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为了解温度对甜菜夜蛾种群的影响，测定了甜菜夜蛾在 １５５，１８，２０，２３，２５，２７，３０，３３，３５，３８，４０ ℃共１１ 个恒温下的存活率、繁殖力和种群增长参数．结果表明，甜菜夜蛾第１，５ 龄幼虫和蛹对极端温度的反应较其他虫态更为敏感．世代存活率和产卵量皆与温度呈抛物线关系．雌虫的繁殖动态可用简化的 Ｇａｍ ｍ ａ 分布模型来拟合．种群增长指数在 ２７ ℃下为最大，而内禀增长力（ｒｍ ） 和周限增长率（λ） 在３３ ℃下最大．
To understand the effect of temperature on the beet armyworm population, the survival rate of beet armyworm at 115,18,20,23,25,27,30,33,35,38 and 40 ℃ were determined. Fecundity and population growth parameters. The results showed that the 5th and 5th instar larvae and pupae of beet armyworm were more sensitive to extremes of temperature than other beetles. Generational survival and egg production are parabolic with temperature. Female reproductive dynamics can be fitted with a simplified Gam m distribution model. The population growth index was the largest at 27 ℃, while the intrinsic growth rate (rm) and the growth rate of the limit (λ) were the largest at 33 ℃.