China's Boll worm Outbreak: Causes And Strategies

摘要

Since 1992, there have been continuous outbreaks of cotton bollworm in China. Huge losses in cotton yield have been the result, ranging from 10% to 30% in some areas and from 50% to 80% in other areas. As a matter of fact, the bollworm has become themost important factor limiting the nation's cotton production.