in field populations of helicoverpa armigera (Lepidoptera: Noctuidae) in China.

Journal of economic entomology - 1 Jun 2008

Liu Fengyi, Xu Zhiping, Chang Juhua, Chen Jin, Meng Fengxia, Zhu Yu Cheng, Shen Jinliang

Abstract excerpt

Resistance evolution in target insects to Bacillus thurningiensis (Bt) cotton, Gossypium hirsutum L., is a main threat to Bt cotton technology. An increasing trend of population density of Helicoverpa armigera (Hübner) (Lepidoptera: Noctuidae) has been observed since 2001 in Qiuxian County (Hebei, China), where Bt cotton has been planted dominantly since 1998. This region was selected in 2006 and 2007 for...

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PMID: 18613597
DOI: 10.1603/0022-0493(2008)101[933:raftbc]2.0.co;2

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PubMed metadata and Literature Corpus relationships. Corpus snapshot updated 7 Sept 2026. Manifest publication-graph-cohort-2026-09-08.1.

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