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
Not Yet Rated

Thursday - November 11, 2004

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Bacterial wetwood disease in ash tree
Answered by: Nan Hampton

QUESTION:

I have an Ash tree in my front yard. It's about 25 - 30 years old. About 2 months ago, it began to ooze sap from a point where a limb had been pruned, I'd say, about 15 - 20 years ago. So this cut was healed and ok. So the sap is running, it's clear and bubbly. It is surrounded by moths, bees and flies!! When I come home from work, it is hissing. Really, my tree hisses. My son figures it's posessed. My question to you is: what's happening here?!?!?! Is this normal? Any advice is welcome.

ANSWER:

A possessed tree, eh? Just in time for Halloween!
I can't be sure but it sounds as if your tree has "bacterial wetwood" disease. This sounds dire, but actually it is not particularly serious. The University of Illinois Extension gives a description of the disease and recommendations for treatment. Colorado State University also has web page information about wetwood disease. In neither of these articles do they mention that the trees "hiss" but they do mention gases produced by the disease that certainly could produce a hissing noise escaping from the tree.
 

More Trees Questions

Allelopathy in Sassafras albidum
January 11, 2012 - Sassafras albidum description says "Sassafras is allelopathic and can discourage the growth of certain other plants within its root zone." My question is: WHICH plants are susce...
view the full question and answer

Removing Texas cedar Juniperus ashei from Blanco River banks
February 26, 2014 - Dear Mr. Smarty Plants, Should cedar trees be removed from our Blanco River banks to prevent them from sucking too much of our precious water before it makes it into the river system? If so, what s...
view the full question and answer

Evergreen hedge for NY
February 26, 2012 - I am looking for a native evergreen shrub that could be used as a hedge or privacy screen on the Rockaway peninsula in Queens county. It is a beach community with sand soil ( except where it has been...
view the full question and answer

Identificaation of different cultivars ofPrunus caroliniana
June 14, 2007 - How can you tell if you have a Carolina Cherry laurel or Carolina cherry laurel "compacta," or a Cherry Laurel-English? I have a line of four cherry laurels and one in the middle recently died an...
view the full question and answer

Live Oak Suckers
March 21, 2011 - Hello, my neighbor cleared away their St. Augustine grass for mulch and plantings. Under a huge, beautiful Live Oak tree they placed a wide bed of medium gravel, almost out to the drip line. It look...
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