Aspen Trees
Q.

About my aspen tree oozing

Zone Steamboat Springs Colorado | Matts aspen added on April 21, 2015 | Answered

My aspen tree is oozing a lot of dark brown liquid out of what appears to be bored holes. I don't know if it is sap or not. It looks very unhealthy and in wondering if I have to cut it down. I don't really want to but if it is a disease I will so it doesn't spread to my other trees. I'm uploading a photo so you can see it and hopefully have some advice for me. Thank you very much for your time, Matt.

A.
A.Answers to this queston: Add Answer
shelley
Certified GKH Gardening Expert
Answered on April 21, 2015

You forgot to upload the photo but let me give this my best shot. This could be a poplar borer infestation. I would review the following article and if you agree, follow one of the recommended control options:
https://www.colostate.edu/Dept/CoopExt/4dmg/Pests/popborer.htm

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