Blue pine (Pinus wallichiana) plantations in Kashmir forests have been noticed to be affected by blight diseases showing typical symptoms of shoot blight, die-back and curling of terminal shoots. Plants grown in nutritionally poor soils are more susceptible to diseases. The type of major nutrient supplementation plays a major role in predisposition of plant to the infection by needle blight pathogens. Three fungi were isolated from the infected needles of Blue pine bearing fructification. Different carbon and nitrogen sources were assessed in a suitable medium to ascertain the most suitable nutrient elements for growth and development of these pathogens. | Physiological studies of pathogens of genus botryosphaeria isolated from blue pine Pinus wallichiana with respect to their carbon and nitrogen requirements
