We get asked about trees a lot. Generally, trees that are not doing well lose their leaves at the top first when the rest of the tree looks healthy. This problem can be corrected with some love and care from an Arborist. If a tree is losing its bark unexpectedly, please have an arborist look at it. There is a chance it is treatable. If half a tree looks dead, it is probably time to remove it. If a tree is splitting, it is time to remove it. If a tree is growing mushrooms on the side out of the trunk, it could be serious and it is definitely time to cut it down.