A method of controlling growth and/or controlling or preventing pathogenic damage or pest damage in a plant propagation material, a plant, parts of a plant and/or plant organs that grow at a later point in time, which comprises applying on the plant, part of the plant, or surroundings thereof, a pesticidal combination comprising, for example, at least two active ingredient components optionally together with one or more customary formulation auxiliaries, wherein component (I) is one or more of a pesticide and component (II) is isoflavone (formononetin.genistein or mixtures thereof) in any desired sequence or simultaneously.