Department of Agriculture, Agriculture and Forestry University, Rampur, Chitwan, Nepal
Research Article
Management of Powdery Scab (Spongospora subterranea) of Potato in Dailekh, Nepal
Author(s): Roman Pandey*, Ritesh KumarYadav, Dipesh Giri, Bibek Budhathoki, Ram Chandra Neupane and Sudan Gautam
Powdery scab caused by Spongospora subterranea (Wallroth) Lagerheim f.sp. subterranea is a serious disease of potato worldwide. The disease has been reported in a severe form in different potato growing areas of Nepal, particularly western hills. At present, it is a major problem for fresh and seed tuber producer as it reduces substandard appearance and marketability of tuber which makes it as a quarantine potato disease in Nepal. The disease is a major reason for limiting the export potato from western hills. The infected tubers were planted in same field year after year. When the monsoon brings abundant rain during growing season, condition was often favourable for the development of powdery scab. The disease causes powdery lesion on the surface which appears like scab containing mass of powdery spore balls. The initial visible symptom is the development of purple .. View more»