RESISTANCE OF MUSCADINE GRAPES TO ANGULAR LEAF-SPOT (MYCOSPHAERELLA-ANGULATA JENKINS) IN NORTH FLORIDA

Angular leaf spot is a common but rarely studied disease of muscadine grapes (Vitis rotundifolia Michx.) in the southeastern United States. During 1994 and 1995, we performed two field evaluations of angular le af spot on 30 muscadine cultivars. Based on disease severity data, no cultivar was immune to angular leaf spot; however, 'Albermarle', 'Dore en', 'Higgins', 'Noble', 'Regale', 'Scuppernong', 'Southland', and 'Su mmit' showed high degrees of resistance. 'Alachua', 'Darlene', 'Dixie Red','GA-3-9-2', 'Jane Bell', 'Janet','Jumbo', 'Pam', and 'Rosa' were susceptible.