Summary
A technique for the breeding of standardCulex fatigans for toxicological studies as well as a method for the evaluation of toxicity are described. Experiments have shown that successive generations of the test insects show progressive resistance to a contact insecticide. The progressive resistance to DDT over a ten-month period is recorded.
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Ordnance Laboratories Technical Reports. Report No. Bio.-45–27, July 1945. “The comparative efficiency and residual effect of DDT applied in various ways on to glass surface against mosquitoes.” Part I. Report No. Bio.-45–35, October 1945. “Biological assay of insecticidal deposits usingCulex fatigans.” Report No. Bio.-45–42, December 1945. “Comparative efficiency of DDT and 666 on glass surfaces.” Report No. Bio.-45–44, February 1946. “Reactivation of DDT treated surfaces by an oil spray. Part II.” Report No. Bio.-46–48, April 1946. “The comparative toxicity of Kerosene grades II and III and efficiency of DDT when dissolved in these grades of Kerosene.”
Potter, C. “Apparatus and technique for investigating action of contact insecticides,”Ann. Appl. Biol., 1941,28, 142.
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Communicated by Dr. T. S. Subramanian, F.A.Sc.
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Newman, J.F., Aziz, M.A. & Koshi, T. Studies in contact toxicity. Proc. Indian Acad. Sci. 30, 61–68 (1949). https://doi.org/10.1007/BF03051579
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DOI: https://doi.org/10.1007/BF03051579