There are two types of tree owners; those who think trees are ornaments and those who think they are organisms. Most have no idea that a tree is ill and generally call for help when its to late for help. Tree owners, the ones that truly take an active role in taking care of their landscape have healthier and more aesthetic looking plants. This a fact, I cannot stress more that if you treat a tree as a organism that requires care(water,fertilizer,pruning) it will respond in kind.
One of the most important needs for a tree, especially the young ones is water. Nothing can survive without and if you were to miss just one watering that in itself can be a life altering event.