The present invention relates to a composition comprising a) a pesticidal terpene mixture comprising, as pesticidally active chemical compounds, alpha-terpinene, p-cymene and limonene and b) at least one biological control agent selected from specific microorganisms and/or a mutant of it having all identifying characteristics of the respective strain, and/or a metabolite produced by the respective strain that exhibits activity against insects, mites, nematodes and/or phytopathogens in a synergistically effective amount. 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.