Several genes or loci associated with downy and powdery mildews resistances have been identified in grapevines originating from America (Muscadina rotundifolia, V.rupestris, V.lincecumii), Asia (V.amurensis, V.romanetii) or Eastern Europe (Vitis vinifera L. cv Kishmish Vatkana). For Black rot, a secondary disease that should emerge with the expansion of resistant varieties and the reduction of the spraying targeted against downy mildew, sources of resistance in grapevine are very rare and limited to the...Read more