I really want to save this guy. I've lost trees for not acting quick enough. Last year I bought it at sale in home depot here in Washington dc and did a trunk chop to lowest branch. then I pruned roots and placed it in the pot shown in picture. maple did fine, dormancy went smoothly, and I had a vibrant tree by midspring. about a month ago I noticed the leaves on one of three main branches wilted. the whole branch ended up dying. now the other two branches look like they are beginning to wilt see picture. I checked for spider mite webs but didn't find any.