Insecticidal and acaricidal O-alkyl-O-[1-(2-cyanoalkyl)-5-halo-1,2,4-triazol(3)yl]-(thiono)(thiol)-p hosphoric(phosphonic) acid esters and ester-amides

Abstract

O-Alkyl-O-[1-(2-cyanoalkyl)-5-halo-1,2,4-triazol(3)yl]-(thiono)(thiol)-phos phoric(phosphonic) acid esters and ester-amides of the formula ##STR1## in which R is alkyl with 1 to 6 carbon atoms, R.sub.1 is phenyl or alkyl, alkoxy, alkylthio, monoalkylamino or dialkylamino with 1 to 6 carbon atoms per alkyl or alkoxy, R.sub.2 is hydrogen or alkyl with 1 to 4 carbon atoms, Hal is halogen, and X is oxygen or sulfur, which possess insecticidal and acaricidal properties.

Dependencies are inferred from the claim text.