The invention relates to the use of succinate dehydrogenase SDH inhibitors (SDHIs), in particular bixafen, penflufen or fluopyram for controlling wood diseases in grape, to a method for treating plants or plant parts for controlling wood diseases in grape and to a method for controlling wood diseases in grape plants and plant parts, and in plants which grow from the seedlings, grafts and cuttings, by treating them with SDHIs.