Hi, I have 2 sugar maples in my front yard that I planted almost 4 years ago. This spring they both began to leaf out simultaneously, however, one progressed more slowly, and then the leaves dies before they developed. Apparently the tree is suffering from some type of disease that I couldn't identify by searching the web. We've had tons of rain so water is not an issue. The drainage is good in the front yard, there is no standing water. The bark of the sickly tree is darker than its healthy and has dark splotches on it. I have been careful to avoid damaging any of my trees. I have attached photos of both trees. I'm wondering if the sickly tree is done for or if there are any steps that I can take to try to revive it (prune and fertilize)? Also I'm concerned about the green spots on the healthy tree, is it a fungus? Thanks. -Eric Top 3 photos are of the sickly tree. Bottom 2 photos are of the heathy tree.