Black scurf also known as stem canker disease on potato is causing an economically losses to the potato crops which causes both quantitative and qualitative damage occurs in potato production areas worldwide. The pathogen limits the growth by forming cankers on sprouts, underground stems, and stolons, and makes tubers lewd by producing black scurf (sclerotia) on tuber surfaces. In the present investigation, 18 potato varieties were screened against black scurf caused by Rhizoctonia solani. Out of eighteen varieties, three varieties expressed immune response, seven varieties found resistant, six varieties found moderately resistant, whereas the variety Kufri Ashok and Kufri Pukhraj expressed moderately susceptible and highly susceptible reaction respectively. None of the variety showed susceptible reaction.

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