The invention provides a composition comprising at least one biological control agent which is Bacillus subtilis AQ713 (NRRL Accession No. B-21661) and at least one fungicide (I) selected from the group consisting of dimethomorph and iprovalicarb in a synergistically effective amount, wherein the synergistic weight ratio of biological control agent and fungicide (I) is between 1:0.0005 and 1:0.5. The invention also provides seeds treated with the composition of the invention, and the use of the composition as fungicide and/or insecticide.
