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胜金乡第一代棉铃虫发生量极少。个别大队由于天敌的伤害，玻坏了生态平衡，棉株旺长，落卵量增加。关键时防治不彻底，成为二代棉铃虫发生的重要原因。
Sheng Jinxiang the first generation of cotton bollworm occurred rarely. Individual brigade as a result of natural enemy damage, broken glass ecological balance, cotton plants flourishing, the amount of eggs increased. The key prevention and treatment is not complete, becoming the second generation of cotton bollworm an important reason.