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Preference of Tetranychus urticae (Acari: Tetranychidae) for Kidney Beans Pre-Infested by Frankliniella occidentalis (Thysanoptera: Thripidae) and Possible Roles of Induced Bean Volatiles

文献类型： 外文期刊

作者： Tian, Tian 1 ; Zhi, Jun-Rui 1 ; Lv, Zhao-Yun 1 ; Wen, Juan 1 ; Cao, Yu 1 ;

作者机构： 1.Guizhou Univ, Guizhou Prov Key Lab Agr Pest Management Mountain, Inst Entomol, Guiyang 550025, Guizhou, Peoples R China

2.Nanjing Agr Univ, Coll Plant Protect, Nanjing 210095, Jiangsu, Peoples R China

3.Jiangsu Acad Agr Sci, Inst Plant Protect, Nanjing 210014, Jiangsu, Peoples R China

关键词： Herbivore; defense response; preference; behavior; Phaseolus vulgaris

期刊名称：JOURNAL OF THE KANSAS ENTOMOLOGICAL SOCIETY （ 影响因子：0.281； 五年影响因子：0.445 ）

ISSN： 0022-8567

年卷期： 2017 年 90 卷 4 期

页码：

收录情况： SCI

摘要： We tested the selectivity of the adult female two-spotted spider mite (TSSM), Tetranychus urticae, for kidney beans subjected to various treatments, which were infested by 2nd instar larvae of western flower thrips (WFT), Frankliniella occidentalis, at different densities (5, 10, or 15 WFT/plant) and time (2, 4, or 6 days). The volatiles released from beans subjected to various treatments were evaluated by gas chromatograph-mass spectrometry. We found that TSSM was more likely to select bean plants infested for 2 days when the density was 5 WFT/plant. TSSM preferred bean plants infested for 4 days when the density was 10 or 15 WFT/plant. Irrespective of the WFT density, TSSM had the lowest preference for healthy beans and beans infested for 6 days. When the WFT infestation duration was the same, the percentage of TSSM was greatest on beans infested with 10 WFT, and there were no significant differences among the other three bean plant treatments. The results indicated that TSSM tended to prefer bean plants infested with WFT at a medium density. The volatiles release from bean plants under different treatments varied in terms of some compounds, where some were only found in healthy beans and new compounds were induced in WFT-infested plants. We propose that (E)-2-hexenal is attractive to TSSM, whereas (Z)-3-hexenyl acetate and (Z)-3-hexenyl propionate could be repellents. The results also indicated that WFT damage could induce changes of volatiles in compounds and contents which were associated with WFT density and damage time. This study provides a valuable insight for the effect of pre-infested insect pest species on the preference and behavior of subsequent species, and for further studying herbivore interactions.

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