The present invention relates to a composition comprising at least one biological control agent selected from the group consisting of Streptomyces strains, preferably gougerotin-producing Streptomyces strains such as Streptomyces microflavus strain NRRL B-50550 and/or a mutant thereof having all the identifying characteristics of the respective strain, and/or at least one metabolite produced by the respective strain that exhibits activity against insects, mites, nematodes and/or phytopathogens and at least one fungicide (I) in a synergistically effective amount, with the proviso that the biological control agent and fungicide (I) are not identical. Furthermore, the present invention relates to the use of this composition as well as a method for reducing overall damage of plants and plant parts.
