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作者在室内研究了拟环纹豹蛛和草间小黑蛛对弹尾虫的功能反应和选择作用。结果表明,两种蜘蛛对弹尾虫的功能反应均为Ⅱ型反应,并存在极显著的差异,拟环纹豹蛛对弹尾虫的功能反应明显强于草间小黑蛛,其对弹尾虫的控制作用(a/Th=39.758)是草间小黑蛛(13.031)的3倍左右。弹尾虫和白背飞虱共存时,两种蜘蛛的功能反应变为重型反应,并对弹尾虫都具有明显的偏好性,弹尾虫的存在降低了两种蜘蛛对白背飞虱的捕食作用率。因此,不能片面强调弹尾虫等中性昆虫对控制害虫的促进作用,在作物生长的不同时期,它们所起的作用不同。
The authors studied the functional response and selection of the Pterodactyloides venom and Panthera tricuspidata in the laboratory. The results showed that the functional responses of the two species of spider to the species of S. auritus were type Ⅱ and there were significant differences between them. The control of the bug (a / Th = 39.758) is about three times as much as that of the black grasshopper (13.031). Both the spider’s functional response turned into a heavy reaction when both the tail and the Sogatella furcata coexist, and there is a clear preference for the Sarcoptic species. The presence of the Sphingidae reduces the predation by both spiders against Sogatella furcifera Effect rate. Therefore, one can not uncoordinately emphasize the role of neutral insects such as ticks in controlling pests and they play different roles at different stages of crop growth.