Abstract: Two chemical viz. 3% boric acid solution and 3% elemental sulphur solution each for two different duration of times i.e. 10 and 20 min were evaluated again common scab of potato at Battakundi Farm in Kaghan valley in summer 2001. Both the chemicals gave significant control of the disease incidence as compared to the control. However T3 gave the best results among all the treatments in terms of disease incidence and disease severity. No significant difference was observed in both chemicals in terms of yield.