Last year our Empress tree was covered in flies eating away at the leaves.
How Do You Get Flies Off an Empress Tree
Certified GKH Gardening Expert
I have a hunch your empress tree was covered in whiteflies. For more information on whiteflies and a course of treatment, please visit the following link:
For more information on the care of empress trees, please visit the following link:
use a systemic insecticide like bayer. apply to the ground under the tree's drip edge. water it in heavily.