摘要： 为预测截形叶螨种群数量动态和制定合理的防治策略,研究了温度对截形叶螨生命活动的影响。结果表明,温度与截形叶螨实验种群生命参数间的关系可分为四种类型:(1)发育历期、平均世代时间与温度呈指数函数关系;(2)50%死亡时间、寿命、产卵期(Qt)、内禀增长率(rm)和周限增长率(λ)均与温度呈直线关系;(3)总产卵量、净增值率(R0)与温度呈抛物线关系;(4)种群加倍需要日数与温度呈曲线关系。

关键词: 温度, 截形叶螨, 试验种群, 生命参数

Abstract: In order to elucidate the population dynamics of Tetranychus truncatus Enara on corn and establish controlmeasures, the effect of temperature on their life activity was studied.The results showed that the relationship between tem -perature and life parameters of experimental population of Tetranychus truncatus fell into four categories:(1)developmen -tal period and mean generation time had exponential functions with temperature;(2)time to 50% mortality, longevity ofadult female, oviposition period, intrinsic rate of increase(rm)and finite rate of increase(K)had linear functionswith tem -perature;(3)total fecundity and net production rate(R0)had parabolic functionswith temperature;(4)days for populationto double had hyperbolic function with temperature.

Key words: Temperature, Tetranychus truncatus, Experimental population, Life parameters

中图分类号: 

• S433.7