Regarding Orange Trees
What can be done when the leaves turn yellow? How do we get rid of yellow and orange leaves on an orange tree? How often should an orange tree be watered? 713-734-0820
Certified GKH Gardening Expert
Here's a great article that explains the causes, and treatment, for yellowing leaves on orange trees:
How often are you watering your tree now?
For guidelines on watering orange trees, please read the section "Taking care of an orange tree", sub-section "water".