Tree disease

Asked March 21, 2020, 10:51 AM EDT

Please advise to what is wrong with this blue spruce and how to treat it

St. Clair County Michigan

1 Response

Spruce decline has been rampant throughout Michigan for better than a decade, especially for Colorado Blue Spruce. There are a number of needlecast diseases,
cankers, insects such as mites, among others that are responsible and often it is more than one of the above stressing the same tree. Read more here:
https://www.canr.msu.edu/news/spruce_problems_are_probably_caused_by_more_than_a_single_agent

And here: https://www.canr.msu.edu/news/what_is_spruce_decline_and_what_should_you_do_about_it

We strongly recommend an onsite evaluation by a Certified Arborist, who will be well versed in spruce issues because they have become so common. You can find one or more Certified Arborists in your zip code at www.treesaregood.org Click on the Find an Arborist tab. Arborist evaluations are not expensive and where you can learn exactly what is going on in your tree and what to do about it. These things do not get better on their own and will progress to death without intervention.

Good luck!