En EspaŅol

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
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

Saturday - May 10, 2008

From: Krum, TX
Region: Southwest
Topic: Pests
Title: Identification of red and black insects on Yucca
Answered by: Nan Hampton

QUESTION:

I have little red and black insects on my soft leaf yucca and I don't know what they are or how to get rid of them. They make the leaves rusty looking. Do you have any idea what they are or how I can get rid of them (preferably in an organic way).

ANSWER:

Mr. Smarty Plants thinks the bugs on your Yucca arkansana (softleaf or Arkansas yucca) are probably Halticotoma valida (yucca plant bug). Ohio State University in their Plant Bugs on Perennials and Landscape Shrubs has suggestions for various ways to control these pests, including eco-friendly ways. The Connecticut Agricultural Experiement Station also has a list of insects (including H. valida) which affect Yucca spp. and means to control them, but their control methods are heavy on chemicals.

 

From the Image Gallery


Arkansas yucca
Yucca arkansana

More Pests Questions

Fungus Spots on Native Bush Honeysuckle
December 03, 2010 - My native bush honeysuckle plants that I have along my back fence have leaves that are turning yellow with spots. It appears to be a type of fungus, but not powdery mildew. Any suggestions as to what ...
view the full question and answer

Need bug repelling plants in Arlington, VA
February 08, 2010 - What kind of plants are best bug repellents, and need little or no maintenance. I'm a city girl and don't like bugs (spiders)
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

Possible maple scale on non-native mophead hydrangeas from Newport RI
August 07, 2013 - I have a mophead hydrangea that has small white cottony tufts under the leaves and on the stems. I believe this is maple scale. Is there a home remedy I can use to rid this disease?
view the full question and answer

Growing Giant Pumpkins in Georgia
April 15, 2013 - I have tried to grow giant pumpkins in the Atlanta, GA area. Each year I lose several strong plants to vine borers. I have tried tin foil wrapped around the stems, and I even painted the stems with Se...
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