オルソヂクロロベンゼン乳劑による便池内ハエ幼虫の駆除について : 薬劑によるハエ幼虫駆除に関する研究第 2 報(オルソ劑に関する研究報告集)

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The experiments on the effect of o-dichlorobenzene emulsion against the larvae of Sarcophaga spp. were carried out in the laboratory and in the pots of lavatories comparing to that of lindane emulsion. As presented by Toyama and Suzuki (Botyu-Kagaku, 19, 115-121, 1954), lindane was effective in higher dilutions than o-dichlorobenzene by such method in the laboratory, but the latter chemical had a comparatively high insecticidal efficacy. In the present experiments, the test insects (3rd instar larvae of Sarcophaga peregrina R.-D.) dipped in the emulsion of the chemical for 24 hours were kept in the other petri-dishes till some of them pupated and emerged, and the number of pupae and emerged adult flies were counted. In the experiments of lindane emulsions, the retarted lethal effect was sometimes seen in the advanced stages, some larvae being incapable of forming pupae, some pupae died in situ, or newly emerged adults were seen to survive only a few days. In o-dichlorobenzene or DDT, such retarded effects were not observed. In the experiments in the petri-dishes, the action of o-dichlorobenzene was more rapid than that of lindane so far as the sign of intoxication of the larvae appeared. However, the lethal action of the latter chemical was more rapid than the former. Through the field experiments, the standard amounts of the insecticides required for the practical control of fly larvae in the lavatory pots were concluded as follows : o-dichlorobenzene emulsion, 2 liters of 30-100 times dilution per square meter; lindane emulsion, 2 liters of 100-300 times dilution per square meter. It was also observed that the more the contents of the pots were solid, the larger was the amount of the insecticides required.
日本衛生動物学会の論文
1955-09-30

オルソヂクロロベンゼン乳劑による便池内ハエ幼虫の駆除について : 薬劑によるハエ幼虫駆除に関する研究第 2 報(オルソ劑に関する研究報告集)

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