Use of 5-amino-pyrazol-derivatives for combating micro-organisms

A method for controlling a plant disease caused by a fungus comprising applying to said fungus and/or its locus a 5-amino-pyrazole of the formula

• wherein
• R1 represents alkyl having 1 to 4 carbon atoms, cycloalkyl having 3 to 7 carbon atoms, alkoxyalkyl having 1 to 4 carbon atoms in the alkyl moiety and 1 to 4 carbon atoms in the alkoxy moiety or represents halogenoalkyl having 1 to 4 carbon atoms and 1 to 5 halogen atoms,
• R2 represents hydrogen, fluorine, chlorine, bromine, cyano, nitro, trifluoromethylthio, difluoromethylthio, alkoxycarbonyl having 1 to 4 carbon atoms in the alkoxy moiety or represents alkenyloxycarbonyl having 2 to 4 carbon atoms in the alkenyloxy moiety,
• R3 represents optionally cyano-substituted alkyl having 1 to 4 carbon atoms or represents cycloalkyl having 3 to 6 carbon atoms which is optionally mono- to trisubstituted by substituent(s) selected from the group consisting of halogen and alkyl having 1 to 4 carbon atoms,
• R4 represents hydrogen, alkyl having 1 to 4 carbon atoms or represents cycloalkyl having 3 to 6 carbon atoms which is optionally mono- to trisubstituted by substituent(s) selected from the group consisting of halogen and alkyl having 1 to 4 carbon atoms,
• Y represents alkanediyl having 1 to 4 carbon atoms which is optionally mono- or disubstituted by halogen and/or cycloalkyl having 3 to 6 carbon atoms and
• R5 represents phenyl wherein the radical may be mono- to tetrasubstituted by substituent(s) selected from the group consisting of halogen, nitro, cyano, C1-C12-alkyl, C1-C12-alkoxy, C1-C12-alkylthio, C1-C12-halogenoalkyl, C1-C12-halogenoalkoxy, C1-C12-halogenoalkylthio, C2-C12-alkenyl, C1-C4-alkoxy-C2-C12-alkenyl, C1-C4-alkylthio-C2-C12-alkenyl, C2-C12-halogenoalkenyl, carboxyl, hydroximinoalkyl having 1 to 4 carbon atoms in the alkyl moiety, alkoximinoalkyl having 1 to 4 carbon atoms in the alkoxy moiety and 1 to 4 carbon atoms in the alkyl moiety, alkenyloximinoalkyl having 2 to 4 carbon atoms in the alkenyloxy moiety and 1 to 4 carbon atoms in the alkyl moiety, alkylcarbonyl having 1 to 6 carbon atoms in the alkyl moiety, alkylcarbonyloxy having 1 to 4 carbon atoms in the alkyl moiety, or by phenyl, phenoxy, phenylthio, benzyl, benzyloxy wherein the five last mentioned radicals may be mono- to trisubstituted by radical(s) selected from the group consisting of halogen, nitro, cyano, C1-C4-alkyl, C1-C4-alkoxy, C1-C4-alkylthio, C1-C4-halogenoalkyl, C1-C4-halogenoalkoxy and C1-C4-halogenoalkylthio,
• or
• R5 represents phenyl wherein the radical is monosubstituted by a radical of the formula
• in which
• R6 represents phenyl, which may be mono- to trisubstituted by substituent(s) selected from the group consisting of halogen, alkyl having 1 to 4 carbon atoms, halogenoalkyl having 1 to 4 carbon atoms and 1 to 5 halogen atoms and halogenoalkoxy having 1 to 4 carbon atoms and 1 to 5 halogen atoms,
• or
• R5 represents phenyl wherein the radical is monosubstituted by a radical of the formula
• wherein
• R8 represents alkyl having 1 to 6 carbon atoms, benzyl wherein the two last mentioned radicals may be mono- to trisubstituted by substituent(s) selected from the group consisting of halogen, alkyl having 1 to 4 carbon atoms, halogenoalkyl having 1 to 4 carbon atoms and 1to 5 halogen atoms and halogenoalkoxy having 1 to 4 carbon atoms and 1 to 5 halogen atoms