Olfactory responses of two specialist insect predators of spider mites toward plant volatiles from lima bean leaves induced by jasmonic acid and/or methyl salicylate.

DOI Web Site 被引用文献10件 参考文献31件
  • Shimoda Takeshi
    Insect Biocontrol Laboratory, Department of Entomology and Nematology, National Agricultural Research Center, Tsukuba
  • Ozawa Rika
    Bio-oriented Technology Research Advancement Institution, Tokyo Laboratory of Biofunction Chemistry, Graduate School of Agriculture, Kyoto University
  • Arimura Gen-ichiro
    Bio-oriented Technology Research Advancement Institution, Tokyo Laboratory of Biofunction Chemistry, Graduate School of Agriculture, Kyoto University
  • Takabayashi Junji
    Center for Ecological Research, Kyoto University CREST of JST (Japan Science and Technology Corporation)
  • Nishioka Takaaki
    Laboratory of Biofunction Chemistry, Graduate School of Agriculture, Kyoto University

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The responses of two insect predators of spider mites, Scolothrips takahashii (Thysanoptera: Thripidae) and Oligota kashmirica benefica (Coleoptera: Staphylinidae), to volatile compounds from leaves treated with aqueous jasmonic acid (JA) and/or gaseous methyl salicylate (MeSA) in an olfactometer were examined. Adult females of O. kashmirica benefica exhibited a significant preference for JA+MeSA-treated leaves when compared with uninfested leaves. In contrast, adult females of S. takahashii significantly preferred MeSA- and JA+MeSA-treated leaves to uninfested leaves. Neither predator showed any preference for JA-treated leaves when compared with uninfested leaves. The results argue in favor of manipulating the behavior of natural enemies of herbivores as a method of biological control against herbivorous pests in agroecosystems. This is the first report to suggest that MeSA can be a useful tool for enhancing the effectiveness of carnivorous natural enemies of spider mites.

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