chewing up arbrovitae

Asked March 24, 2020, 9:34 AM EDT

I have an animal chewing off branches of my line of arborvitae. I don't think that this animal is eating or using the branches to nest, they are just piling up on the ground. What can I do to save my arborvitae?
Thank you!

Oakland County Michigan

1 Response

Hello, and thank you for the question.'
It is likely, that the animal chewing on your arborvitae is a squirrel. In the winter, when they are hungry, they chew the bark for food and nip off the ends of branches to use in a nest or for whatever reason they can think of. I'm attaching more information about squirrel damage. Unfortunately, there is little that you can do to control them, as you can read in these articles. You may spray the area below the trees with Liquid Fence or a capsicum (red pepper) spray which may deter them but there are a lot of squirrels out there and they do live in trees. Please read these articles for more information. and

You may also consult with a certified arborist to ask their opinion on what is causing the damage and how to deal with it. Contact an arborist in your area at, the website of the International Society of Aboriculture.