Impact of bt cotton in China

Carl Pray, Danmeng Ma, Jikun Huang, Fangbin Qiao

Research output: Contribution to journalArticlepeer-review

232 Scopus citations


A sample of 283 cotton farmers in Northern China was surveyed in December 1999. Farmers that used cotton engineered to produce the Bacillus thuringiensis (Bt) toxin substantially reduced the use of pesticide without reducing the output/ha or quality of cotton. This resulted in substantial economic benefits for small farmers. Consumers did not benefit directly. Farmers obtained the major share of benefits and because of weak intellectual property rights very little went back to government research institutes or foreign firms that developed these varieties. Farmers using Bt cotton reported fewer pesticide poisonings than those using conventional cotton.

Original languageEnglish (US)
Pages (from-to)813-825
Number of pages13
JournalWorld Development
Issue number5
StatePublished - May 2001

All Science Journal Classification (ASJC) codes

  • Geography, Planning and Development
  • Development
  • Sociology and Political Science
  • Economics and Econometrics


  • Agriculture
  • Asia
  • Biotechnology
  • China
  • Cotton
  • Economics


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