The leaf curl caused by Taphrina deformans (Berk.) Tul. is the most serious disease of stone fruits viz., peachs and nectarines which counts for loss in quantitative and qualitative yield. Germplasm of these stone fruits was screened against T. deformans and data in terms of disease incidence (%) and disease severity (%) were recorded. It was observed that in peach, cent percent disease incidence was recorded in Glo haven, Pratap, Shan-e-punjab and Florida Peach while, minimum in Androse (30%) whereas, maximum disease severity was observed in Red Haven (1.13%), Pratap (1.10%), Early Elberta (1.07%) and minimum in Early Grande (0.53% ). In nectarine, cent per cent disease incidence was observed in Independence, Early Red Haven, Punjab Nectarine and Syria while, minimum disease incidence (33.33%) and severity (0.3%) was recorded in Silver of Rome whereas, maximum disease severity was observed in Red Gold (1.58%), Independence (1.2%) and Early Red Haven (1.2%).
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