Question: query regarding management of fruit rot and drop in ridge gourd 

Answer: at first spray ustad/ profex super 2ml/liter @ 5 days interval in the evening time. by maintaining of 3 days gap spray neem oil 5 ml/liter of water at 5 days interval continously up to the end of the season. after completion of 3 spray of insecticide, spray zoom 5-6 ml/liter of water 3 times at 7 days interval and spray atonic 2 ml/liter of water at 15 days interval in the evening time upto the end of the season.