TREE MD

摘要

Just like human health, the health of trees can be affected by a range of factors, some of which are more apparent than others. The most common causes of ill health in trees are insects, diseases, and environmental stresses. Unlike people, however, trees can't tell us where it hurts, so determining what's causing a tree to decline is often a challenge. Occasionally when diagnosing tree problems we can find a smoking gun, but often determining what is ailing a tree requires detective work to find clues and put the puzzle together. Here are some of the most common tree problems in landscapes and key factors for diagnosing them.