Bt Cotton in China:Are Secondary Insect Infestations Offsetting the Benefits in Farmer Fields?

被引：14

作者：

Scott Rozelle ^{[1
]}

Carl Pray ^{[2
]}

机构：

[1] Shorenstein Asia-Pacific Research Center,Freeman Spogli Institute for International Studies,Stanford University

[2] Department of Agriculture,Food and Resource Economics,Rutgers University

来源：

AgriculturalSciencesinChina | 2009年 / 8卷 / 01期

关键词：

Bt cotton; secondary insect; mirid; China;

D O I：

暂无

中图分类号：

S562 [棉];

学科分类号：

0901 ;

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.

引用

页码：83 / 90

页数：8

共 3 条

[1]

THE EVOLUTION OF COTTON PEST MANAGEMENT PRACTICES IN CHINA[J] . K.M. Wu,Y.Y. Guo.Annual Review of Entomology . 2005

[2]

Five years of Bt cotton in China – the benefits continue[J] . Carl E.Pray,JikunHuang,RuifaHu,ScottRozelle.The Plant Journal . 2002 (4)

[3]

Seasonal abundance of the mirids, Lygus lucorum and Adelphocoris spp . （Hemiptera: Miridae） on Bt cotton in northern China[J] . K Wu,W Li,H Feng,Y Guo.Crop Protection . 2002 (10)

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