drought, or something else?
Lots of oaks seem to be covered in brown leaves in my area (Howard County, MD) and I'm not sure if it's drought, or oak wilt or something?
Other trees have lost leaves too, some maples, and when I was at Dulles Airport last weekend, I saw some Callery Pears IN FULL BLOOM! The only thing I can think of is that they defoliated and then got watered either by rain or a late-arriving irrigation crew. Will those survive the winter, or will they be so thrown off they don't survive?