Issue with Blue Spruce
Blue spruce are growing here out of their natural range. Michigan’s humid weather seems to encourage a number of needlecast and other diseases and pests. As a result at a certain age, usually when trees are mature, you see them decline from these issues.
Here are some articles that discuss this-
To get a precise diagnosis, there are two options:
1- submit samples to https://pestid.msu.edu
2- Hire a certified arborist, a professional who has taken training in care, diseases, pests and passed certification tests. He/she will come on site and give a complete diagnosis and a plant care plan. Find certified arborists by zip code here—-
Eventually the tree will need to be replaced. Here are some suggested trees that are similar to blue spruce but so not have the problems.
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