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红铃虫危害棉株蕾花引起蕾、花、铃脱落,对结铃和产量有无影响进行系统的观察。经三年试验获得一致的结果,红铃虫危害棉株蕾花所引起的脱落,对棉株结铃率影响无显著差异;对棉株结铃数和产量影响也无显著差异。因此,第一代红铃虫田间可省去施药、摘虫花和花心捉虫等防治措施,减少繁琐的劳动,有利于保护棉虫天敌,维持生态平衡,控制棉蚜和棉铃虫等害虫的发生危害。
Red bollworm damage buds of cotton plants caused by buds, flowers, bell off, the bell and yield whether the impact of systematic observation. After three years of experiment, the results were consistent, pink bollworm endangering cotton buds caused by the fall off, boll bolting rate of cotton no significant difference; the number of bolls and yield of cotton no significant difference. Therefore, the first generation of red bollworm can save the field of pesticide application, pest control and flower abacus and other control measures to reduce cumbersome labor, help protect the natural enemies of insects, maintain ecological balance, control cotton aphids and bollworm pests The occurrence of harm.