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当前位置: 首页 > 文章 > 斯氏钝绥螨对西花蓟马和豆大蓟马若虫的捕食功能反应 应用昆虫学报 2019 (6) 1317-1323
Position: Home > Articles > The functional predatory response of Amblyseius swirskii to Frankliniella occidentalis and Megalurothrips usitatus nymphs Chinese Journal of Applied Entomology 2019 (6) 1317-1323

斯氏钝绥螨对西花蓟马和豆大蓟马若虫的捕食功能反应

作  者：
禹云超;郅军锐;曾广;岳文波;叶茂
单  位：
贵州大学昆虫研究所贵州省山地农业病虫害重点实验室
关键词：
斯氏钝绥螨;西花蓟马;豆大蓟马;功能反应;捕食喜好性;干扰作用
摘  要：
【目的】为明确斯氏钝绥螨Amblyseius swirskii对西花蓟马Frankliniella occidentalis和豆大蓟马Megalurothrips usitatus不同龄期若虫的捕食量及控制潜能。【方法】在25℃和75%相对湿度下,研究了斯氏钝绥螨雌成螨对两种蓟马1龄和2龄若虫的捕食喜好性、功能反应以及捕食螨自身的干扰反应。【结果】斯氏钝绥螨无论对西花蓟马还是豆大蓟马,在各自1龄和2龄若虫共存状况下,对1龄若虫的喜好性均显著高于2龄。捕食螨对两种蓟马1龄若虫的捕食量和喜好性无显著差异,但对西花蓟马2龄若虫的捕食量和喜好性显著大于豆大蓟马2龄若虫。斯氏钝绥螨雌成螨对西花蓟马和豆大蓟马的1龄若虫和2龄若虫的捕食功能反应均符合HollingⅡ型方程。捕食螨对西花蓟马和豆大蓟马1龄若虫的日均捕食量均随其自身密度的增加而逐渐降低。【结论】斯氏钝绥螨的捕食量与蓟马的种类和龄期有关,也与捕食螨的密度有关。
译  名：
The functional predatory response of Amblyseius swirskii to Frankliniella occidentalis and Megalurothrips usitatus nymphs
作  者：
YU Yun-Chao;ZHI Jun-Rui;ZENG Guang;YUE Wen-Bo;YE Mao;Institute of Entomology, Guizhou University, The Provincial Key Laboratory for Agricultural Pest Management of the Mountainous Region;
关键词：
Amblyseius swirskii;;Frankliniella occidentalis;;Megalurothrips usitatus;;functional response;;predation preference;;interference response
摘  要：
[Objectives] To investigate the potential of Amblyseius swirskii to act as a biological control for nymphs of the thrips Frankliniella occidentalis and Megalurothrips usitatus. [Methods] The prey preferences and functional and interference responses of A. swirskii to nymphs of F. occidentalis and M. usitatus were measured at 25℃ and 75% RH under laboratory conditions. [Results] A. swirskii preferred 1 st instar nymphs of both F. occidentalis or M. usitatus to 2 nd instar nymphs of these species, and there was no difference in its predatory capacity, or preference, for 1 st instar nymphs of either species. However, A. swirskii preferred 2 nd instar nymphs of F. occidentalis to those of M. usitatus. The functional response was a good fit to the Holling Ⅱ equation. The predation rate of A. swirskii on 1 st instar nymphs decreased with predator density.[Conclusion] The predatory capacity of A. swirskii was affected by the species and developmental stage of its prey and predator density.

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