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White stuff on arborvitae trees #771758

Asked September 15, 2021, 2:41 PM EDT

There is a white growth on the lower branches of some of the arborvitae trees. Otherwise they appear healthy. I am not sure how to treat this and it appears to be spreading to some of the other trees. There are white pine trees mixed in with some of the arborvitae‘s and the one next to the arborvitae in the picture appears stressed.

Washington County Maryland

This work is supported in part by New Technologies for Ag Extension grant no. 2020-41595-30123 from the USDA National Institute of Food and Agriculture. Any opinions, findings, conclusions, or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the view of the U.S. Department of Agriculture.

White stuff on arborvitae trees #771758

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