En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Secretions of fluid from crepe myrtles

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 - June 09, 2008

From: Temple, TX
Region: Southwest
Topic: Non-Natives, Pests, Trees
Title: Secretions of fluid from crepe myrtles
Answered by: Barbara Medford

QUESTION:

On my crepe myrtle tree I have dozens of 1/2-inch-long narrow bugs that seem to secrete tiny drops of fluid. They appear on the branches of the tree. Are these harmful to the tree? Do I need to do anything about this? I live in Temple, TX

ANSWER:

It is most likely the offending insects are aphids, as described in this article from the University of California Integrated Pest Management. They vary somewhat is size and appearance, but they all suck liquids out of the plant and secrete it again, usually causing a fungus called sooty mold to appear. They attack many different plants but they really love crape myrtles. Since this problem comes up about this time every year, see this previous answer with the information you are looking for.

 

More Pests Questions

Cat deterents
May 01, 2007 - I was wondering if there is such a plant that will deter cats from going in your gardens. I have a problem with them using my garden as a litter box, and had heard that there was a plant that the...
view the full question and answer

Problems with non-native parsley from Brooklyn NY
June 17, 2012 - Had beautiful flat leaf parsley plants recently turn yellow & die. Found black armadillo like bugs bored throughout the roots. Now they're spreading. How do I kill them without contaminating the pla...
view the full question and answer

Aphids in pecan tree from Austin
July 14, 2012 - Last year at this time (midsummer) everything under the canopy of our 60+ year old pecan tree was covered with a sticky substance--plants, lawn furniture, concrete pool deck..Since we had never seen t...
view the full question and answer

Plants that donkeys won't eat
August 08, 2012 - What plants/trees do donkeys NOT like? I live in Hawaii on the Big Island and they visit once a week in my yard. I like them but would prefer that they stay just outside. Unfortunately they like my...
view the full question and answer

Tree leaves being chewed in Austin
July 04, 2009 - We planted a Texas Redbud tree, and Monterey Oak (Mexican White Oak) in the front yard this spring and both have had their leaves eaten or chewed by something I cannot find on their leaves. At first I...
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