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 - April 30, 2012

From: Bandera, TX
Region: Southwest
Topic: Pests, Shrubs
Title: Mountain laurels with insect problems in Bandera, TX..
Answered by: Jimmy Mills

QUESTION:

I have 3 mountain laurels about 8 yrs old. Suddenly about 3 yrs ago worms started decimating them. This yr I got dipel dust which works great but only for two weeks. I now have small red flies and tents on the plants. I don't want to dig them out and burn them; what next. I could see them arrive [worms ] from the next property by strings. No one lives next door and it has been derelect for yrs. Help!~!!

ANSWER:

Mountain Laurel Sophora secundiflora (Texas mountain laurel) is a beautiful hill country native , and should be right at home in Bandera County. It is frequently touted as not having serious disease and pest problems. Well you probably feel that isn’t true.

The worms that you mention are probably the larval form of the Genista moth, and are sometimes called Sophora worms. This web site describes their life cycle and gives tips for getting rid of them. This guide from the Desert Botanical Garden ( Phoenix, AZ ) also has helpful information.

For the other conditions that you describe, it would be more helpful to have someone who can actually look at your trees and make an assessment. You should be able to find such a person at the Bandera County Office of Texas AgriLife Extension.

 

 

From the Image Gallery


Texas mountain laurel
Sophora secundiflora

More Shrubs Questions

Hummingbird Bushes for Broken Arrow OK
August 27, 2014 - I am looking for bushes that attract hummingbirds. I live in Broken Arrow, OK. Can you recommend some?
view the full question and answer

Privacy screen shrubs for Butler PA
August 09, 2013 - Here is what I want in a bush: native to Western Pa.(Southern Butler County), appropriate for a horse pasture,fast growing, not too aggressive (I will mow around it regularly and can prune occasionall...
view the full question and answer

Evergreen flowering shrub for San Antonio, TX
May 20, 2013 - Need a suggestion for an evergreen flowering bush, 3 ft tall for shady area by front door. Have gardenia bushes there now - did well until we had a hard freeze and have struggled ever since. Ideas ple...
view the full question and answer

Yellow-blossomed Shrub that Occurs in Arizona and Texas
May 08, 2012 - What is the name of the large shrubs you will see in Arizona with the bright yellow blossoms. They grow wild everywhere, and I also see them in the town. Could you please tell me the name of them, s...
view the full question and answer

Could lilacs grow in Georgia?
April 27, 2010 - Hi Mr Smarty Pants, First off, I want to commend you on your promotion of native plants. I am passionately anti-invasive plants (in fact, it was the subject of my master's thesis). That being said...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.
E-NEWSLETTER | BECOME A MEMBER | DONATE NOW | MEDIA | SITEMAP | STAFF
© 2016 Lady Bird Johnson Wildflower Center