How Do I Cure a Gray Spindly Fungus Growing on the Bark

Question

How do I get rid of a gray spindly fungus growing on a holly tree?

Answer 1

It sounds like you have lichen. It is harmless, but if you want to remove it, this article will help:
https://www.gardeningknowhow.com/ornamental/fungus-lichen/treatment-tree-lichen.htm

Answer 2

If this article doesn't help, take a sample to your local agricultural extension office for identification and suggestions for treatment: https://www.gardeningknowhow.com/ornamental/shrubs/holly/diseases-of-holly-bushes-pests-and-diseases-damaging-holly-bushes.htm