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

Wednesday - September 07, 2011

From: San Antonio, TX
Region: Southwest
Topic: Non-Natives, Diseases and Disorders, Trees
Title: Sap oozing from non-native Chinese pistache in San Antonio
Answered by: Barbara Medford

QUESTION:

I live in San Antonio, and my chinese pistache is exuding copious amounts of a sticky sap from old trim sites and from the trunk itself. The tree is about 12 years old and has been healthy up until now. I'm sure the drought has weakened it some. Please tell me what could be causing this oozing. Bugs or disease?

ANSWER:

Pistacia chinensis, Chinese Pistache is native to (where else) central and western China. The Lady Bird Johnson Wildflower Center is devoted to the growth and care of plants native not only to North America but to the area in which they grow natively, so this tree is out of our realm of expertise. However, we do consider it invasive, and would prefer it not be planted nor propagated. We have answered a number of questions about this tree, and are going to give you links to those answers, in hopes you will find the information you need.

Austin, TX

Texas Invasives.org on Pistacia chinensis

Kerrville, TX

Plant files from Dave's Garden: Read especially the 5 negative comments

From University of California Integrated Pest Management Pests and Diseases of Pistachia Chinensis.

Finally, we suggest you contact the Texas A&M AgriLIFE Extension Office for Bexar County.

 

 

 

More Trees Questions

Recently planted Chinquapin Oak with browning leaves in Marlin, TX.
July 31, 2012 - We planted a Chinquapin Oak this in March 2012. As of July 21, 2012, the tips of the leaves on the lower branches are turning brown. We cannot see any insects. There does not appear to be any fungu...
view the full question and answer

Mediterranean Pines indigenous to Verde Valley AZ
January 01, 2012 - Are the tall, thin Mediterranean/Pencil Pines growing in the Verde Valley in Arizona indigenous to the area? They are so plentiful, but are not identified as an indigenous evergreen. If not, how did...
view the full question and answer

Holding an Acer rubrum in a container for two years
October 10, 2008 - Dear Mr. Smarty Plants, I am thinking about ordering a Red Maple tree that is cultivated from Mount Vernon. I appreciate the historic nature of such a tree. The tree will be shipped to me and is ...
view the full question and answer

Lifespan and pruning of cedar elm in San Antonio
October 03, 2009 - How long do cedar elm trees live? How can you estimate the age of one, or tell if it is nearing the end of its normal lifespan? Do you have any recommendations for selecting someone to prune it proper...
view the full question and answer

Premature leaf drop on Red Maple in Kentucky
June 25, 2008 - I have a ten foot Red Maple tree that has been set out for 4 years. Its leaves have slowly turned colors until it currently looks like fall. The leaves are not falling off nor is there yet any s...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center