Vol. 11, Issue 11 (2022)

Cluster bean is being grown in India since ancient times not only for consumption but also as a good source of nutrition and industrial prospectus. Its production suffers with many biotic and abiotic factors. Leaf blight spot disease triggered by Alternaria cucumeria var. cymopsidis is one of the frightful diseases in cluster bean causing enormous economic losses. The present study was conducted in order to evaluate the efficacy of different twelve fungicides against Alternaria cucumeria. The efficacy of these fungicides recorded at in vitro against Alternaria cucumeria at recommended doses 500 ppm, 1000 ppm, 1500 ppm. It was concluded that among all twelve fungicides used for this study, Tricyclazole, and Tebuconazole + Trifloxystrobin found to be superior at experimented doses with maximum inhibition of mycelium growth (100%).