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Three fungicides and six insecticides at recommended concentrations were evaluated as tank mix in various fungicide and insecticide combinations for their efficacy against sheath blight, brown plant-hopper and leaf folder and to investigate their compatibility as tank mix application for the purpose of reducing the application cost in the event of simultaneous occurrence of both diseases and pests during crop growth period. Among the different combinations tested, pymetrozine@ 0.5 g/l in combination with hexaconazole@ 2 ml/l recorded less sheath blight incidence (9.1%) severity (14.8%) and also lesser number of plant-hoppers (0.5/hill) followed by pymetrozine@ 0.5 g/l+ validamycin@ 2 ml/l (9.6%, 15.0% and 0.7/hill) and combination product of imidacloprid+ ethiprole@ 0.8 g/l+ hexaconazole@ 2 ml/l (9.2%, 18.2% and 0.4/hill) compared to untreated check where the incidence and severity of sheath blight was 93.6% and 81.9%