I have a landscape with maple bonsai setting which is bundled with our maple trees bundled. It is now late winter and early spring time, most of the maple tree have already started to have new buds and new branches. But one of my maple tree do not have any sign of life at all, no new buds, no new branches. some of the existing branch starts to dry up. There are still some branches with the life maple red color, but it is just not making any buds. how do I know if my maple tree is dead? if it is not dead yet, Can I still save it? What can I do to make it thrill again in the spring? or if it is dead, how should I take care of the rest of the trees?
i.e. The lower bark of the dying maple is peeling away due to some moss growth.