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
1 rating

Thursday - October 14, 2010

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Chinkapin oak (Quercus muehlenbergeii) weeping sap
Answered by: Nan Hampton

QUESTION:

Help, help! Our Chinkapin Oak is weeping sap along the trunk. There is no sign of damage. What can we do?

ANSWER:

Mr. Smarty Plants had a question of a similar nature several months ago and I consulted with Eric Beckers of the Texas Forest Service for his expert advice.  This is what he said:

"This sounds like wetwood, also known as slime flux, a bacterial disease that enters through a wound.  The pressure caused by the bacteria growing inside the tree usually produces a foaming weep that is very attractive to insects.  A healthy oak should be able to close the wound and shut down the bacterial ooze.  In the meantime, a periodic hosing down of the weep will cut down on insect activity and the pungent aroma."

It doesn't sound like a serious problem, but keep your eye on your Quercus muehlenbergii (Chinkapin oak).  If it begins to show obvious signs of stress, it might be a good time to call in a professional arborist.  Here is more information on wet wood or slime flux from the Univeristy of Illinois.

Thanks for stopping by to visit Mr. Smarty Plants at the Wildflower Center Plant Sale last week.


Quercus muehlenbergii


Quercus muehlenbergii

 

 

More Trees Questions

Transplanting Ilex x attenuata (Savannah holly)
July 31, 2014 - Is it hard to take a savannah holly out of my front yard? Do the roots grow down deep or are they more shallow? I can only take a 36-40 rootball circumference because of surrounding established shru...
view the full question and answer

What about planting a Colorado Blue Spruce in Rapid City, SD?
May 13, 2009 - What would be the best tree to plant in my small front yard that would be low maintenance? I live in Rapid City, SD, and we are landscaping our front yard. We were thinking of Colorado Blue Spruce b...
view the full question and answer

Problems with post oaks in Milam Co., TX
October 26, 2009 - I have an old ranch in Milam County, Texas on the Brazos River with several large, old Post Oaks. Recently a few of these grand old trees have lost large branches and two have died. One has died, poss...
view the full question and answer

Mexican oak and red oak not looking healthy
August 02, 2014 - I purchased a Mexican oak tree and I believe a red oak tree from your center about 1 year ago. Recently I've noticed that they don't look as healthy as they have been, and I just looked at the leave...
view the full question and answer

Tilling for grass under old live oak in San Antonio
April 15, 2012 - Hi, I have a 250+ year old Texas Live Oak. As usual, the lawn under the tree, after 18 years needs to be redone. MY QUESTION: to put down new sod the lawn company needs to till the soil about 4 t...
view the full question and answer

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