Ask Mr. Smarty Plants is a free service provided by the staff and volunteers at the Lady Bird Johnson Wildflower Center.
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.
From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders
Title: Grubworms in Austin Flower Bed
Answered by: Brigid & Larry Larson
Hi Ladies! Mr Smarty Plants is happy to hear from you!
Grubworms seems to be the topic of the moment around here. I was listening to the weekend gardening radio shows and I think each of the hosts had a question about burgeoning populations of grub worms.
My favorite answers that I heard were to dig them up and feed them to the chickens and/or use them for fish bait!
More seriously, Mr Smarty Plants has a good prior answer to this question. It can be found here. In that, they recommend the City of Austin publication "Earth-wise Guide to Lawn Problems". I also found two A&M references, one to their fieldguide website and another to an excellent publication. I also found two good discussions on the web, one from life123.com and one at gardeningknowhow.
Of course, we have a go-natural bent. All of these publications have treatment with beneficial nematodes as a preferred treatment. Follow the application directions given, but be aware that these living creatures need careful treatment. At the store they should be kept in a refrigerator to extend their effective lifetime. When you apply them, the flower bed should already be watered [1/4-1/2”] and the nematodes should be applied in the late afternoon to evening so they aren’t cooked by the sun before they get into your soil. Once there though they make life difficult for the grubworms! Two other recommended natural treatments are a bacteria called “Milky Spore Disease” and applying Neem oil.
Good Luck getting rid of those grub worms!
Problems in germination of Asclepias tuberosa in New York
August 31, 2006 - I am a member of the Native Plant Center at Westchester Community College and I need information on Acleptis tuberosa. I am in USDA zone 6.
Last year I planted fresh seeds purchased from Johnny's S...
view the full question and answer
Beneficial earthworms attacked by fire ants
August 04, 2006 - Is there a right way or a trick to releasing earthworms? I have a friend who has an abundance of earthworms in their soil so I took advantage of the situation. I released them in my freshly tilled gar...
view the full question and answer
Plants resistant to Verticillium wilt in Norco CA
September 24, 2009 - I'm looking for small trees, flowering shrubs & vines that are resistant to verticillium wilt. Fragrance would be a plus. Thank you so much!
view the full question and answer
Problems with giant coneflower in Richardson TX
June 05, 2010 - Dear Mr Smarty Plants-
I have had a giant coneflower in my garden for 2 years now. This year it came up like it always had..got lots of leaves and then withered..turned brown and died. It got plent...
view the full question and answer
Possible reasons for yellowing leaves in seedlings in Ohio
June 19, 2006 - I have a problem with my seedlings. They start yellowing of one leaf then die. When I remove the leaf another one starts. I have photos. I have two differant seedling plants and they are experiencing...
view the full question and answer
![]() |
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. |