Field experiment was conducted during summer season (February –August) and winter season (December-January) to control vine decline, wilt and root rot diseases of melon. The treatments comprising seed application with Carbendazim (2g/kg seeds) before sowing, soil amendment with mustard oil cake (2 tons/ ha.) 15 day prior of seed sowing and soil drenching with either Carbendazim (2%) or mustard cake extract twice after fruit setting to maturity significantly decreased vine decline, wilt and root rot and increased yield as well as vine and root length.