Zoysia grass is a popular warm-season turfgrass known for its dense growth, drought tolerance, and lush appearance. However, maintaining a pristine Zoysia lawn requires effective weed control that targets unwanted plants without harming the turf. Liquid weed killers offer a precise, efficient solution for managing weeds in Zoysia grass lawns.

When selecting a liquid weed killer for Zoysia grass, it is crucial to choose a selective herbicide that won’t damage your lawn. Zoysia can be sensitive to certain chemicals, so understanding the active ingredients and application timing is essential for successful weed management. This guide reviews the best liquid herbicides specifically formulated or safe for use on Zoysia grass.

This article explores the top 10 best liquid weed killers for Zoysia grass, offering detailed insights into their effectiveness, ingredients, safety, and application methods. Whether you’re dealing with broadleaf weeds, crabgrass, or other lawn invaders, you’ll find the perfect solution to maintain a healthy, weed-free Zoysia lawn.

Top 10 Best Liquid Weed Killers for Zoysia Grass

1. Ortho Weed B Gon Weed Killer for Lawns

Ortho Weed B Gon is a selective herbicide that effectively targets broadleaf weeds without harming Zoysia grass. It contains 2,4-D, dicamba, and MCPP for reliable control. Safe for use in established lawns when applied as directed.

It works by penetrating weed leaves and moving to the roots, causing systemic damage. Apply during active weed growth in spring or early summer. Rainproof in one hour and visible results within days.

Great for homeowners looking for quick and dependable results. Spot treat or cover large areas with a hose-end sprayer. Wear protective clothing during application.

2. Southern Ag Amine 2,4-D Weed Killer

This selective herbicide is ideal for Zoysia lawns battling broadleaf weeds like dandelion and clover. The 2,4-D formulation ensures effective weed suppression without damaging the turf. Best applied in cooler morning temperatures.

Results are typically seen within a week of treatment. Mix with water and apply evenly across affected areas. Reapply as necessary for persistent weeds.

Safe for pets and kids once dry. Avoid windy days to prevent drift. Follow all label instructions for best outcomes.

3. BioAdvanced All-in-One Lawn Weed & Crabgrass Killer

This product controls over 200 broadleaf and grassy weeds, including crabgrass, without harming Zoysia. Its dual-action formula includes quinclorac, 2,4-D, and dicamba. A great choice for mixed weed infestations.

Apply during active weed growth when temperatures are below 85°F. It offers visible results in a few days and is rainproof after one hour. Use a hose-end or tank sprayer for even coverage.

Not recommended for newly seeded lawns. Store away from sunlight and heat. Always wear gloves and safety goggles during application.

4. Tenacity Herbicide

Tenacity is a powerful, pre- and post-emergent herbicide that controls a wide range of weeds without harming Zoysia when used correctly. Contains mesotrione, which inhibits weed photosynthesis. Safe for residential and commercial use.

Use with a non-ionic surfactant for improved effectiveness. Best applied before weed emergence or on young weeds. Follow specific dilution rates on the label.

Offers long-lasting control with minimal environmental impact. Great for integrated weed management plans. May temporarily bleach grass blades.

5. Fertilome Weed-Out Lawn Weed Killer

Fertilome Weed-Out is a selective herbicide containing 2,4-D and mecoprop that targets broadleaf weeds in Zoysia lawns. Provides fast knockdown and minimal turf damage. Ideal for lawns with light to moderate weed pressure.

Apply with a pump sprayer for precise targeting. Avoid using on newly sodded or seeded areas. Rainfast in six hours.

Offers consistent performance for homeowners and professionals. Great for use throughout the growing season. Wear eye protection and gloves.

6. Spectracide Weed Stop for Lawns

This ready-to-use product is designed to control dandelions, clover, and other broadleaf weeds. It contains a mix of 2,4-D, dicamba, and MCPP, making it safe for Zoysia grass. Easy-to-use trigger spray bottle.

Best applied in the early morning or late afternoon. Rainproof within six hours. Use as a spot treatment for optimal results.

Visible effects in as little as three hours. Safe for use around pets and children after drying. Do not mow 1–2 days before or after application.

7. Gordon’s SpeedZone Lawn Weed Killer

This fast-acting formula controls weeds within 24 hours. Safe for Zoysia and other warm-season grasses. Contains carfentrazone, 2,4-D, MCPP, and dicamba for broad-spectrum weed control.

Works in cooler temperatures, making it versatile for spring and fall use. Mix with water and apply using a tank sprayer. Avoid application during drought stress.

Great for homeowners and landscapers. Read and follow all label directions. May cause minor discoloration on stressed turf.

8. Bonide Weed Beater Ultra

This selective weed killer is safe for Zoysia and controls over 200 types of broadleaf weeds. Rainfast in just a few hours. Works in cool and warm weather alike.

Contains four active ingredients for quick, long-lasting results. Spot treat or broadcast over large areas. Not safe for new sod or young grass.

Use protective clothing during mixing and spraying. Repeat applications may be needed for stubborn weeds. Store in original container away from food.

9. Image Southern Lawn Weed Killer

Designed for southern lawns, including Zoysia, this herbicide targets a broad range of weeds. Includes 2,4-D, mecoprop, and dicamba. Provides quick results without harming the turf.

Great for summer weed control. Apply in calm weather using a hose-end or pump sprayer. Avoid using on dry, drought-stressed lawns.

Use during the early growth stage of weeds. Always read and follow label directions. Reapply every few weeks for season-long control.

10. Hi-Yield 2,4-D Amine Weed Killer

This product uses the 2,4-D active ingredient to selectively control broadleaf weeds in Zoysia lawns. It is effective on dandelion, chickweed, and plantain. Best applied in mild weather conditions.

Easy to mix and spray with most lawn equipment. Avoid applying in windy conditions. Do not water the lawn for 24 hours after application.

Excellent for routine lawn maintenance. Use every 4–6 weeks as needed. Always wear gloves and avoid inhaling vapors.

7 Buyer’s Tips for Choosing the Best Liquid Weed Killer for Zoysia Grass

• Use selective herbicides labeled safe for Zoysia.
• Check active ingredients like 2,4-D and dicamba.
• Choose a product suitable for the specific weed types.
• Apply in cool, calm weather for best results.
• Look for rainproof formulations for convenience.
• Spot treat for better control and less turf stress.
• Follow all label instructions for mixing and application.

7 Frequently Asked Questions (FAQs)

1. Can I use glyphosate on Zoysia grass? No, glyphosate is non-selective and will damage or kill Zoysia grass.
2. When is the best time to apply weed killer? Apply in spring or early summer when weeds are actively growing.
3. How often should I apply weed killer? Reapply every 4–6 weeks or as recommended on the label.
4. Is Tenacity safe for Zoysia? Yes, when used as directed, Tenacity is safe for Zoysia grass.
5. Can I mow after applying weed killer? Wait at least 1–2 days before mowing to allow full absorption.
6. Are liquid weed killers better than granular? Liquid products offer quicker absorption and better precision.
7. Do I need to water after application? Most products don’t require watering; check the label for specifics.

Conclusion

Choosing the best liquid weed killer for Zoysia grass ensures healthy, lush lawns free of unsightly weeds. Selective herbicides with proven active ingredients like 2,4-D and dicamba provide effective control while preserving turf health. Application timing, weather conditions, and proper safety measures play key roles in successful weed management. By following our buyer’s tips and selecting one of the recommended products, you can maintain a vibrant Zoysia lawn throughout the season. Invest in the right solution to enjoy weed-free turf all year round.