The invention relates to active compound combinations, in particular within a composition, which comprises (A) an amidine compound of formula (I) and a further fungicidally active compound (B). Moreover, the invention relates to a method for curatively or preventively controlling the phytopathogenic fungi of plants, to the use of an active compound combination according to the invention for the treatment of seed, to a method for protecting a seed and not at least to the treated seed.
