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

Monday - August 20, 2012

From: Sinton, TX
Region: Southwest
Topic: Pests, Trees
Title: Wasps on live oaks from Sinton TX
Answered by: Barbara Medford

QUESTION:

Wasps on my live oak trees. What is attracting them? Does this hurt the tree?

ANSWER:

Believe it or not, wasps are considered beneficial insects. Anyone who has ever blundered into a wasp nest and paid for the mistake is not going to believe that. No doubt what you have in your live oaks are aphids. Here are a couple of previous questions about them; they have been a terrific problem in Texas this summer.

Lakeway TX August 14, 2012

Austin, July 22, 2012

Now, read these two university websites on the aphid problem. Remember, the aphids can damage your tree, and insecticides will kill beneficials like wasps and ladybugs and leave aphid eggs safe to hatch again.

Battleground in your Backyard Washington State University scroll down to page 6, Parasitoids

Colorado State University Extension Aphids on Shade Trees

 

More Trees Questions

Surface tree roots hurting grass in Houston
March 21, 2013 - We have 2 mature Arizona Ash trees in our yard (30-40'). One of them is in a sunnier location and has developed an extensive network of surface roots (up to 1 to 1 1/2" Dia.) between the tree and th...
view the full question and answer

Replacement for trees destroyed by Hurricane Ike
March 28, 2009 - We had a 23 year old elm tree in our front yard that was uprooted from Hurricane Ike (about 50 feet tall)..can you tell us what the replacement costs for that would be? Also we had a 20 foot live oak ...
view the full question and answer

Looking for a native mulberry tree for Woodlands, TX.
November 22, 2010 - Does a truly "native" mulberry tree exist and where can one get such a tree. So many I've seen are "white" or "chinese" and were imported for a never-to-happen silk industry. I'd like to pur...
view the full question and answer

Problems with Texas Mountain Laurel in Dallas
May 04, 2010 - I have a Texas Mountain Laurel that is about 3 years old. When I bought it 2 summers ago, it was about a foot high. Now it is over 6 feet. It seems to have grown so fast that the branches can't ke...
view the full question and answer

Problems with red oak from Austin
July 31, 2013 - I planted 3 Texas Red Oaks several years ago. The trees are in a tight cluster just a few feet apart. At the end of last summer, one of them began to develop brown spots and yellowed leaves. This summ...
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