Knowledgebase

Spruce branch turning yellow #772540

Asked September 21, 2021, 1:22 PM EDT

In the last couple of weeks a single branch on an old spruce is turning yellow. No pests visible, nor any I can shake off. Rest of tree seems ok. Any ideas?

Olmsted County Minnesota

Expert Response

We don't know why the needles are yellow on the branch shown in the photos.  The following publications which discuss similar symptoms may suggest possibilities.

http://hyg.ipm.illinois.edu/article.php?id=132

https://bygl.osu.edu/node/350

An Ask Extension Expert Replied September 21, 2021, 9:30 PM EDT

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