tree needs help!
I am located in central alabama and I have a problem with a tree located in my back yard, a beautiful 35 ft oak tree, of which variety I'm not sure. It has gotten for lack of a better term, blisters on top of all the leaves and on the bottom of the leaves
it has a white milky substance. The leaves look terrible and I would hate to loose this tree as it is the only one that provides any shade to the back yard.
Does anybody have any clue as to what might be happening?