I have a swamp oak that started dropping leaves which have a black discoloration. I had a arborist out to look at the tree while I was at work. It’s not oak wilt, but he believes it’s stress possibly, and is recommending a couple of treatments ( injections ). I’m thinking the leaves dropping is caused by our cool, wet weather. Has there been a rash of oak, or other trees in our area dropping leaves also. My thought is the leaves will grow back on their own. Any thoughts? Thanks, Rick