Can You Use Atrazine on Zoysia Grass?

Can You Use Atrazine on Zoysia Grass?

In the latest installment of ‘Ask Alex’, I will be answering a newsletter subscriber question about using Atrazine on Zoysia. If you have lawn care questions of your own, please consider subscribing to our ‘Crabgrass Busters Newsletter’ where you will get up-to-date tips and tricks for lawn care. Also, feel free to ask your question below in the comments section.

From Stephen K.

“HI Alex, I have a zoysia lawn in Northern Georgia and last season I started to get some tall fescue growing in different areas of the lawn thanks to my neighbor’s overseeding. I heard that using Atrazine could be a good product to use as I don’t want to hurt the Zoysia but still get rid of the fescue. Should I use Atrazine or something else?”


Hi Stephen, thanks for writing in. I don’t recommend you use Atrazine or a product that has Atrazine as the active ingredient since it will not be labeled as safe to use on Zoysia.

I like a product with Sulfosulfuron as the active ingredient such as a product called Certainty. This is labeled as a post-emergent and will kill off tall fescue as its growing, so apply it once you see it. It should work well in the winter (above 50 degrees) as well if you are wanting to keep fescue out of the dormant Zoysia.

This is also a good product to control Nutgrass as that is persistent in your area in spring.

Alternatives to Atrazine for Zoysia

For Home Use – Certainty

Certainty Turf Herbicide - 1.25 Ounces
53 Reviews
Certainty Turf Herbicide - 1.25 Ounces
  • Not for Sale To: CA, DC, MI, MN

For Commercial Applications – Outrider Herbicide

Monsanto Outrider Herbicide 20oz- Sulfosulfuron Johnsongrass...
3 Reviews
Monsanto Outrider Herbicide 20oz- Sulfosulfuron Johnsongrass...
  • Sulfosulfuron 75.0%
  • Outrider Herbicide is for use in select pasture grasses and rangelands, winter and spring wheat, and non-crop sites such as: airports, conservation areas, ditch banks, dry canals, fallow areas, fencerows, industrial sites, lumberyards, manufacturing sites, natural areas, railroads, roadsides, storage areas, utility rights-of-way, warhouse areas, wild life areas, and many other listed areas.
  • For a ground broadcast application to bermudagrass or bahiagrass for the control of listed weeds with Outrider Herbicide apply at 0.75 to 2 ounces per acre in a solution containing a nonionic surfactant at a concentration of 0.25 percent by volume. Use the higher application rate of this product within the range for control of large established weeds or when weed growth is heavy or dense. Follow-up applications can be made after suitable re-growth of weeds but no sooner than 30 days after the

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