Mystery of Bollworm Outburst Unveiled

From: China Chemical Reporter | Date: February 26, 1998 | Copyright information

China is a big cotton growing country in the world. However, the bollworm outburst taking place in many cotton growing areas in the recent year has caused a great damage to farm crops, especially to cotton. Why can bollworms run rampant? After more than 4 years' testing and analysis, Chinese scientists have found that dry, weather, excessive amount of nitrogenous fertilizers and irrational pesticide application are the major factors for the extensive bollworm outburst.

Guo Yuyuan, researcher of the Plant Protection Institute of the Chinese Academy of Agricultural Sciences, has ...

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