The invention relates to a composition, which comprises (A) a compound selected from the group of safeners consisting of mefenpyr, mefenpyr-diethyl, cloquintocet, cloquintocet-mexyl and (B) at least one fungicidally active compound selected from the group consisting of prothioconazole, tebuconazole, difenoconazole, fludioxonil and (C) a compound selected from the group of fungicides consisting of metalaxyl or mefenoxam. Moreover, the invention relates to a method for curatively or preventively controlling the phytopathogenic microorganisms of plants or crops, to a method for improving yield of plants by using of a composition according to the invention, for the treatment of seed, to a method for protecting a seed and to the treated seed.
