Studies on use of the pesticide resistant predatory mite Amblyseius womersleyi SCHICHA (Acari : Phytoseiidae) for integrated pest management on tea plants
In tea cultivation as many species of pests occurr simultaneously, so integrated pest management (IPM) that reduces pesticide application by harmoniously using pesticides and natural enemies, is important. However, the outbreak (resurgence) of the Kanzawa spider mite, Tetranychus kanzawai KISHIDA, following use of synthetic pyrethroid insecticides (SP) became a serious proulem in pest management on tea plants. To solve this problem, the SP-resistant predatory mite, Amblyseius womersleyi Schicha was found and its effectiveness was evaluated in the tea pests management program. The variation in susceptibility to SP was successfully detected and some promising SP resistant strains were selected from tea fields in the eastern part of Shizuoka prefecture. The ecological traits of the selected SP-resistant strain were equal to those of the other native populations in Japan. It was confirmed that this strain could successfully control the T. kanzawai population under SP application and two sucking pests (Scirtothrips dorsalis HOOD, Empoasca onukii MATSUDA) were simultaneously controlled by SP in the field trial.
雑誌名
野菜茶業研究所研究報告
雑誌名(英)
Bulletin of the National Institute of Vegetable and Tea Science
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チャ害虫総合管理のための薬剤抵抗性ケナガカブリダニ Amblyseius womersleyi の利用に関する研究
nivts_report_No2p93-138p.pdf
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