Studies on the Effect of Pesticides on the Reproduction of the Silkworm, Bombyx mori L. : Lepidoptera : Bombycidae : II. Ovicidal Action of Organophosphorus Insecticides Administered during the Larval Stage

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概要

• 論文の詳細を見る

• Exposure of silkworm larvae to sub-lethal doses of organophosphorus insecticides such as parathion and disulfoton, induced specific ovicidal action on their subsequent eggs. The embryos of eggs laid developed to the stage just before or just after hatching and then died. Although embryonic respiration and cholinesterase activity of affected eggs were almost normal, approximately 2 days before anticipated hatching, abnormalities appeared. About 2.7 ng parathion (4.8 ppm/egg weight) or about 3.6 ng disulfoton (6.6 ppm/egg weight) were transferred from the maternal body to the egg, this is equal to the lethal dose for hatched larva. Based on our results we suggest that some of the chemical agent entered the female body during the larval stage, became residual due to the absence of neutralization or excretion, was transferred to the egg during egg formation, and subsequently inhibited the embryonic cholinesterase activity, resulting in death just prior to hatching or death just after hatching.

• 日本応用動物昆虫学会の論文
• 1981-11-25

著者

• Kuribayashi Shigeharu

  Chubu Branch Station Sericultural Experiment Station Matsumoto

関連論文

• Studies on the Effect of Pesticides on the Reproduction of the Silkworm, Bombyx mori L. : Lepidoptera : Bombycidae : II. Ovicidal Action of Organophosphorus Insecticides Administered during the Larval Stage

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