 By the end of the 1950s there were 65,770 acres (26,616 hectares) of Couderc noir planted throughout France, well more than Cabernet Sauvignon.In fact, it wasn't until the 1970s that years of vine pulling schemes by the French government reduced Couderc noir's numbers enough to allow Cabernet Sauvignon to surpass the hybrid in total plantings.Couderc noir is known as a vigorous vine prone to producing high yields.