En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Clear pungent, liquid oozing from oak tree

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

Monday - June 28, 2010

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Trees
Title: Clear pungent, liquid oozing from oak tree
Answered by: Nan Hampton and Eric Beckers

QUESTION:

I have a large oak that over the last few days has been oozing a pungent, non sticky, clear substance from one specific site (no damage) about the size of a dime. It's attracting quite a few gnats, moths and butterflies. Should I be concerned?

ANSWER:

Our expert from the Texas Forest Service, Eric Beckers, says that 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.  Here is more information on wet wood or slime flux from the Univeristy of Illinois

 

 

More Trees Questions

Replacement for shade grass in El Paso TX
April 05, 2013 - We currently have a Honey Mesquite tree with thinning bermuda grass underneath in our front yard. I suspect that the filtered shade is killing the bermuda. I was thinking of planting Buffalo Grass, or...
view the full question and answer

Perennial Suggestions for Under Ash Trees in Minnesota
June 12, 2013 - With our house we have inherited 2 ash trees in our front yard with a large amount landscaping underneath. I'm replacing the landscaping but there are tree roots at the surface preventing me from bei...
view the full question and answer

Pruning technique for Anacacho Orchid from Austin
May 18, 2011 - I have an Anacacho Orchid tree that is about 8 ft tall and still young. It is doing quite well. I have never pruned it, but lately I have been considering it as some of the top branches are starting t...
view the full question and answer

Viability of Texas Mountain Laurel in Florida
March 12, 2008 - Dear Mr. Smarty Plants While visiting Pinnacle Peak in Scottsdale we saw a beautiful Texas Mountain Laurel tree. What are the chances of this surviving in the Ft. Myers, Florida area. Either in t...
view the full question and answer

Root suckers growing from base of oak in California
November 24, 2008 - I planted four trees labeled by the nursery when purchased as "Louisiana Oaks" approximately 20 yrs ago in my front yard. All trees are growing well but one of the four has a progressing mass of ro...
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
© 2014 Lady Bird Johnson Wildflower Center