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 Diseases and Disorders Questions

Fungus Spots on Native Bush Honeysuckle
December 03, 2010 - My native bush honeysuckle plants that I have along my back fence have leaves that are turning yellow with spots. It appears to be a type of fungus, but not powdery mildew. Any suggestions as to what ...
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

Problems with Thuja in Oakland CA
December 16, 2010 - I have a Thuja hedge about 100' long. Part of this hedge and a well established Rhododendron have been diagnosed with Armillaria mellea that is spreading. I see the bunches of mushrooms growing eve...
view the full question and answer

American Beech with Brown Leaves
August 06, 2015 - I have a North American beech tree in Oregon. Its leaves started out with big brown spots on the leaves and is pretty much turning all the leaves on the tree brown. What could be causing this and wha...
view the full question and answer

Diseased Mexican plum tree in Austin
September 27, 2009 - I have a grove of 5 year old Mexican plum trees one of which is oozing sap from its trunk and a branch appears to have died. Is there anything that I can do to help the tree besides removing the dead...
view the full question and answer

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