Novel triazole of the formula ##STR1## in which R represents alkyl, cycloalkyl or the groupings ##STR2## wherein X.sup.1 represents hydrogen or halogen,X.sup.2 represents halogen,Y represents alkoxy, alkylthio, halogenoalkoxy, halogenoalkylthio, alkenyl, alkoxycarbonyl, cyano, optionally substituted phenyl, optionally substituted phenoxy, optionally substituted phenylthio, optionally substituted phenylalkoxy or optionally substituted phenylalkylthio andn represents the number 0, 1 or 2,Z represents halogen, alkyl, halogenoalkyl, halogenoalkoxy, halogenoalkylthio or phenyl andm represents the number 0, 1, 2, or 3,or addition products thereof with acids and metal salts, which exhibit fungicidal and plant growth-regulating activity.