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
1 rating

Tuesday - December 08, 2009

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Live oak trees dropping leaves in clumps
Answered by: Jackie OKeefe and Nan Hampton

QUESTION:

We have several large mature Live Oak trees in our Austin TX neighborhood. Now that the rains have come back and the acorns are falling, two of our four trees are also dropping large amounts of leaves in clumps connected to small twigs. I do not see this happening in our neighbors yards. At first I attributed it to stress, but now I'm a bit worried. Both are near the house built 30 years ago. The oak trees are clear of the house.

ANSWER:

The good news is that what you describe doesn't sound like oak wilt, a serious problem with live oak trees in the Austin area.  You can read about the characteristics of oak wilt from the Texas Oak Wilt Information Partnership. We assume that you've ruled out squirrels.  Squirrels do sometimes knock off clumps of leaves in their enthusiasm for collecting acorns. Your trees may be showing the stress from the recent drought and sudden weather change or it is possible that they are being attacked by Oncideres cingulata (twig girdler). Here is an image of the insect. In actuality, we can't really diagnose your problem sight unseen.  If your trees are still losing large numbers of leafy clumps, you may want to ask an arborist to take a look at your trees. Here are several links to sites that can help find a qualified arborist in the Austin area:

Evaluating and Choosing an Arborist  

Web Search Tool to find an Arborist 

Site to Learn About and Find a Consulting Arborist

 

More Trees Questions

Replacing Drought-Stricken Cedars
January 16, 2012 - Hello, I live in Williamson County on a couple acres. We have several dead cedars as a result of drought; we're reluctant to cut them down because many of them provide a friendly barrier between us...
view the full question and answer

Trouble with Redbud in Illinois
March 13, 2010 - I have a red bud bush, we live in northern Illinois, it is shedding its bark. Is this normal or is the bush dying?
view the full question and answer

Flowers under pine trees from Elkhart Indiana
May 02, 2013 - I have a number of pine trees at the back of my lot and would like to plant flowers under the tree. What can I plant?
view the full question and answer

Elimination of live oak adventitious sprouts in San Angelo TX
July 28, 2009 - Live oak sprouts. The main tree was removed several years ago and we still have the sprouts coming up in the yard. How do we stop this?
view the full question and answer

Trees to replace some non-native invasives in Deltona FL
February 02, 2012 - I would like to replace 3 large ChinaBerry & 3 large Chinese Tallow trees in my good sized back yard with some local wildlife friendly trees native to the Deltona area(first area.) What do you recomme...
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