Question: query regarding control of fruit roting and droping in pumpkins. 
Answer: use npk 19:19:19 as foliar spray 10 gram per liter of water 2 times at 15 days interval in the evening time. make 3 dys gap and then spray on micronutrient-stanes microfood 5 gram per liter of water 2 times at 10 days interval in the evening time in the absence of rain.