Maple blight?

Totally mundane but fairly immediate question: does anybody know if something is attacking maples locally? I've got a guy in my backyard right now, chainsawing the big limbs that fell off the maple back there a couple of weeks ago. I hadn't given it much thought, but noticed this morning that, now that leaves are really coming out, I see that several of my maples are in really bad shape. Many dead leaves, lots of holes in the ones that are there -- it's all very unhappy-looking. If it was just that one tree I would be distressed (since it is, among other things, the shade tree for the addition), but the big one in front doesn't look much better.

So I'm curious whether something is going on. Plants aren't my forte, but I'm detecting a trend I don't like...

Maple blight?

Totally mundane but fairly immediate question: does anybody know if something is attacking maples locally? I've got a guy in my backyard right now, chainsawing the big limbs that fell off the maple back there a couple of weeks ago. I hadn't given it much thought, but noticed this morning that, now that leaves are really coming out, I see that several of my maples are in really bad shape. Many dead leaves, lots of holes in the ones that are there -- it's all very unhappy-looking. If it was just that one tree I would be distressed (since it is, among other things, the shade tree for the addition), but the big one in front doesn't look much better.

So I'm curious whether something is going on. Plants aren't my forte, but I'm detecting a trend I don't like...