hello! We've just planted a new sugar maple - 2" caliper, about 12' high. It seemed to be doing okay but now we see it's being "visited" by a leaf cutter bee...nearly every leaf on the tree has been nibbled on. I've read that leaf cutters rarely do permanent damage, but this is a very young tree...how much should I worry? anything I can do to help the tree? thanks so much in advance.