Pesticide susceptibility of Kanzawa spider mites, <i>Tetranychus kanzawai</i> Kishida and two-spotted spider mites, <i>Tetranychus urticae</i> Koch (Acari: Tetranychidae) in Kyoto Prefecture

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  • 京都府におけるカンザワハダニおよびナミハダニ黄緑型の雌成虫に対する薬剤殺虫効果
  • キョウトフ ニ オケル カンザワハダニ オヨビ ナミハダニ キミドリガタ ノ メス セイチュウ ニ タイスル ヤクザイ サッチュウ コウカ

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Abstract

<p>We evaluated the susceptibility of Kanzawa spider mites, Tetranychus kanzawai Kishida, and two-spotted spider mites, T. urticae Koch, populations from eggplants and adzuki beans to pesticides sprayed on kidney bean leaves. Results showed that the susceptibility of adult females varied among species. Of the 20 pesticides applied with a spray tower (20 pesticides against T. kanzawai and 17 pesticides against T. urticae), acynonapyr and spinetoram were the most toxic to adult females of both Tetranychus species. Chlorfenapyr, cyflumetofen, tebufenpyrad, bifenazate, milbemectin, acequinocyl, avermectin, emamectin benzoate, and cyenopyrafen caused high mortality in T. kanzawai, whereas decanoyloctanoylglycerol, spinetoram, and fluxametamide caused high mortality in T. urticae.</p>

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