有機リン系防蟻剤の防蟻効力について(第1報) : 土壌中での有機リン剤の分解

概要

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記事区分：原著To examine the stability of organophosphates in a practical application, the rates of degradation and the residual termiticidal efficacy of five kinds of organophosphates in a fumic soil and a red soil were measured. The degradation of the compounds proceeded faster in the fumic soil than in the red soil. More species of microfungi and a larger number of individual microfungi lived in the fumic soil. The degradation of the compounds was inhibited in fumic soil that had been autoclaved or in such soil to which fungicidal reagents had been added. Thus, the degradation of the organophosphates was enhanced by the microorganisms living in the soil. There were various differences in stability among the compounds. Chlorpyrifos was the slowest to degrade of the compounds tested, and highest in residual efficacy in bioassays. Pyridaphenthion was the second slowest to degrade and phoxim had a fairly high rate of residual efficacy.
近畿大学の論文
1991-03-15