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Frequency of Bt resistance alleles in Helicoverpa armigera in 2007–2009 in the Henan cotton growing region of China

✍ Scribed by Guoping Li; Yulin Gao; Hongqiang Feng; Feng Qiu

Book ID
113557276
Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
252 KB
Volume
30
Category
Article
ISSN
0261-2194

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✍ Dr Kongming Wu; Wei Mu; Gemei Liang; Yuyuan Guo 📂 Article 📅 2005 🏛 John Wiley and Sons 🌐 English ⚖ 122 KB

## Abstract A continuous programme for monitoring resistance of __Helicoverpa armigera__ (Hübner) to commonly used insecticides was undertaken for assessing the impact of Bt cotton planting on the evolution of the pest resistance from 1994 to 2002 in China. The bioassay results showed that the resi