active compound combinations according to the invention can be present in the formulations as mixtures with other known active compounds such as fungicides insecticides acaricides and herbicides and also as mixtures with fertilizers or plant growth regulators the active compound combinations can be used as such in the form of their formulations or as the use forms prepared therefrom such as ready to use solutions emulsifiable concentrates emulsions suspensions wettable powders soluble powders and granules they are used in the customary manner for example by watering spraying atomizing scattering brushing on and as a powder for dry seed treatment a solution for seed treatment a water soluble powder for seed treatment a water soluble powder for slurry treatment or by encrusting in the treatment of parts of plants the concentrations of active compound in the use forms can be varied within a substantial range in general they are between 1 and 0 0001 by weight preferably between 0 5 and 0 001 in the treatment of seed amounts of 0 001 to 50 g of active compound per kilogram of seed are generally required preferably 0 01 to 10 g in the treatment of the soil active compound concentrations from 0 00001 to 0 1 by weight preferably 0 0001 to 0 02 by weight are required at the site of action the good fungicidal activity of the active compound combinations according to the invention can be seen from the.