Critical tests regarding current residual-spray control against medical insects in Japan III. : Effect of Sumithion and Dipterex against houseflies as applied in model-huts

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  • Asahina Syoziro
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Yasutomi Kazuo
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Inoue Yoshisato
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Ogata Kazuki
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Takahashi Mitsuo
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Tsutsumi Chisato
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Noguchi Yoshiko
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Mihara Minoru
    Department of Medical Entomology, National Institute of Health, Tokyo
  • Takahashi Masakazu
    Department of Medical Entomology, National Institute of Health, Tokyo

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Other Title
  • 衛生害虫に対する殺虫剤残留噴霧の再検討 : 第 3 報 イエバエに対する Sumithion および Dipterex の効果について
  • 衛生害虫に対する殺虫剤残留噴霧の再検討-3-
  • エイセイ ガイチュウ ニ タイスル サッチュウザイ ザンリュウ フンム ノ サイケントウ 3

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Abstract

Following 1961 and 1962 experiments, a series of spray tests, in order to check the residual effect of Sumithion and Dipterex, were carried out using several summer-huts located in Hachioji-city, west of Tokyo. 1. During May-June period of 1963, residues of 0.5% Sumithion emulsion (0.25 gram of active ingredient per squaer metre) gave 80-99% knock-down for about one month against susceptible Takatsuki flies. Difference in the knoc kdown effect between the shadowy huts and the sunny huts has hardly been recognized 2. Residues of 0.5% Dipterex emulsion (0.25 gram Dipterex per square metre) showed about 70-80% knockdown effect against susceptible (Takatsuki) strain through 35 days in the shadowy huts located among the trees. Against diazinon-resistant flies (RP strain) the residues of Sumithion and Dipterex gave a higher kill than that of diazinon, but a slight cross-resistance with diazinon would not be denied.

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