Q.Holly Tree
I have a question about one of our holly trees. It looks like it is dying. The leaves are a lighter shade of green, have spots, are curled and dropping off, and the berries are reddish brown. The leaves seemed to have stopped dropping off. The other holly trees are ok. We live in West Central Illinois by the Mississippi River. I have looked on the Internet for what’s wrong and how to treat the tree with little luck.

Certified GKH Gardening Expert
There are several reasons this might occur. These articles will help you better pinpoint what it might be:
https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm
https://www.gardeningknowhow.com/ornamental/shrubs/holly/holly-yellow-leaves.htm