捕食性螨，斯氏钝绥螨在第一龄期西部花蓟马，弗兰克氏烟粉虱和二斑叶螨若螨之间的取食偏好。
Prey preference of the predatory mite, Amblyseius swirskii between first instar western flower thrips Frankliniella occidentalis and nymphs of the twospotted spider mite Tetranychus urticae.
机构信息
Key Laboratory for biological Control of Ministry of Agiculture, Institute of Plant Proctection, Chinese Academy of Agricultural Sciences, 2 West Yuanmingyuan Road, Beijing 100193, PR Chinaction, Chinese Academy of China.
出版信息
J Insect Sci. 2010;10:149. doi: 10.1673/031.010.14109.
The prey preference of polyphagous predators plays an important role in suppressing different species of pest insects. In this study the prey preference of the predatory mite, Amblyseius swirskii (Athias-Henriot) (Acari: Phytoseiidae) was examined between nymphs of the twospotted spider mite, Tetranychus urticae Koch (Acari: Tetranychidae) and first instar larvae of the western flower thrips, Frankliniella occidentalis (Pergande) (Thysanoptera: Thripidae), as well as between active and chrysalis spider mite protonymphs and active and chrysalis spider mite deutonymphs. The study was done in the laboratory on bean leaf discs at 25 ± 1° C and 70 ± 5% RH. Amblyseius swirskii had a clear preference for thrips compared to both spider mite protonymphs and deutonymphs. About twice as many thrips as spider mites were consumed. Amblyseius swirskii did not show a preference between active and chrysalis stages of spider mites.
多食性捕食者的猎物偏好在抑制不同种类的害虫方面起着重要作用。本研究调查了捕食性螨虫，智利小植绥螨（Athias-Henriot）（蜱螨目：植绥螨科）对二斑叶螨若螨（Tetranychus urticae Koch）（蜱螨目：叶螨科）和西部花蓟马初孵幼虫（Frankliniella occidentalis（Pergande）（缨翅目：蓟马科）），以及活动期和滞育期叶螨若虫和活动期和滞育期叶螨幼螨之间的猎物偏好。在 25±1°C 和 70±5%RH 的条件下，在豆类叶片圆盘上于实验室中进行了这项研究。与叶螨若虫和幼螨相比，智利小植绥螨对蓟马有明显的偏好。被消耗的蓟马数量约为叶螨的两倍。智利小植绥螨在叶螨活动期和滞育期之间没有表现出偏好。
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