Trees contribute mightily to a landscape's value, so it's important to keep them healthy. Like people, trees can succumb to various diseases. But since trees don’t cry out in pain, they can’t tell humans when something is wrong. It’s up to you to spot and treat a disease before it causes irreparable damage. If a tree becomes diseased, it can be a potential hazard. Diseased trees can become weak and more vulnerable to severe weather. With the proper knowledge, it’s possible to rescue ailing trees. Discover 7 Common Tree Diseases and what to do about them before it is too late.