通过对大草蛉与烟蚜组成的捕食者-猎物实验种群的研究.得出以下主要结论:1)大草蛉各龄幼虫和成虫对烟蚜密度的功能反应均属于Holling Ⅱ型:2)大草蛉的捕食活动存在明显的昼夜节律,表现为功能反应参数的变化;3)大草蛉个体的饥饱程度影响到其捕食活动的强弱,较高的饥饿水平有增加搜索效率的趋向;4)大草蛉个体间在捕食活动中存在相互干扰效应.该效应随大草蛉幼虫年龄增长而增强.成虫间的干扰效应强于幼虫间的干扰效应;5)实验种群生境空间大小的不同影响到大草蛉的瞬间搜索率和干扰系数的取值。文中运用上述结论.对大草蛉对烟蚜种群的控制能力进行了评价。 The main conclusions are drawn as follows: 1) The functional responses of the larvae and adult adults to the density of the aphids are all Holling type Ⅱ: 2) Predators have significant circadian rhythms, showing the changes of functional response parameters; 3) the degree of hunger of Saturnia scurfanensis affects the predatory activity, the higher the hunger level tends to increase search efficiency; 4) There was mutual interference in the predation activities among individuals, which increased with the age of larvae of Larix chinensis. Interference between adults was stronger than that of larvae. (5) Instantaneous search rate and the value of the interference coefficient. In this paper, the above conclusions were used to evaluate the control ability of A. grandis population on the population of Myzus persicae.