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本文研究三突花蛛对小菜蛾幼虫的捕食功能反应及干扰因素对捕食作用的影响。结果表明，三突花蛛对小菜蛾幼虫的捕食效应属HollingⅡ型反应，捕食作用率随捕食者—猎物比率上升而下降，雌蛛的捕食效应强于雄蛛。
In this paper, the predation response of predatory spider mites to Plutella xylostella and the effects of disturbance factors on their predation were studied. The results showed that the predation effect of the spider mite on Plutella xylostella was Holling Ⅱ type reaction, the predation rate decreased with the increase of the predator-prey ratio, and the female predation effect was stronger than that of the male spider.