One of our silver maples (Acer saccharinum) suffers (to whatever extent a tree can suffer) from galls created by maple bladdergall mites (Vasates quadripedes). It's a fairly young tree that leans south from the edge of the woods, and has had these galls every year since I first noticed the tree. But this year the problem (if it really is one) seems worse than previous years. What prompted me to take a look at it today were the helicoptering seeds flying down from our bigger silver maple on the west side of the house.
