Ficus tree outside
My ficus leaves are suddenly turning yellow! What can I do? It is outside, shaded and hasn't been moved for several years.f
Certified GKH Gardening Expert
The yellowing leaves could be due to watering issues, light change, insects, or fungus disease.
Is your Ficus in a container? If your watering has not changed, perhaps the plant needs repotting. It may need a slightly larger container--no more then 2" larger, and new soil.
If your tree is root bound and has not enough soil to properly give the tree water and nutrients.
Here is a link with more information.