Evaluation of varietal resistance against almond scab (Cladosporium carpophilum) and its host range

Among the 12 almond cultivars screened, Primoskiij was categorised as resistant with minimum disease intensity (4.67%) where as IXL and butte showed moderately resistant and moderately susceptible reaction having disease intensity of 5.33% and 23.33%, respectively. While all other nine cultivars exhibited susceptible to highly susceptible reaction against the disease. From the host range studies conducted on different stone fruits (almond cv. Makhdoom, apricot cv. Halman and peach cv. Elberta) it was observed that all the cultivars of stone fruits were susceptible except cherry cv. Napoleon and plum cv. santa rosa. the maximum disease intensity (47.17%) was recorded on almond cv. Makhdoom with minimum incubation period (14 days) while minimum disease intensity (23.50%) with maximum incubation period (21 days) was recorded in apricot cv. halman.