Bayer Aktiengesellschaft

Heinz-Otto Horstmann

Klaus Wangermann

Karl Reizlein

Ulrich Engelhardt

Wolfgang Wirth

Rolf-Jurgen Singer

Uwe Priesnitz

Gunther Boehmke

Hans Schulze

Frank Bartkowiak

In the spraying of an aqueous liquor comprising at least one of 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-ol and 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-ol, the improvement which comprises including in the liquor an N-alkyl-lactam of the formula ##STR1## in which R represents alkyl having 8 to 18 carbon atoms and

N-alkyl-lactams as crystallization inhibitors

Crystallization of active material in spraying of an aqueous solution of certain specified fungicides is retarded by incorporation therein of an N-alkyl-lactam of the formula ##STR1## in which R represents alkyl having 6 to 18 carbon atoms and

N-allyl-lactams as crystallization inhibitors

Crystallization of active material in spraying an aqueous solution of one of ##STR1## and is prevented by incorporation therein of an alkylcarboxylic acid dimethylamide of the formula ##STR2## in which R represents alkyl having 5 to 19 carbon atoms.

Alkylcarboxylic acid dimethylamides as crystallization inhibitors

In the spraying of an aqueous liquor comprising at least one of 1-(4-chlorophenyl)-4,4-dimethyl-3-(1,2,4-triazol-1-yl-methyl)-pentan-3-ol and 1-(4-chlorophenoxy)-3,3-dimethyl-1-(1,2,4-triazol-1-yl)-butan-2-ol, the improvement which comprises including in the liquor di-styryl-phenyl-tri-glycol ether, whereby crystallization of II and III is reduced.

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Bergisch-Gladbach, Germany

Heinz-Otto Horstmann