Is this tree dying of oak wilt?
The red oak in my backyard has been declining for the past 3-4 years. Someone mentioned that it might be oak wilt. How can I get a diagnosis? And if it is oak wilt, what authorities do I need to inform? I'm under the impression that it hasn't officially made it to Howard County, MD yet.
We cannot determine if the tree is diseased or not from your photos.In the meantime suggest having a licensed arborist look at the tree. they usually do not charge for an on site visit.The attached will help you find one for your area.http://www.treesaregood.org/
See the attached for pictures of bacterial leaf scorch.