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	Bt Cotton in China: Are Secondary Insect Infestations Offsetting the Benefits in Farmer Fields?
	Wang Z. J. ; Lin H. ; Huang J. K. ; Hu R. F. ; Rozelle S. ; Pray C.
	2009
关键词	Bt cotton secondary insect mirid China
英文摘要	The area sown to Bt cotton has expanded rapidly in China since 1997. It has effectively controlled the bollworm. However, in recent years, concern has surfaced about the emergence of secondary insect pests, particular mirids, in Bt cotton fields. This study measures the patterns of insecticide use based on farm-level from 1999 to 2006, the analysis demonstrates a rise in insecticide use to control mirids between 2001 and 2004, secondary insect infestations is largely related to the rise of mirids, but this rising did not continue in more than half of sample villages studied in 2004-2006. Moreover, the increase in insecticide use for the control of secondary insects is far smaller than the reduction in total insecticide use due to Bt cotton adoption. Further econometric analyses show that rise and fall of mirids is largely related to local temperature and rainfall.
出处	Agricultural Sciences in China
卷	8
期	1
页	83-90
收录类别	SCI
语种	英语
ISSN号	1671-2927
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/22823]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Wang Z. J.,Lin H.,Huang J. K.,et al. Bt Cotton in China: Are Secondary Insect Infestations Offsetting the Benefits in Farmer Fields?. 2009.

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