 It has a tendency to bud early and ripen late producing small, compact bunches that have a very low skin to juice ratio.The main viticultural hazard for the variety is its susceptibility to developing chlorosis which can inhibit chlorophyll production in the leaves and adversely impact photosynthesis.In 2009, there were 529 acres (214 hectares) of Couderc noir growing in southern and southwestern France with its numbers steadily declining.