I see this occasionally on my large-leaf cattleyas and have watched a bird (often a red-headed woodpecker) pecking away at a leaf. Why, I don't know. Those pockmarks stay for the life of the leaf but I have never seen a disease associated with this.
drdawg (Dr. Kenneth Ramsey)
The reason it's so hard to lose weight when you get up in age is because your body and your fat have become good friends.