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Acaricide-Mediated Competition Between the Sibling Species Tetranychus cinnabarinus and Tetranychus urticae

文献类型： 外文期刊

作者： Lu, Wencai 2 ; Hu, Yuan 1 ; Wei, Peng 1 ; Xu, Qiang 4 ; Bowman, Christian 5 ; Li, Ming 5 ; He, Lin 1 ;

作者机构： 1.Southwest Univ, Acad Agr Sci, Chongqing 400716, Peoples R China

2.Southwest Univ, Coll Plant Protect, Chongqing 400716, Peoples R China

3.Chongqing Acad Agr Sci, Inst Agr Resources & Environm, Chongqing 401329, Peoples R China

4.Abilene Christian Univ, Coll Arts & Sci, Dept Biol, Abilene, TX 79699 USA

5.Univ Calif Riverside, Dept Entomol, Riverside, CA 92521 USA

关键词： Tetranychus urticae; Tetranychus cinnabarinus; acaricide; interspecific competition; resistance selection

期刊名称：JOURNAL OF ECONOMIC ENTOMOLOGY （ 影响因子：2.2； 五年影响因子：2.2 ）

ISSN： 0022-0493

年卷期： 2018 年 111 卷 3 期

页码：

收录情况： SCI

摘要： The carmine spider mite (Tetranychus cinnabarinus [Acarifonnes: Tetranychidae]) and the two-spotted spider mite (Tetranychus urticae [Acarifonnes: Tetranychidae]) are two notorious pests of agricultural crops. Control of these pests has been dependent upon using different kinds of acaricides. The purpose of this study was to determine the differential responses of these two pest species collected from crops in the same field to acaricide treatments. Field trials have shown that without spraying acaricides, T. cinnabarinus will displace T. urticae. However, the application of abamectin has the potential to change the composition of spider mite complexes and facilitate the interspecific competition of T. urticae against T. cinnabarinus when both are fed on cowpeas and eggplants. Moreover, T. urticae is more prone to develop resistance than T. cinnabarinus when selected in the laboratory using cyflumetofen or fenpropathrin. After 20 generations of acaricide selection, the activities of detoxifying enzymes were considerably higher in T. urticae with more detoxifying enzymes upregulated after selection in this species. The results of this study demonstrate that differential responses to acaricide treatments have made it possible for T. urticae to overcome the competitive advantage present in T. cinnabarinus during the absence of acaricide application.

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