Host an Event Volunteer Join Tickets

Support the plant database you love!

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

Please forgive us, but Mr. Smarty Plants has been overwhelmed by a flood of mail and must take a break for awhile to catch up. We hope to be accepting new questions again soon. Thank you!

Need help with plant identification, visit the plant identification page.

 
rate this answer
Not Yet Rated

Monday - December 08, 2014

From: Houston, TX
Region: Southwest
Topic: Pests
Title: Problem with leaf cutting bees in Houston, TX
Answered by: Jimmy Mills

QUESTION:

I have four Arapaho crepe myrtle trees in my backyard and two have leaves, especially the young leaves, being eaten by something. I do not see ants of beetles on the leaves and have not seen any bees although the leaves look like the damage done by the leaf cutting bees. I used the BAYER ADVANCED 12 Month Tree & Shrub Protect & Feed Gal Concentrate Liquid when I planted them early this summer and that was extremely effective in ridding the leaves of aphids. However, the leaves are still being eaten almost as fast as the tree grows them. Please tell me any suggestions you may have. Thank you.

ANSWER:

Mr. Smarty Plants has found several links about leaf cutting bees that he will share with you. The damage that they do to the leaves is pretty distinctive, so your diagnosis is probably correct. There are pictures in some of the links.

 http://buginfo.com/article.cfm?id=103

 http://www.ext.colostate.edu/pubs/insect/05576.html

 http://aggie-horticulture.tamu.edu/archives/parsons/misc/leafcutterbees.html

http://www.beautifulwildlifegarden.com/leafcutter-bees.html

http://www.beautifulwildlifegarden.com/bee-ready.html

The gist of the articles is that there are few effective insecticides against the bees, and since they are pollinators, killing them is ill advised. The one method of control that was mentioned was using netting to keep the bees away from the plant.

 

More Pests Questions

Insects on non-native euonymus in Lake Orion MI
June 23, 2010 - I had a greenlane euonymus that had a few flies last year but was infested with thousands this year. We ripped it out, it was an 8 year old plant. Do you know why they are attracted to it now?
view the full question and answer

Control of ball moss in oak trees
March 23, 2007 - I live in San Marcos, Texas and I have a two acre lot with lots of oak trees. Most of these trees have so much ballmoss attached to them that the leaves and branches are not visible anymore. Is ther...
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

Carolina buckthorn and Neem Oil Spray Damage
April 27, 2015 - It's April, I have a Carolina buckthorn that seemed to be doing well, about 8 feet tall, about 2 years old in part shade. It was putting out new leaves about a month ago and seemed to have infestati...
view the full question and answer

Spots on calycanthus petals from Buckley WA
June 20, 2013 - Petals on calycanthus develop black spots the turn into holes. Problem appears shortly after buds open. Occurs every year. Foliage is healthy. Plant growing well and doubles or triples size every ...
view the full question and answer

Support the Wildflower Center by Donating Online or Becoming a Member today.