カイコ殺虫剤抵抗性に関する研究 : I DDT および Sumithion に対する感受性について

概要

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Some notes on the torelance of the silkworm larvae to DDT and Sumithion applied topically have been described in this study. As in the 3rd, 4th and 5th-instar larvae just after ecdysis, the torelance to the toxicants generally increased with age, but the degree of the torelance shown by LD_50 per body -weight did not vary from age to age. The torelance of the 5th-instar larvae just after ecdysis markedly increased with feeding mulberry leaves for several hours. The sensitivity to the toxicants was usually the same in both sexes. Larvae were more susceptible to DDT at low (15℃) rather than high (25℃) temperatures, while temperature effect on the susceptibility to Sumithion was larger at high temperature than at low temperature, i. e., the susceptibility to Sumithion demonstrated a positive temperature coefficient.
日本応用動物昆虫学会の論文
1966-09-25