Rent Shop Volunteer Join

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Thursday - April 26, 2012

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Need help with a fungal disease in oak trees in Austin, TX
Answered by: Jimmy Mills

QUESTION:

Two adjacent oak trees in my yard are showing distinct symptoms of Sudden Oak Death. Most notably, the lowest ten feet of their trunks have several bleeding cankers with thick, tarry ooze and no accompanying smell. A quick bit of research online shows that SOD isn't a known issue here in Austin, or really in the central US as a whole. Who should I contact to get a diagnosis, and how do I protect my nearby trees from contracting whatever this is? Thanks for the advice!

ANSWER:


Since SOD is more of a California, Oregon disease, Mr. Smarty Plants is thinking that you may be dealing with Hypoxylon in your oak trees.

Check the pictures in these links to aggie-horticulture  and the Texas Forest Service to see if they resemble your trees.

For some expert advice about your oak trees, I suggest that you contact the Travis County Office of the Texas Forest Service, and/or the Travis County Office of Texas Agrilife Extension .

In the mean time, you might want to check out this web site to learn more about oak wilt, and  this aggie-horticulture site to learn more about live oak decline.


 

 

 

 

 

 

More Trees Questions

Why did the blossoms on my mountain laurels dry up before they flowered?
March 15, 2015 - Why did the blossoms on my mountain laurels dry up before they flowered?
view the full question and answer

Using cedar chips as mulch in Wimberley, TX
August 19, 2010 - In TX Hlll Country there is an abundance of wood chips, usually "cedar", which I have used as plant mulch. Since wood chips extract nitrogen to decay, do you consider chips a poor choice as plant m...
view the full question and answer

Placement of lemon cypress tree in Miami, FL
May 25, 2008 - Where is the best place to have a lemon cypress tree? indoors or out? Presently in south Miami climate, Scott's potting soil, clay pot, with good drainage.
view the full question and answer

Deer-resistant plants for under cedar and oak trees in Austin
June 22, 2010 - I have about 1.5 acres in southern Travis county. It's full of mature live oaks and cedar trees, and the soil is full of limestone. I've been gathering the limestone and using them to create raise...
view the full question and answer

Dying trees in San Marcos, Texas
September 24, 2011 - I live on 11 acres in San Marcos and cannot water at all during this drought. All of my oaks and mountain laurels are turning brown. Does this mean they are all dying? Will they come back in the sp...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.