questions: query about viral disease problem in pumpkin. 
 answers: spray rogor or tricel @ 2ml/litre of water for 2-3 times at 5-7 days.
apply borax @ 25-40g/plant at the basal portion in ring method.
growth hormone: spray planofix @ 1ml/4.5 litre of water for 2 times at 15 days interval.
vitamin: spray mahafal @ 2ml/litre of water for 2 times at 15 days interval.