En EspaŅol

Q. Who is Mr. Smarty Plants?

A: There are those who suspect Wildflower Center volunteers are the culpable and capable culprits. Yet, others think staff members play some, albeit small, role. You can torture us with your plant questions, but we will never reveal the Green Guru's secret identity.

Help us grow by giving to the Plant Database Fund or by becoming a member

Did you know you can access the Native Plant Information Network with your web-enabled smartphone?

Share

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.

Search Smarty Plants
    
 
See a list of all Smarty Plants questions
Can't find the answer in our existing FAQs, submit a question to Mr. Smarty Plants.
Need help with plant identification, visit the plant identification page.
 
rate this answer
Not Yet Rated

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.

 

More Diseases and Disorders Questions

How to correct Anacacho leaves that are turning brown and curling in Driftwood, TX?
May 11, 2012 - Anacacho lunarioides leaves are turning brown and curling,how do I correct?
view the full question and answer

Black Sooty Mold on Bay Tree
February 25, 2013 - I have a large bay tree and all the leaves are covered with a black mold-like substance on the top part of the leaf. Under each leaf are some black/brown spots. I have washed the leaves with soap and ...
view the full question and answer

Black rot at center of Agave from Clovis CA
May 12, 2013 - We have some beautiful variegated "Green & Cream" Agave plants in our cactus garden. One in particular has done quite well for several years and is the largest, about 18" tall & across, it has neve...
view the full question and answer

Mexican oak and red oak not looking healthy
August 02, 2014 - I purchased a Mexican oak tree and I believe a red oak tree from your center about 1 year ago. Recently I've noticed that they don't look as healthy as they have been, and I just looked at the leave...
view the full question and answer

Orange patches circling cedar branches
May 15, 2010 - We have dry rusty orange patches that circle several of our Cedar branches. There are a few orange blobs on different limbs, but they do not look like the pictures of Cedar Rust (no horns). The foli...
view the full question and answer

Smarty Plants's Facebook profile Support the Wildflower Center by Donating Online or Becoming a Member today.

Mr. Smarty Plants wants you to be his Facebook friend. Click the Facebook icon to add yourself to Mr. Smarty Plants list of friends.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2015 Lady Bird Johnson Wildflower Center