Abstract: O,S,N-tri-aliphatic hydrocarbon-thionothiolphosphoric acid ester amides of the general formula ##STR1## in which R, R.sup.1 and R.sup.2, which may be the same or different, each is an alkyl, alkenyl or alkynyl radical with up to 6 carbon atoms, optionally substituted with at least one halo, phenyl, cyano, alkoxy, alkylmercapto, phenylmercapto or naphthylmercapto radical, the mercapto radicals being optionally chloro- or cyano-substituted,Which possess nematocidal, insecticidal, acaridical, fungicidal and mammalian-repellent properties.

Abstract: S-(amidocarbonyl)-methyl-O-alkyl monothiophosphoric acid ester amides of the formula ##EQU1## in which R and R' each independently is alkyl of 1 to 6 carbon atoms,R" is alkyl or alkenyl of 1 to 6 carbon atoms optionally carrying at least one chlorine,C.sub.1 -c.sub.6 alkoxy, C.sub.1 -C.sub.6 alkylmercapto or nitrile radical,R"' is hydrogen or acyl, with the proviso that R"' is not hydrogen if R" is unsubstituted alkyl, orR" and R"' conjointly with the nitrogen atom to which they are attached form a heterocyclic ring, which possess insecticidal and acaricidal properties.

Abstract: Pyrazolo-(thiono)-phosphoric(phosphonic) acid esters of the general formula ##SPC1##In whichR is alkyl with 1-6 carbon atoms,R.sub.1 is alkyl or alkoxy with 1-6 carbon atoms,R.sub.2 is alkyl with 2-4 carbon atoms, andY is oxygen or sulfur,Which possess insecticidal, acaricidal, rodenticidal, fungicidal and nematocidal properties.

Abstract: N-[N',N'-disubstituted-aminomethylidene]-(thiono)thiolphosphoric acid ester imides of the formula ##EQU1## in which R is alkyl with 1 to 6 carbon atoms,R' is alkyl, alkenyl or alkynyl with up to 6 carbon atoms, lower alkylmercapto-lower alkyl or N-alkyl-carbamoylmethyl,R" and R'" each independently is alkyl or alkenyl with up to 6 carbon atoms, or conjointly with the nitrogen atom form a heterocyclic ring, and X is oxygen or sulfur,Which possess insecticidal, acaricidal and nematocidal properties.

Abstract: N-[O-Alkyl-S-aliphatic-(thiono)-thiolphosphoryl]iminoformic acid alkyl esters of the general formula ##EQU1## in which R is alkyl with 1 to 6 carbon atoms,R' is alkenyl or alkynyl with up to 6 carbon atoms, lower alkylmercapto-lower alkyl or N-alkylcarbamoylmethyl,X is oxygen or sulfur, andAlk is an alkyl radical with 1 to 6 carbon atoms,Which possess insecticidal and acaricidal properties.