Native Plants
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Ask Mr. Smarty Plants
Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
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Monday - May 13, 2013
From: Manchaca, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Grey Goo Coming from red Oak in Manchaca TX
Answered by: Mike Tomme
QUESTION:
I have a large Red Oak in my yard that appears to be weeping some sort of grey goo from parts of the trunk. What is this goo and do I need to treat it and if so how? I'm happy to come by the Wildflower center with a photo if someone there could help me.ANSWER:
Grey goo coming from anything is never a good sign. You need to get a certified arborist to look at your tree and it needs to be done as soon as possible. A professional can assess your tree and determine if it is threatened, if it can be cured and if other trees in the area are in danger.
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