Performance of Nine Pecan Cultivars in Southern Georgia

Abstract

Nine pecan [Carya illinoinensis(Wagenh.) C. Koch] cultivars ('Cherryle', 'Desirable', 'Excel', 'Faircloth', 'McMillan', 'Nacono', 'Stuart', 'Tobacco Barn', and 'Zinner') were evaluated for 12 years in a southern Georgia test orchard. Annual yields were measured for each tree and a subsample of nuts was taken to determine percent kernel, nut volume, and nut weight. Trees were also evaluated for fruit cluster size, date of 50% shuck split, and the presence of damage from pecan scab [Fusicladium effusum(G. Winter) (syn. Cladosporium caryigenum(Ellis & Langl.) Gottwald)] and black pecan aphid [Melanocallis caryaefoliae(Davis)]. One cultivar, 'Zinner', was found to be suitable for trial in commercial orchards in southern Georgia. Two other cultivars, 'Excel' and 'McMillan', have high levels of pecan scab resistance and are recommended for use in low-input or home orchard situations.