Question: query regarding control of root rot in pumpkin. 
Answer: apply indofil m-45, 3 gram/liter of water near the root zone and also spray by covring the whole plant on a sunny days in the evening time, 3 times @ 5 days interval. spray one vitamins like biovita/mohaphol/sagorika 2 ml/liter of water continously by maintaining 15 days of gap in the evening time.