A thiophosphoric acid ester as a soil pest controlling agent.

摘要

The present invention discloses a thiophosphoric acid ester useful to control pests living in soil and a process for producing said ester. Said ester has excellent activity in controlling pests living in soil such as southern corn rootworm, cupreous chafer, etc. The present invention discloses also a method for stabilizing said ester by adding at least one compound selected from the group consisting of polyols, polyalkylene glycols and their esters and ethers. According to the present invention, there is provided a highly active and stable soil pest controlling agent and agricultural composition.