De Chaunac
De Chaunac is a French-American hybrid wine grape variety used to make red wines. It was developed by Albert Seibel circa 1860. It is also known as Seibel 9549 and is a cross of Seibel 5163 and possibly Seibel 793. The wine was named after Ademar de Chaunac for a pioneer winemaker from eastern Canada.[1]
De Chaunac is known to have a very vigorous growth habit and good resistance to powdery mildew and downy mildew. It is grown in varying amounts for wine production across the northeastern side of North America, especially in the winegrowing regions of New York, Pennsylvania, Nova Scotia, Ontario, and other northeastern wine growing areas.