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
1 rating

Tuesday - November 02, 2010

From: utopia, TX
Region: Southwest
Topic: Trees
Title: Why are branches falling from my pecan trees?
Answered by: Jimmy Mills

QUESTION:

I have tree branches falling that appear to have been cut, not broken,off the tree. Seen most on the pecan trees but had a young red bud die with what appears a clean cut of the trunk approx. 2 feet off the ground. Is this a disease or insect? Can I do something to prevent it?

ANSWER:

From your description, it sounds like your trees have some unwanted guests; twig girdlers. These are a type  of wood boring longhorn beetles that girdle twigs and branches and cause them to fall from the tree. Common hosts of the twig girdler include persimmon, pecan, elm, hickory, oak, honeylocust, hackberry, poplar, linden, redbud, basswood, dogwood and various fruit trees.

This Bulletin from the Texas Agricultural Extension Service describes the biology of the girdlers.

This field guide on Twig Girdlers from Texas AgriLife Extension should also be useful.

This link from Forestry Images illustrates the kind of damage the beetles cause.

Have you examined the ends of the fallen branches? There should be some tell-tale signs if the beetles are the cause.

My suggestion is that you get in touch with the Uvalde County Office of Texas AgriLife Extension, and show them the branches. They should be able to help you with this problem by identifying the culprit and suggesting treatment.

 

More Trees Questions

Why do conifers kill Texas hummingbird sage from Gray GA
April 15, 2014 - Why do conifers kill Texas hummingbird sage?
view the full question and answer

Specifications for a property in Corning CA
March 29, 2012 - Drought resistant, deer resistant, low growing (ground cover), and shade tolerant request: I am looking for a variety of species that not only fit the above preferences, but also a few other things. ...
view the full question and answer

Root suckers growing from base of oak in California
November 24, 2008 - I planted four trees labeled by the nursery when purchased as "Louisiana Oaks" approximately 20 yrs ago in my front yard. All trees are growing well but one of the four has a progressing mass of ro...
view the full question and answer

Cottonwood seed clogging air conditioner in Austin
June 06, 2010 - My husband and I recently moved into a rental house that has a very tall cottonwood tree in the backyard. It has been shedding its seeds all over our yard since the beginning of May and seems to still...
view the full question and answer

Killing regrowing shoots of a downed hackberry tree
June 28, 2013 - Hackberry plants won't die. You and others have suggested to cut the suckers or saplings to get rid of them. Over the years I have continued to cut the same saplings and the only thing I have now ar...
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