What is eating the leaves of our Maple trees and turning the leaves red? - Cooperative Extension: Garden and Yard - University of Maine Cooperative Extension

Question: Our Maple trees have some holes in the leaves that look like something is eating them. They also have red and black raised dots on the leaves. At the tips of some of the branches, the leaves look like they are starting to turn reddish as if fall foliage was starting! Should we be read more