Abstract: 2-(alkyl, alkenyl and alkylmercapto)-5-[N-(alkanoyl, chloroalkanoyl, alkoxycarbonyl, phenoxy carbonyl, N'-[alkyl and alkenyl]-aminocarbonyl and N'-alkyl-N'-[alkyl and alkenyl]-aminocarbonyl)-amino]-1,3,4-thiadiazoles, i.e. 2-(alkyl, alkenyl and alkylmercapto)-5-[N-(alkanoylamino, chloroalkanoylamino, alkoxycarbonylamino, phenoxycarbonylamino, N'-[alkyl and alkenyl]-ureido and N'-alkyl-N'-[alkyl and alkenyl]-ureido)]-1,3,4-thiadiazoles, which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: 1,3,4-Thiadiazol-5-yl-ureas, i.e. N-[2-(alkyl, alkylmercapto, alkenylmercapto alkynylmercapto, chloro-substituted benzylmercapto, carboxy-alkylmercapto, aminocarbonyl-alkylmercapto, chlorophenyl-aminocarbonyl-alkylmercapto, alkylsulfonyl, benzylsulfonyl and alkoxy)-1,3,4-thiadiazol-5-yl]-N-alkyl-[N'-mono- and N',N'-di-alkyl]-ureas, which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: 1,3,4-Thiadiazol-5-yl-ureas, i.e. N-[2-(alkyl, alkylmercapto, alkenylmercapto, alkynylmercapto, chloro-substituted benzylmercapto, carboxy-alkylmercapto, aminocarbonyl-alkylmercapto, chlorophenyl-aminocarbonyl-alkylmercapto, alkylsulfonyl, benzylsulfonyl and alkoxy)-1,3,4-thiadiazol-5-yl]-N-alkyl-[N'-mono- and N',N'-di- alkyl]-ureas, which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: 3-[Hydrogen-, (unsubstituted and halo, amino, alkyl-amino, nitro, alkyl, alkoxy, alkylmercapto, aryloxy and/or haloarylmercapto, -substituted) aliphatic-, cycloaliphatic-, araliphatic-, aryl-, or N-heterocyclic- or O-alkanoyl-, -substituted oxy, mercapto or amino]- 4-[amino; mono and di (unsubstituted and cyano, hydroxy and/or halo, -substituted) alkyl- and/or alkanoyl-, -amino; N- (unsubstituted and cyclo- alkyl, aryl, haloaryl, alkaryl, alkoxy aryl, nitroaryl, halo-nitro-aryl, aryl-alkenyl, heterocyclic and/or nitro-heterocyclic- -substituted) alkylidene-amino or cycloalkylidene-amino; or N-heterocyclic]-6-[(unsubstituted and halo, nitro, carbo lower alkoxy, alkyl, alkoxy, aryloxy, alkylmercapto, arylmercapto and/or aralkylmercapto, -substituted) aliphatic, cycloaliphatic, araliphatic, aryl, heterocyclic or heterocyclicalkyl]-1,2,4-triazine-5-ones, which possess herbicidal properties, and which may be produced by conventional methods; herbicidal compositions containing such compounds; and methods of using s

Abstract: Selective herbicidal compositions comprising as active ingredients:A. imidazolidin-2-one-1-carboxylic acid isobutylamide of the formula ##STR1## and B. 1-METHYL-3-(2-BENZOTHIAZOLYL)-UREA OF THE FORMULA ##STR2## or 3-cyclohexyl-5,6-trimethylene-uracil of the formula ##STR3## are particularly useful in selective destruction of weeds in beet cultivation.

Abstract: N-(trifluoromethylmercapto-phenyl)-N'-alkyl and -N',N'-dialkyl ureas which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: 3-[HYDROGEN-, (UNSUBSTITUTED AND HALO, AMINO, ALKYLAMINO, NITRO, ALKYL, ALKOXY, ALKYLMERCAPTO, ARYLOXY AND/OR HALOARYLMERCAPTO, -SUBSTITUTED) ALIPHATIC-, CYCLOALIPHATIC-, ARALIPHATIC-, ARYL-, OR N-heterocyclic- or 0-alkanoyl-, -substituted oxy, mercapto or amino]- 4-[amino; mono and di (unsubstituted and cyano, hydroxy and/or halo, -substituted) alkyl- and/or alkanoyl-, -amino; N- (unsubstituted and cyclo-alkyl, aryl, haloaryl, alkaryl, alkoxy aryl, nitroaryl, halo-nitro-aryl, aryl-alkenyl, heterocyclic and/or nitro-heterocyclic- -substituted) alkylidene-amino or cycloalkylidene-amino; or N-heterocyclic]-6-[(unsubstituted and halo, nitro, carbo lower alkoxy, alkyl, alkoxy, aryloxy, alkylmercapto, arylmercapto and/or aralkylmercapto, -substituted) aliphatic, cycloaliphatic, araliphatic, aryl, heterocyclic or hetero-cyclicalkyl]-1,2,4-triazine-5-ones, which possess herbicidal properties, and which may be produced by conventional methods; herbicidal compositions containing such compounds; and methods of using su

Abstract: 3-[HYDROGEN-, (UNSUBSTITUTED AND HALO, AMINO, NITRO, ALKYL, ALKANOYL, ALKOXY, ALKYLMERCAPTO, ARYLOXY AND/OR ARYL-MERCAPTO-SUBSTITUTED) ALIPHATIC-, CYCLOALIPHATIC-, ARALIPHATIC-, ARYL-, OR HETEROCYCLIC- -SUBSTITUTED OXY, MERCAPTO OR AMINO]4-[AMINO; MONO AND DI (UNSUBSTITUTED AND CYANO, HYDROXY AND/OR HALO-SUBSTITUTED) ALKYL- AND/OR ALKANOYL-AMINO; N-heterocyclic; or N-(unsubstituted and aryl, haloaryl, alkoxyaryl, nitroaryl and/or heterocyclic- substituted) alkylidene or cycloalkylidene]-6-[(unsubstituted and halo, nitro, carbo lower alkoxy, alkyl, alkoxy, alkylmercapto, aralkylmercapto, aryloxy and/or arylmercapto-substituted) aliphatic, cycloaliphatic, araliphatic, aryl, or heterocyclic]-1,2,4-triazine-5-ones, which possess herbicidal properties, and which may be produced by conventional methods.

Abstract: Phosphoro-amido-thioates, i.e. O-alkyl-O-[2-nitro-4-(alkyl, alkoxy and chloro)-phenyl]-N-alkyl-phosphoro-amido-thioates and O-alkyl-O-[2-nitro-4-(optionally alkyl, alkoxy and chloro)-phenyl]-N-cycloalkyl-phosphoro-amido-thioates, or O-alkyl-O-[2-nitro-4-(alkyl, alkoxy and chloro)-phenyl]-N-alkyl-amido-thionophosphates and O-alkyl-O-[2-nitro-4-(optionally alkyl, alkoxy and chloro)-phenyl]-N-cycloalkyl-amido-thionophosphates, which possess herbicidal properties and which may be produced by conventional methods.

Abstract: Compositions and methods of using certain imidazolidin-2-on-1-carboxylic acid amides, i.e. imidazolidin-2-on-1-carboxylic acid alkyl and alkenyl amides, some of which are known, which possess strong herbicidal properties, and which may be produced by conventional methods.