In vitro Efficacy of Fungicides Against Leaf Spot of Sarpagandha Caused by Cercospora rauvolfiae Rautela P.1,*, Vishwanath1, Gupta S.1, Azad C. S.1 1Department of Plant Pathology, College of Agriculture, GBPUA&T, Pantnagar, 263145, India *email: pankajrtl@gmail.com
Online published on 2 January, 2017. Abstract Rauvolfia serpentina (Indian snakeroot) commonly known as sarpgandha is an important medicinal plant of Indian subcontinent. Diseases caused by foliar pathogens are major constraint in the economic production of the alkaloids from the dry roots of the plant causing severe losses under congenial environmental conditions. Leaf spot caused by Cercospora rauvolfiae is of major importance, resulting in huge economic losses. Considering the importance of the crop and the disease, the study was undertaken to evaluate the relative efficacy of five fungicides viz., carbendazim, hexaconazole, tebuconazole, propiconazole and chlorothalonil at 5, 20, 50 and 100ppm concentration for management of this disease. Results of this study suggest that, carbendazim showed complete inhibition (100%) of mycelial growth at all concentrations followed by hexaconazole and tebuconazole which also inhibited the mycelial growth completely at concentration of 100ppm while least inhibition of mycelial growth was recorded in case of chlorothalonil even at higher concentration of 100 ppm. Top Keywords Cercospora, leaf spot, sarpgandha, management, fungicides. Top |