Same here in the forest behind my house. European and American Beach trees are in very poor shape. I do have one Copper Beach in the yard that does not seem to be affected by the BLD, but has had some kind of white fungus on the leaves the past two seasons.
Wondering how this will affect the mushroom growth this year as all the dead oaks and dead or missing Beach leaves are letting a ton of extra sunlight down to the forest floor. Will the extra light reduce the humidity under the canopy and reduce the amount of mushrooms we get? I guess we'll see.