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?


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

Wednesday - July 31, 2013

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Problems with red oak from Austin
Answered by: Barbara Medford


I planted 3 Texas Red Oaks several years ago. The trees are in a tight cluster just a few feet apart. At the end of last summer, one of them began to develop brown spots and yellowed leaves. This summer, that tree looks very diseased, and the next tree has a couple branches that look similar. The third tree seems to be largely unaffected. Could this be oak wilt? What should I do about this? Thanks for your help.


There are several oaks with the common name "red oak" but Quercus buckleyi (Texas red oak) is shown on this USDA Plant Profile Map as growing naturally in Travis County.

Here is a recent Mr. Smarty Plants answer from North Central Texas which pretty much answers your questions about red oak problems. Please follow all the links in that answer for more information.


From the Image Gallery

Texas red oak
Quercus buckleyi

Texas red oak
Quercus buckleyi

More Trees Questions

Southern Magnolia Damaged by Deer
April 16, 2015 - I have a young Southern Magnolia (about 6 feet tall) that was damaged by deer on the main trunk. The bottom 2 feet looks okay, but where they damaged it and tore branches off, and above that, the leav...
view the full question and answer

Roots in mulch around Live Oak in Austin
March 10, 2011 - I have a 20 yr old Live Oak that has about 6-8 inches of mulch buildup around the base (I had landscaped around it). I went to break up the mulch to remove it from the base of the tree, but found it ...
view the full question and answer

Are fuzzy oak leaf galls harmful to post oak trees?
October 19, 2012 - Are the fuzzy balls on the undersides of our post oak trees harmful?
view the full question and answer

Non-native Japanese maple for East Northport NY
August 20, 2013 - I live in NY and I am looking to plant a Japanese maple in front of my house. It would be in front of a window so I'm thinking should I get a dwarf? Or a semi dwarf? I know I want a red color but un...
view the full question and answer

Need to find a place to buy Western Soapberry in Paris, TX.
May 05, 2012 - Where is the closest place to purchase a Western Soapberry tree?
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
© 2015 Lady Bird Johnson Wildflower Center