En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Symmetrical Holes in Live Oak leaves.

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 - April 08, 2009

From: Austin, TX
Region: Southwest
Topic: Trees
Title: Symmetrical Holes in Live Oak leaves.
Answered by: Joe Marcus

QUESTION:

We have 2 young live oaks - quercus virginianum trees and their brand new leaves show two symmetrical rows of pin-sized holes punctured along the length of them. What could have caused this?

ANSWER:

A technical point: since you're in Austin, Texas, the species of live oak in your landscape is probably Quercus fusiformis (plateau oak).

The symmetrical holes in the leaves are made by insects just as the leaves are emerging and before they unfold.  Billbugs, plantbugs and caterpillars are all known to cause the type of damage you're seeing, though not necessarily on oaks.  If only a few leaves are involved, there's no need to worry.  If a large percentage of the leaves on your trees are damaged, we recommend contacting a certified arborist for positive identification and control of the pest.

 

More Trees Questions

Trees prohibited or regulated in Albuquerque
March 20, 2013 - Are there certain trees that not not allowed to be planted in Albuquerque, New Mexico because of city regulations?
view the full question and answer

Trees poisonous to horses from Landrum SC
April 15, 2012 - Please tell me if the following trees are poisonous to horses: hickory, beech, poplar, and redbud. Thank you very much.
view the full question and answer

Mexican sycamore for Briarcliff, TX
August 11, 2009 - I would like to plant a sycamore in my yard. I have searched and do not see info on the Mexican sycamore on this website. Is this not recommended in Central Texas for planting? I cannot find the Am...
view the full question and answer

Identification of tree in California
May 02, 2012 - A medium-size tree with shiny green leaves toward the bottom and garnet red ones toward the top of the tree. The leaves are narrow with saw-toothed edges. There are clustered small white flowers with ...
view the full question and answer

Tilling for grass under old live oak in San Antonio
April 15, 2012 - Hi, I have a 250+ year old Texas Live Oak. As usual, the lawn under the tree, after 18 years needs to be redone. MY QUESTION: to put down new sod the lawn company needs to till the soil about 4 t...
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