5 Best Herbicides for Zoysia Grass 2025

Zoysia grass is a popular warm-season turfgrass known for its dense growth, drought tolerance, and ability to thrive in a variety of soil types. However, like any other grass, Zoysia is susceptible to weed infestations that can compromise its health and appearance. To maintain a lush, weed-free Zoysia lawn, it’s essential to use the right herbicides. In this article, we’ll review five of the best herbicides for Zoysia grass, discussing their features, benefits, and potential drawbacks. Whether you’re dealing with pre-emergent or post-emergent weeds, this guide will help you choose the right product for your lawn care needs.

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1. The Andersons Barricade Professional-Grade Granular Pre-Emergent Weed Control

Overview:

The Andersons Barricade is a professional-grade granular pre-emergent herbicide designed to prevent weeds before they emerge. It’s particularly effective for Zoysia grass, as it targets common weeds like crabgrass, goosegrass, and annual bluegrass without harming the turf.

Key Features:

• Coverage: One 18 lb bag covers up to 5,800 square feet.
• Active Ingredient: Prodiamine (0.48%), a highly effective pre-emergent herbicide.
• Application: Easy-to-spread granular formula that can be applied using a standard broadcast spreader.
• Long-Lasting Protection: Provides up to 4 months of weed control.

Pros:

• Prevents a wide range of grassy and broadleaf weeds.
• Safe for use on Zoysia grass and other warm-season turfgrasses.
• Long-lasting protection reduces the need for frequent applications.
• Granular form minimizes drift and ensures even distribution.

Cons:

• Only effective as a pre-emergent; won’t control existing weeds.
• Requires proper timing (early spring or fall) for maximum effectiveness.

Best For:

Homeowners and professionals looking for a reliable pre-emergent herbicide to keep weeds at bay in Zoysia lawns.

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2. Southern Ag 006130 Atrazine St. Augustine Weed Killer 32oz Specialty Herbicide

Overview:

Southern Ag Atrazine is a versatile post-emergent herbicide that targets a wide range of weeds, including dollarweed, clover, and chickweed. While it’s marketed for St. Augustine grass, it’s also safe for use on Zoysia grass when applied correctly.

Key Features:

• Coverage: 32 oz bottle treats up to 1,000 square feet.
• Active Ingredient: Atrazine (4%), a broad-spectrum herbicide.
• Application: Liquid formula that can be applied with a sprayer.
• Weed Control: Effective against both broadleaf and grassy weeds.

Pros:

• Controls a wide variety of weeds, including some that are difficult to manage.
• Safe for Zoysia grass when used as directed.
• Can be used as both a post-emergent herbicide and a pre-emergent for certain weeds.
• Affordable and widely available.

Cons:

• Not suitable for use on cool-season grasses or newly seeded lawns.
• May require multiple applications for complete weed control.
• Potential for runoff, so avoid application near water sources.

Best For:

Zoysia grass owners dealing with stubborn broadleaf and grassy weeds.

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3. Mesotrione – 16 Ounces – (Compare to Tenacity) – Turf Herbicide

Overview:

Mesotrione is a highly effective herbicide that mimics the popular Tenacity herbicide. It’s a selective post-emergent and pre-emergent herbicide that targets weeds like crabgrass, nutsedge, and clover while being safe for Zoysia grass.

Key Features:

• Coverage: 16 oz bottle treats up to 20,000 square feet.
• Active Ingredient: Mesotrione (40%), a powerful herbicide with dual action.
• Application: Liquid formula that requires mixing with water and application via sprayer.
• Weed Control: Effective against over 46 broadleaf weeds and grasses.

Pros:

• Works as both a pre-emergent and post-emergent herbicide.
• Safe for use on Zoysia grass and other warm-season turfgrasses.
• Provides systemic control, killing weeds from the roots up.
• Can be used during Zoysia green-up without causing damage.

Cons:

• Higher price point compared to other herbicides.
• Requires careful mixing and application to avoid overuse.
• May cause temporary whitening of Zoysia grass, which usually resolves on its own.

Best For:

Those looking for a versatile herbicide that can handle both pre- and post-emergent weed control in Zoysia lawns.

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4. 3 Way Max Weed Killer, Eliminate 50+ Weeds, Safe on Grass, Weed Spray

Overview:

3 Way Max Weed Killer is a post-emergent herbicide designed to eliminate over 50 types of weeds, including dandelions, clover, and chickweed. It’s safe for use on Zoysia grass and other turfgrasses, making it a versatile option for lawn care.

Key Features:

• Coverage: 32 oz bottle treats up to 1,000 square feet.
• Active Ingredients: 2,4-D, Mecoprop-p, and Dicamba, a powerful trio for broadleaf weed control.
• Application: Liquid formula that requires mixing with water and application via sprayer.
• Weed Control: Targets over 50 broadleaf weeds.

Pros:

• Effective against a wide range of broadleaf weeds.
• Safe for Zoysia grass when used as directed.
• Pet-safe and low-odor formula.
• Comes with protective gloves for safe application.

Cons:

• Not effective against grassy weeds like crabgrass or nutsedge.
• Requires careful application to avoid damage to desirable plants.
• May require multiple applications for complete weed control.

Best For:

Zoysia grass owners dealing with persistent broadleaf weeds.

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5. Celsius WG – 0.226 oz Easy Mix Packet-Post Emerge Weed Control

Overview:

Celsius WG is a professional-grade post-emergent herbicide that targets a wide range of weeds, including broadleaf and grassy weeds. It’s safe for use on Zoysia grass and provides excellent control without harming the turf.

Key Features:

• Coverage: 0.226 oz packet treats up to 1,000 square feet.
• Active Ingredients: Dicamba, Iodosulfuron, and Thiencarbazone, a powerful combination for weed control.
• Application: Water-dispersible granules that require mixing with water and application via sprayer.
• Weed Control: Effective against over 150 weeds, including tough-to-control species.

Pros:

• Provides broad-spectrum control of both broadleaf and grassy weeds.
• Safe for use on Zoysia grass and other warm-season turfgrasses.
• Easy-to-use pre-measured packets for accurate application.
• Works quickly, with visible results in as little as 3-5 days.

Cons:

• Higher cost compared to other herbicides.
• Requires careful mixing and application to avoid overuse.
• Not suitable for use on cool-season grasses.

Best For:

Those seeking a professional-grade herbicide for comprehensive weed control in Zoysia lawns.

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How to Choose the Best Herbicide for Zoysia Grass

When selecting an herbicide for your Zoysia lawn, consider the following factors:

1. Type of Weeds: Identify the weeds you’re dealing with. Pre-emergent herbicides like The Andersons Barricade are ideal for preventing weeds, while post-emergent herbicides like Southern Ag Atrazine and 3 Way Max are better for existing weeds.
2. Application Method: Granular herbicides are easier to apply evenly, while liquid herbicides require mixing and spraying but offer more precise control.
3. Safety: Ensure the herbicide is safe for Zoysia grass and won’t harm desirable plants or pets.
4. Coverage: Consider the size of your lawn and choose a product that provides adequate coverage.
5. Budget: Herbicides vary in price, so choose one that fits your budget while meeting your lawn care needs.

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Conclusion

Maintaining a healthy, weed-free Zoysia lawn requires the right herbicide and proper application. Whether you’re looking for a pre-emergent solution like The Andersons Barricade or a post-emergent option like Celsius WG, there’s a product on this list to meet your needs. By understanding the strengths and limitations of each herbicide, you can make an informed decision and keep your Zoysia grass looking its best all year round.

Remember to always follow the manufacturer’s instructions and apply herbicides at the right time for optimal results. With the right care, your Zoysia lawn can remain a lush, green oasis free from unsightly weeds.