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
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 Diseases and Disorders Questions

Rose canker in roses on cedar posts
May 24, 2007 - While visiting the wildflower Center I saw that some of the plants were growing on trellis' made of posts cut from cedar trees. I made a trellis for my climbing rose bush and where the stems touched...
view the full question and answer

Fungus on spineless prickly pear in Hico TX
January 03, 2010 - Is there anything I can do to save my spineless prickly pear planted 3 yrs ago in rock garden. Pods had grayish-white fungus? on the pods and I noticed a few green colored bugs on them. Bugs are gone-...
view the full question and answer

Wound in Monterey Oak from Austin
June 20, 2012 - I have a 10 year old Monterey Oak that has developed a wound that is secreting a white bubbly substance that has attracted all the bugs, like butterfly's , pill bugs, ants, and several others I don'...
view the full question and answer

Problems with October Glory maple tree in Evansville IN
June 10, 2010 - We have a 15 yr. old October Glory maple tree. 2 years ago we had a bad ice storm and this tree was covered with 1/2 to 3/4 " of ice. The tree resembled a chicken wishbone with its limbs touching ...
view the full question and answer

When is the best time to trim oak trees in Driftwood TX?
September 09, 2010 - When is the best time to trim oak trees?
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