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

Thursday - June 11, 2009

From: Cedar Park, TX
Region: Southwest
Topic: Trees
Title: Curling lower leaves on live oak in Cedar Park, TX
Answered by: Barbara Medford

QUESTION:

I have noticed that one of my live oak tree, the leaves on the bottom of the tree have stared to curl. The leaves above that look fine. The trees are about 12 yrs old. Any suggestions?

ANSWER:

Since you live in either Northern Travis County or Williamson County, we are going to assume that you have a Quercus fusiformis (plateau oak), which is native to that area. Unfortunately, we cannot begin any discussion of problems with a live oak without talking about Oak Wilt. To give you more information about the appearance and symptoms of this disease, see this USDA website Identify, Prevent and Control Oak Wilt.  

There are two other possible reasons for the curling of the leaves, Oak Anthracnose and Oak Decline. Oak Anthracnose, while it causes curling and discoloration on lower leaves, seems to affect only white oaks, not live oaks. Ditto with Oak Decline, which is most often caused by insects or diseases that invade a tree already in trouble for some other reason.

It is almost impossible to diagnose a plant disease without seeing it. You would be advised to contact someone who is trained in the recognition of oak diseases and arrange to have the tree examined. Go to the Texas Oak Wilt Partnership webpage for some suggestions on how to get help. Another valuable source of information on tree diseases is the Texas A&M AgriLIFE Extension Office for Williamson County. There is always the possibility that some insect of which we are not aware is causing this type of symptom in your area. The website has contact information, and they possibly even can give you a source for diagnosis.

 

More Trees Questions

Redbud leaves turning yellow in mid-summer
July 13, 2012 - The leaves on our redbud trees are turning yellow. The yellow leaves are pale with no other spots and no dark veins. I don't know for sure which variety of redbud they are or how old they are (more t...
view the full question and answer

Search for Silver Magnolia from Coram NY
July 11, 2012 - Hi, 20+ years ago I purchased a small tree labeled Silver Magnolia from a catalog. It was a sapling about 8 inches high when I first received it but amazing! The bloom the first year was as big as my ...
view the full question and answer

Problems with Mexican Monterrey Oak in Killeen, TX
September 02, 2009 - I planted a Mexican/Monterrey White Oak in September of 2008. It was about 10 ft tall and about 1 1/4 inches in diameter at the bottom. I kept it watered over the winter and spring and of course, ve...
view the full question and answer

Distance for Escarpment oak to house from Lewisville TX
August 22, 2010 - I am planting an Escarpment Live Oak about 15' from my house. Thats as far away as I can plant it. Will this be a safe distance? How large will it be in 20 years?
view the full question and answer

What kind of native Junipers will grow in zone 7?
June 25, 2009 - What kinds of native Juniper will grow in zone 7 ? (besides Juniperus scopulorum and J.virginiana).
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