questions: query about control gummosis in bottle gourd. 
 answers: 1. always keep the orchard clean. prune unproductive, dry and disease/ insect infected branches.
2. the unproductive branches have fast upward growth. use bordeaux-paste 10% on wounds created by pruning and on the main trunk from the ground well to about one meter high.
3. spray bordeaux mixture 1% thoroughly on the whole plant after harvest and repeat again at fruit setting. monitor the orchard regularly.
4. if there is gum secretion on any part of the tree, clean it off and use bordeaux-paste 10% as mentioned before.
5. spray propiconazole(tilt) fungicide @ 1-1.5 g/l of water 2-3 times at an 10-12 days interval.