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研究了第三代棉铃虫的百株累计卵量与夏玉米和夏大豆产量的关系，分别组建了它们的相关式。分析提出推广的防治指标分别为百株累计卵量６０ 粒和５５ 粒。
The third generation of cotton bollworm one hundred strains of the cumulative amount of eggs and summer maize and summer soybean production relationship, respectively, set up their correlation. Analysis suggested that the promotion of prevention and control indicators were 100 strains of accumulated eggs and 55 grains.