The present invention relates to a method for reducing or preventing damage caused by pesticides to plants treated therewith and/or to plant propagation material treated therewith and/or to plants growing from this plant propagation material and/or to plants which grow in a growth medium which has been or is treated therewith, which method comprises treating the plant propagation material and/or the plants and/or the growth medium with at least one of these pesticides in combination with dimethomorph. Moreover, the invention relates to the use of dimethomorph as safener for pesticides which have a phytotoxic effect on plants treated therewith, on plant propagation material treated therewith, on plants growing from plant propagation material which has been treated therewith and/or on plants which grow in a growth medium which has been or is treated therewith. Furthermore, the invention relates to compositions which comprise dimethomorph and specific fungicides and/or specific insecticides and to the use of a composition comprising dimethomorph and said specific fungicides for controlling harmful fungi. Finally, the invention relates to plant propagation material which has been treated with a composition according to the invention.