Hello! I have a tree close to the house that has developed something over the last couple of years. Not sure what kind of tree it is, but it is a fast growing tree with dark purple leaves all year. I have attached a picture of the fungus? it has developed. The fungus is black and hard and makes the branches brittle. I cut most of it off this year but cannot reach up to the top to get it all. Probably a 30’ tree.
Linn County Iowa