questions: telling that he has cultivated ridge gourd and spine gourd. now as both the plants has started bearing fruits, they have started to rot and then drop. asking the remedy for the same. 
 answers: suggested mr. gohain to spary dithane-z-78 @ 2 milli litre per litre of water to get rid off from this disease. also advised to use the same along with the same formulation in case of downy mildew disease.