Pin oak bark growth

Asked January 9, 2019, 9:52 AM EST

I have large pin oaks across the front of my yard. They enjoy direct sun and abut the street. Recently, while picking up twig size branches, I noted an unusual growth. It resembles a smashed grape . Dark in color. Seems to arise in clumps. What is it? Should I be concerned? Is any action recommended? Photo attached

Howard County Maryland mushrooms trees jelly fungus on dead wood

1 Response

This is a natural occurrence and nothing to worry about.
It is a type of jelly fungus, now dried, which grows on dead wood when conditions are right.
There is nothing you need to do.

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