Maintaining a wood apple tree involves the following:

1. Climate and Soil: Plant in tropical or subtropical climates with well-draining soil.
2. Watering: Provide regular watering, especially during dry periods. Avoid waterlogging.
3. Fertilization: Feed the tree with a balanced fertilizer during the growing season to promote healthy growth.
4. Pruning: Regularly prune to shape the tree, remove dead or crowded branches, and maintain overall tree health.
5. Pest and Disease Control: Monitor for pests and diseases, and treat promptly if issues arise. Wood apples can be susceptible to pests like fruit flies.
6. Harvesting: Harvest the fruit when the outer shell turns from green to yellow or brown, indicating maturity.

By attending to these aspects, you’ll support the well-being of your wood apple tree and enjoy a fruitful harvest of this unique and culturally significant fruit.