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

Sunday - June 08, 2014

From: round rock, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Live oaks exhibiting white foam spots from Round Rock, TX
Answered by: Barbara Medford

QUESTION:

We have several native very large Live Oak in our backyard, and this summer we have noticed white foam spots on the branches. We live in Round Rock next to the Williamson County Park. The spots look like sores on the tree, and the white foam is very sticky, and is spreading to other trees. The leaves on the tree still appear green and healthy. The bark, however, appears to be shedding where these foamy spots are. The spots exist from about 6 ft to 50 ft up the tree, each spot being about 1cm. I have some photos I would love to attach..

ANSWER:

We are sorry, we are no longer able to accept photographs. We will search on some other oak diseases with which we are familiar, and see if we can match your symptoms up to some known tree disease. Please read this article from the Texas A&M AgriLife Cooperative Extension on Major Oak Diseases and their Control. Then, we urge you to contact a local, licensed arborist and ask them for a diagnosis and suggested treatment. DO NOT bring someone in who wants payment in advance and who insists they have a spray that will kill anything. It probably would. We cannot possibly make a diagnosis at a distance and, as volunteers, we don't make house calls. In Texas large trees are treasures, and large live oaks trees are golden treasures so be prepared to do what you have to do. It will be worth it in the long run.

 

More Diseases and Disorders Questions

Problems with Live Oak in Boerne TX
April 24, 2011 - I had my large Live Oak trimmed last year. This spring there seems to be a problem with leaf growth. Most leaves are small in nature and appear to have been attacked possibly by bugs. Many of the bran...
view the full question and answer

Agarita and Mexican Buckeye not flowering or fruiting.
December 11, 2012 - The Greenbelt behind our home has a ton of agarita and Mexican buckeye, but they never bloom or berry. The pigeon berry is very happily doing both all year. Any suggestions for helping the agerita a...
view the full question and answer

Lantanas failing to bloom, turning brown
October 06, 2007 - The lantana in my front yard does not bloom, is not overwatered but does get watered, leaves turned brown and plants generally have not grown. The lantana in the rest of the yard are in bloom and lo...
view the full question and answer

Aphid infestation from hackberries in Austin
August 22, 2010 - I've got 5 hackberry trees in my yard and they are all heavily infested with woolly aphids! I wouldn't usually mind, but the aphids are now all over my newly planted native plants. I've read up on...
view the full question and answer

Full Sun, Wind-Tolerant Shrubs and Vines for Steep MN Hillside
June 26, 2013 - My neighbor and I share a very steep, large (in total almost 200 ft. wide) west-facing hillside in Excelsior, MN on Lake Minnetonka. We both have a flat grass area at the bottom so the hillside does n...
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