En Espa—ol

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
2 ratings

Wednesday - July 22, 2009

From: Cedar Park, TX
Region: Southwest
Topic: Trees
Title: Brown spots on live oak leaves in Cedar Park, TX.
Answered by: Joe Marcus

QUESTION:

I have a live oak that was planted 4 years ago. It had several brown spots last summer, but recovered over the winter. Now it has lots of brown leaves and looks very sad. What is the best way to help it get better? Thank you!

ANSWER:

Diagnosing plant diseases or disorders via email is tricky business. 

The most likely cause of the brown leaves on your live oak is water stress -- either too little or too much.  Since Central Texas is now in the midst of a two-year drought and an exceptionally hot summer, we going to say the most likely cause is too little water.  However, overwatering can be just as deadly.

Disease is a possibility.  Oak Wilt disease is common in your area.  However, we would not expect to see it just now since the fungus is most active in the spring and fall.

The best way to find out for sure what is wrong with your tree and to learn what to do about it is to employ a certified arborist.  Another alternative is to consult with your county's Cooperative Extension Service agent.

 

More Trees Questions

Shade tree for Southern California
November 14, 2013 - I had to cut down my huge ficus tree for several reasons, however it provided lots of shade, that we miss. Can you help me find a good shade tree with non-invasive roots that is good for growing and p...
view the full question and answer

Mountain Laurel growing in East Texas
April 24, 2008 - I found a plant that looks like a Texas Mountain Laurel growing wild on a fenceline in east texas, near Canton. It is a small shrub/tree and has flowers like wisteria. It has "hairy" stems, they ar...
view the full question and answer

Suckers from Oak Tree Roots in Austin
May 17, 2013 - Hi. I am a home owner in Austin TX with several live oak trees. We love them and want to keep them healthy. We have a nice landscape in the back yard and Iím wondering if you can answer a quest...
view the full question and answer

Sticky white substance from Arizona Ash tree in Arlington TX
June 11, 2009 - Our Arizona Ash Tree is producing a white substance that floats down from the tree almost like a snowflake the size of a bb. You cannot see it on the tree/leaves. When it lands on the car, it takes th...
view the full question and answer

Place to purchase Texas Madrone tree
May 15, 2008 - Where can I purchase a Texas Madrone Tree to plant in my yard?
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
© 2014 Lady Bird Johnson Wildflower Center