The present invention relates to novel active compound combinations and/or compositions comprising (A) a phenylamidine compound of formula (I) and (B) at least one biological control agent, to a process for preparing such active compound combinations and/or compositions and to the use thereof as biologically active compound combinations and/or compositions, for the control of phytopathogenic fungi and/or plant pests, especially for the control of phytopathogenic fungi in plants, in the protection of materials and as plant growth regulators.