My Choke Cherry tree looks to have a fungus on it. I noticed the foliage did...
My Choke Cherry tree looks to have a fungus on it. I noticed the foliage did not seem as dense this year. When I looked closer, I noticed branches with what looks like a fungus and it is killing some of the leaves. What can I do about this as I sure don't want to lose my tree.
It appears that your tree has black knot.
Please refer to the following horticulture article on black knot by Wisconsin Master Gardener Volunteers.
If you have additional questions please dom not hesitate to contact me.