TRIFLUOROMETHYLTHIO-PHENYL(DI)-THIOPHOSPHORIC ACID ESTERS,PROCESSES FOR THEIR PREPARATION AND THEIR USE AS INSECTICIDES OR ACARICIDES

摘要

O-Alkyl-S-alkyl-O-(4-trifluoromethylthiophenyl)-(thiono)-thiol-phosphoric acid esters of the formula (I) in which R and R1 each independently is alkyl, R2 is hydrogen or alkyl, and X is oxygen or sulphur, WHICH POSSESS INSECTICIDAL, ACARICIDAL AND NEMATICIDAL PROPERTIES.