What are the symptoms? Effective treatment depends on accurate diagnosis, same as with medical problems.

I'm 90% sure it's botrytis. Dark gray/black patches on leaves and newest shoots. Some shoots have lost all leaves from tips to about 4 or 5" back toward the trunk. Infection began when weather turned cool and damp. The older portions of the tree seem the least effected.

Can you post pictures, please?

i have a maple tree thats about 5 yrs old .any way for the last 3 yrs .these first green then turn red bumps on leaves, seems to be getting worse /spreading .what can i do .also i have other trees an they dont seem to have it .i dug all these trees up off my place.an there growning well and seem to be healthy except the one with red bump .looks sorta like potato bug eggs that get on your taters under the leaves except there hard .and on top of the leaves

Mountainboy- like in the link below?

tj

Here is a link that might be useful: Maple Gall Mite