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

Problem with Live Oaks in Mesa AZ
March 26, 2013 - I have two Evergreen Live Oaks in central Arizona. One is flourishing and getting new spring leaves from top to bottom. Its trunk is rough, has large grooves, and the spots where I've pruned look li...
view the full question and answer

Control of invasive sandburs in Austin
May 05, 2014 - My attempts to control / eradicate Sanbur with pre-emergent corn gluten twice yeary for the last three years have been unsuccessful. My post emergent pulling weeds for 15 years has also been unsucces...
view the full question and answer

Herbicide on Habiturf from Austin
May 31, 2014 - Can you recommend an herbicide that is safe to use on a Habiturf lawn? I followed the directions to put in a new Habiturf lawn about a month ago. The grass seedlings are doing well in places, but ...
view the full question and answer

Petals not developing on blackeyed susans from Nashville TN
July 05, 2011 - I have an established "patch" of black eyes susans. This year, the leaves are beautiful, the centers black..but the petals are practically non existent. They didn't seem to develop correctly. Any...
view the full question and answer

Mosquito problem from Mesa AZ
April 07, 2014 - We have a mosquito problem in our backyard, I think they're grass Mosquitos. I wanted to get lemongrass for a deterrent but both nurseries were out so I opted for rosemary. They're ALL OVER the rose...
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 | STAFF
© 2015 Lady Bird Johnson Wildflower Center