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?


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

Sunday - May 28, 2006

From: Round Rock, TX
Region: Southwest
Topic: Pests, Trees
Title: Protection of Mountain Laurel from Pyralid or Genista moth caterpillars
Answered by: Joe Marcus and Nan Hampton


I have a Texas Mountain Laurel. Every year it is attacked by caterpillars. They form a bag for lack of a better word on the ends of the branches destroying the blooms for the following year. PLEASE HELP.


The caterpillars on your Mountain Laurel (Sophora secundiflora) are probably the larvae of the Pyralid or Genista moth (Uresiphita reversalis). You can pick off the caterpillars and destroy them if you can reach them and/or Bt (Bacillus thuringiensis) applied to the tree should also take care of them.


More Trees Questions

Is California fan palm found on Edwards Plateau from Austin
January 18, 2013 - Is the following Palm, Washingtonia filifera, found in the Texas Hill Country, specifically the Edwards Plateau or Balcones Canyonlands NWR.
view the full question and answer

Failure to thrive of desert willow in Wimberley TX
August 10, 2010 - I have a desert willow. It is always, whether I water it or leave it alone, yellow/ brown leaves, dark spots on the leaves, losing leaves. now it looks sad and not very healthy. Can you please tell m...
view the full question and answer

Over-trimming of native linden tree
November 06, 2008 - Dear Mr. Smarty Plants, My huge beautiful linden tree was just way over trimmed. It is planted near the house, so they cut most of the branches on that side all the way back to the trunk. I now have...
view the full question and answer

Apple trees for Dothan, AL
April 01, 2009 - I would like to plant early, mid and late season apple trees in my area Dothan Al.What types can I plant that will help pollinate each other? I have plenty of room and planting some crabapples trees w...
view the full question and answer

Life span of pin cherry (Prunus pensylvanica
May 12, 2015 - Do you have any data on the lifespan of pin cherry (Prunus pensylvanica) under urban conditions where is Not subject to seral succession (trees won't be permitted to overtake it)? On the other hand ...
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.
© 2015 Lady Bird Johnson Wildflower Center