WHY ARE LOWER BRANCHES OF MY SPRUCE DYING?
Cytospora canker of spruce A common malady of blue spruce trees in southeast Michigan is a tree disease called Cytospora canker. Trees 20 years of age or older tend to be affected the most. Needles on lower branches will often become yellow, then brown. Often, needles will fall off the tree while still green. After several weeks, infected lower branches will appear defoliated and dead. Usually a bluish-white resin will be observed on branches near the trunk. The presence of…