Toxicities of Insecticides to Brassica Leaf Beetle, <i>Phaedon brassicae</i> Baly

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  • ダイコンハムシ成虫に対する各種殺虫剤の殺虫効果
  • ダイコンハムシ セイチュウ ニ タイスル カクシュ サッチュウザイ ノ サッチュウ コウカ

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Abstract

<p>Eighteen insecticides were used against brassica leaf beetle adults with Japanese white radish leaves. At three days after treatment, 16 insecticides were found to have high toxicity at commercial concentrations. However, only five insecticides were found to have high toxicity at 1/4 of the commercial concentration: fipronil, permethrin, thiocyclam, metaflumizone, and fluxametamide. These results suggest that these five insecticides are a highly effective chemical control for brassica leaf beetles at high densities.</p>

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