En EspaŅol
Share

Ask Mr. Smarty Plants

Mr. Smarty Plants - Need help with a Coreopsis eating beetle in Shiro, TX

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
2 ratings

Wednesday - April 20, 2011

From: Shiro, TX
Region: Southwest
Topic: Pests, Wildflowers
Title: Need help with a Coreopsis eating beetle in Shiro, TX
Answered by: Jimmy Mills

QUESTION:

Mr.Smarty Plants,(Sorry, I kept messing up with my emails) Anyway, here goes: I usually have a beautiful meadow full of lanceleaf coreopsis blooming by now. Not this year. I found to my horror every single plant has been attacked before they could seed and devoured top to bottom by tiny dark iridescent beetles (about a quarter inch long) and thousands of their black nymphs marching like an army across the ground. Not only was every plant in the meadow reduced to sooty encrusted brown stalks, but any remaining single plants are being assaulted around my yard as well. It looks like I will lose them all. Do you have any idea as to the identity of these pests? I have been here many years and this is the first time this has happened. Thanks, Frustrated in Shiro.

ANSWER:

The Lanceleaf Coreopsis Coreopsis lanceolata (Lanceleaf coreopsis)  is a spectacular meadow flower and Mr. Smarty Plants can understand your frustration upon seeing them turned into a salad bar by a bunch of crunching beetles. In searching for insect pests of  Coreopsis, I found mention of three beetle species that like to eat this plant.

Phaedon desotonis

Calligrapha californica

Acalymma vitta

From the description you gave, Phaedon desotonis could be your culprit.

Another possibility is one of a group of species known collectively as Flea Beetles.

For help identifying your beetle and tips for eradicating it, I suggest that you contact the folks at the Grimes County office of Texas AgriLife Extension.

 

From the Image Gallery


Lanceleaf coreopsis
Coreopsis lanceolata

More Wildflowers Questions

Rules for picking wildflowers
May 30, 2008 - I've always heard that, if not in a park or posted area, it is ok to pick one wildflower for every 13 and therefore leave a dozen. Is this at all true?
view the full question and answer

Short wildflowers to interplant with grass in PA
July 05, 2011 - I live in NE PA and would like to grow short wildflowers throughout my yard mixed in with my grass. Is this possible? If so, what would be a good match for my zone? I will be mowing the grass once a w...
view the full question and answer

Eliminating Claytonia virginica in Varna IL
April 13, 2010 - How do I get rid of or control Claytonia virginica? It is starting to take over my lawn.
view the full question and answer

Tidying up Copper Canyon Daisies in San Antonio
March 30, 2010 - We have a small bed with 4 copper canyon daisies. We cut them back in the fall but have not pruned them during growing season; as a result they become a big tangle by September. Should they be pruned ...
view the full question and answer

Wildflower seeds coming up early
October 05, 2008 - I purchased several wildflower seeds packages. Everything I read about when to plant, suggest planting in September or October in my area. This is what I did. I planted only about 2 weeks ago. Som...
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