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
1 rating

Saturday - June 07, 2008

From: Austin, TX
Region: Southwest
Topic: Diseases and Disorders, Pests, Turf, Grasses or Grass-like
Title: Cause of yellowing buffalo grass (Bouteloua dactyloides)
Answered by: Nan Hampton

QUESTION:

We are getting large yellow areas in our buffalo grass lawn and think this is probably due to grub worms. Are grub worms the likely culprit and if so, what is the best way to get rid of them? We don't want to use chemicals but also don't want to lose the buffalo grass. Thanks!

ANSWER:

The City of Austin has an excellent "Earth-wise Guide to Lawn Problems" that presents several common lawn problems with descriptions, photographs, tests for causes, and solutions. You can test your buffalo grass lawn to determine if it is being affected by grubs. The recommended treatment (non-chemical) is the application of beneficial nematodes (Steinernema carpocapsae) that will attack and kill the grubs.

There is another possibility for yellowing buffalograss, according to an article (Buffalograss Lawns, by A. J. Koski from Colorado State University):

"Buffalograss is sometimes prone to iron chlorosis (yellowing) on high pH soils; supplemental applications of iron chelate (Fe EDDHA, sequestrene iron) will help to cure or prevent this problem."

The "Earth-wise Guide to Lawn Problems" lists this as a problem affecting St. Augustine and suggests preventive treatment (e.g., top dressing with 1/4-1/3" compost, not using fertilizers high in phosphorus, and aerating the lawn once a year). The Guide also suggests iron supplements for temporary relief.

 

More Diseases and Disorders Questions

Large oak with possible Laetiporus fungus
November 29, 2011 - We have a huge oak tree in front of our new house. After the first rain this fall a large fungal growth appeared in an old knothole of the tree and I would guess that it is Laetiporus. A neighborho...
view the full question and answer

Sap dripping from a lacey oaks in San Antonio
September 06, 2012 - I have a lacey oak tree, approximately 6 ft. tall that has been in the ground almost a year. The tree looks healthy but there is a small area on the trunk that looks and feels wet. The substance is s...
view the full question and answer

Esperanza freezing back in Highlands, TX
April 16, 2011 - I have an 3 yr. old Esperanza that froze the last two yrs. but grew back each spring. This spring after getting about 2 ft. the leaves at the bottom began turning brown at the edges and now seems to...
view the full question and answer

Drought-resistant and grub-resistant grass for Smithville TX
October 02, 2012 - I want a drought resistant grass for a sunny area that is also resistant to grubs. I have lots of grubs but want a healthy soil of good microbes. Any ideas? Zoysia, Buffalo? I noticed that Tech Turf r...
view the full question and answer

Flameleaf sumac problems
October 18, 2007 - I have three flameleaf sumacs, which were planted last December. One is doing very well, but two are losing their leaves. First, black spots appear on the leaves, then the leaves turn yellow and wilt,...
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