What are the symptoms of root rot disease in moringa and how it can be controlled?

The symptoms of the disease appear as oozing of gum from the affected bark which remains as an encrustation on the bark. Droplets of gum trickle down the stem. Leaves turn yellow and pale and fruit yield is greatly reduced. It can be controlled by maintaining trees and keeping them in vigorous growing conditions. Broken limbs should be cut properly and wound in the bark especially on limbs and forks should be scraped and protected with Bordeaux mixture. Crop rotation, proper sanitation and removal of crop residues is effective in keeping the disease in check.