Studies on Carbamate Insecticides

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  • カーバメート化合物の農薬への応用
  • カーバメート カゴウブツ ノ ノウヤク エ ノ オウヨウ 1 チカン フェニル N-メチルカーバメート オヨビ N , N-ジメチルカーバメート ノ スウシュ コンチュウ ニ タイスル サッチュウリョク
  • I. Insecticidal Activities of Substituted Phenyl N-methyl-and N, N-dimethylcarbamates to Several Species of Insects
  • 第1報 置換フェニルN-メチルカーバメートおよびN, N-ジメチルカーバメートの数種昆虫に対する殺虫力

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Insecticidal activities of 81 substituted-phenyl N-methylcarbamates and 23 substituted-phenyl N, N-dimethylcarbamates were evaluated with 6 species of insects. Most of compounds tested showed low toxicity to the almond moth, Ephestia cautella WALKER, and the rice stem borer, Chilo suppressalis WALKER. LC95 values to the corn leaf aphid, Rhopalosiphum maidis FITCH, were higher than those to the green peach aphid, Myzus persicae SULZER. The relationship between toxicity to the housefly, Musca domestica L. and the chemical structure of compounds was same as those reported by R.L. METCALF et al. A similar relationship was observed in case of the adzuki bean weevil, Callosobruchus chinensis L. Insecticidal activities of cyanosubstituted-phenyl N, N-dimethylcarbamates were higher than those of cyano-substituted phenyl N-methylcarbamates. 2-Nitro-3, 5-dimethylphenyl N-methylcarbamate showed higher insecticidal activities than 4-nitro-3, 5-dimethylphenyl N-methylcarbamate. Substituted 2-allylphenyl N-methyl carbamates and substituted 3, 5-dimethylphenyl N-methylcarbamates had high insecticidal activities against the corn leaf aphid.

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