Question: asking about downey mildew of ridge gourd
Answer: recommended to apply saaf@ 2g/lit spray twice at 5 days interval 
after one month of planting apply urea as top dressing  3kg/bigha.
for pumpkin plantation plant to plant distance is 0.9 to 1 m 
fertilizer dose
urea 22 kg/bigha, ssp 67 kg/bigha and mop 18 kg/bigha