Best Weed Killer For Zoysia: Compare 10 Lawn Weed Treatments

#1 · Best Overall

1. SpeedZone EW

• Weight: 8 oz
• Form: Liquid

Best for: Zoysia broadleaf weed control.

Why it ranks #1: Its listed turf explicitly includes zoysiagrass, and it controls 90-plus listed weeds with visible effects within hours and rainfastness in as little as three hours.

Zoysiagrass is explicitly included among SpeedZone EW’s labeled turf species, enabling a direct match for zoysia owners targeting listed weeds. The liquid postemergent herbicide controls more than 90 listed weeds, with visible effects within hours and rainfastness in as little as three hours.

Four active ingredients support broad-spectrum control of listed broadleaf weeds, including clover, dandelion, and ground ivy. The stated cool-weather performance and visible effects within hours can suit treatment when conditions are cooler, while rainfastness in as little as three hours helps with scheduling around rainfall. The listing also allows reseeding in as little as seven days. Use remains label-dependent: read the full directions and observe precautions for your specific lawn.

Skip it if you need a stated large-area coverage figure before choosing; Celsius WG’s two-pack listing specifies coverage up to 4,000 square feet.

SpeedZone EW fits zoysia owners targeting listed broadleaf weeds who value rapid visible effects and a short stated rainfast interval. Check the label for application rates and confirm the 8-ounce quantity suits the lawn area you plan to treat.

Listed on Amazon as: SpeedZone EW Lawn Weed Killer

#2 · Southern Lawn Pick

2. Image Herbicide

• Weight: 2 lb
• Form: Liquid

Best for: Ready-to-spray zoysia lawn owners.

Why it ranks #2: The product explicitly lists zoysia among compatible southern grasses and targets tough broadleaf weeds; its ready-to-spray format simplifies application.

Zoysia is explicitly among the southern grasses named for Image Herbicide, enabling a lawn-focused option for broadleaf weed control without requiring concentrate mixing. The ready-to-spray liquid is described as fast acting, with visible results in hours, and is intended for southern lawns.

The ready-to-spray format supports applying the product directly to lawn weeds, while the directions call for an even spray over the lawn. Its stated control includes tough broadleaf weeds in zoysia, Bermuda, and St. Augustinegrass, making the turf match relevant to southern yards. The listing also reports results visible in hours and says the product kills weeds down to the root. Read and follow the label, including precautions for people and pets.

Skip it if you want a concentrate to measure and mix; Southern Ag Amine 2,4-D is a liquid concentrate with a stated per-acre use rate.

This is a practical match for zoysia owners seeking a ready-to-spray option for broadleaf weeds in southern lawns. It calls for even lawn application, so consider whether that whole-lawn spray workflow suits the area you intend to treat.

Listed on Amazon as: Image Herbicide Weed Killer for Southern Lawns, 32 Oz

#3 · Best for Nutsedge

3. Sedgehammer Plus

• Weight: 27.22 g
• Form: Powder

Best for: Zoysia nutsedge specialists.

Why it ranks #3: Established zoysia appears in its tolerance list, and its selective formula targets purple and yellow nutsedge, including underground tubers and nutlets.

Sedgehammer Plus explicitly lists established zoysia as a tolerated turf and targets purple and yellow nutsedge above and below ground, enabling treatment aimed at the parts that contribute to regrowth. The powder packets are selective when used as directed, but results take weeks.

Control extends to nutsedge rhizomes, tubers, and nutlets, addressing below-ground growth as well as visible plants. The listing also names green kyllinga and several other weeds among its targets. Leaves usually yellow in 10 to 14 days, with full results in three to four weeks, so it is not an immediate-results choice. Mix the packet as directed, do not add non-ionic surfactant, and do not store mixed solution longer than 24 hours.

Skip it if you need visible results within hours; SpeedZone EW lists visible effects within hours on listed weeds.

This is a focused fit for established zoysia with purple or yellow nutsedge, especially when below-ground control is the priority. Allow several weeks for full results, and mix only what you can use within the stated storage limit.

Listed on Amazon as: Sedgehammer Plus Turf Herbicide, Nutsedge Killer for Lawns, 2 Pack, 13.5g

#4

4. Prime Source Celsius WG

• Weight: 18.14 g
• Form: Powder

Best for: Warm-season turf powder users.

Why it ranks #4: Its three active ingredients control more than 120 weeds in warm-season turf, but the supplied description does not explicitly name zoysia.

Three active ingredients give Celsius WG broad-spectrum postemergent control, targeting more than 120 annual and perennial broadleaf weeds and grasses. Its small easy-mix packet offers a powder format for warm-season turf care, but the supplied details do not identify zoysia specifically among the listed turf types.

As a foliar-applied postemergent herbicide, Celsius WG is intended for weeds already growing, so it suits a treatment workflow focused on visible infestations rather than prevention. The powder comes with an easy-mix packet and product label, keeping the supplied components simple. Its stated control spans more than 120 annual and perennial broadleaf weeds and grasses in warm-season turf types; check the product label for zoysia-specific use and application directions before treating.

Skip it if you need the supplied listing to explicitly name zoysia; SpeedZone EW lists zoysiagrass among its labeled turf species.

Choose this powder for broad postemergent control in warm-season turf when mixing a packet fits your routine. Since the listing does not specifically name zoysia, verify the label’s turf directions before applying it to a zoysia lawn.

Listed on Amazon as: Prime Source Celsius WG – 0.226 oz Easy Mix Packet-Post Emerge Weed Control

#5 · Two-Treatment Pack

5. Celsius WG 2-Pack

• Weight: 12.75 g
• Form: Granule

Best for: Two-treatment seasonal planners.

Why it ranks #5: Two packets are described as covering two treatments and up to 4,000 square feet, with control claims for crabgrass and 120-plus weeds.

Two Celsius WG packets are presented as a spring-and-fall program covering up to 4,000 square feet, enabling buyers to plan two seasonal applications from one order. The listing also names crabgrass, dollarweed, and clover among the more than 120 weeds it targets.

Each packet is described as making two gallons, with one application in early spring as weeds emerge and another in late summer or fall. That schedule gives warm-season lawn keepers a stated two-treatment workflow from green-up through dormancy, rather than a single application. The product is a granule from Bug And Blade, and its included weed identification card supports identifying targets; follow the label to confirm application directions and turf suitability for zoysia.

Skip it if you require explicit zoysia turf labeling; SpeedZone EW specifically lists zoysiagrass among its labeled species.

This option suits buyers planning an early-spring and late-season weed-control cycle across the stated coverage area. Its schedule and weed list are useful planning details, but confirm the label allows use on your zoysia before treating.

Listed on Amazon as: Celsius WG Herbicide 2-Pack with Bug And Blade Weed ID Card

#6

6. Southern Ag Amine 2,4-D

• Weight: 16 oz
• Form: Liquid

Best for: Broadleaf weed spot-treatment users.

Why it ranks #6: This liquid controls many broadleaf weeds and is listed for certain grasses in lawns, but the supplied facts do not verify zoysia tolerance.

A low use rate of one to four pints per acre is the defining detail of Southern Ag Amine 2,4-D, enabling measured application across listed lawn and non-lawn settings. The liquid concentrate controls many broadleaf weeds and woody plants, but the supplied details do not specifically name zoysia.

This 32-ounce liquid concentrate is based on 2,4-D acid equivalent in a low-volatile amine form, and the stated uses span certain grasses in lawns, parks, golf courses, and pastures, plus fences and ditch banks. The low per-acre use rate supports measured mixing for appropriate areas. Its directions caution users to spray for indicated coverage without overlap and avoid drift to susceptible plants, so careful application matters around nearby ornamentals.

Skip it if you want explicit zoysia labeling; Image Herbicide names zoysia among the southern grasses it controls.

Consider this concentrate if your target is broadleaf weeds and you are comfortable measuring and spraying according to its label. For a zoysia lawn, the supplied details do not confirm turf fit, so verify suitability before application.

Listed on Amazon as: Southern Ag Amine 2,4-D WEED KILLER, 32oz – Quart

#7

7. Liquid Harvest Mesotrione

• Weight: 8 oz
• Form: Liquid

Best for: Mesotrione concentrate users.

Why it ranks #7: Its stated targets include crabgrass, clover, and dandelion, but the supplied compatible-grass list does not confirm zoysia.

Mesotrione is described as both pre- and post-emergent, enabling Liquid Harvest concentrate to target weeds before or after emergence. Its listing names 46 broadleaf species and grasses, but the supplied turf examples do not explicitly include zoysia, making label verification important for this roundup’s lawn.

The liquid concentrate starts absorbing upon application, although full weed death may take two to three weeks, so it suits buyers who can allow time for results. The listing says activation requires water and directs users to apply 0.15 inches of water if rainfall does not occur within ten days. Its target list includes crabgrass, clover, and dandelion. Since zoysia is not named in the supplied turf examples, confirm the label before applying it to that lawn.

Skip it if you require confirmed zoysia turf use; Sedgehammer Plus explicitly lists zoysia among established turf it tolerates when used as directed.

This concentrate may suit buyers seeking mesotrione’s pre- and post-emergent use and who can account for its water-activation directions. Its supplied turf examples do not confirm zoysia suitability, so consult the label before treating that lawn.

Listed on Amazon as: Liquid Harvest Mesotrione – 8oz – Mesotrione Concentrate (Compare to Tenacity) – Pre and Post-Emergent Weed Killer for Lawn and Turf Grasses

#8

8. Spectracide Weed Stop

• Weight: 2.3 lb
• Form: Liquid

Best for: Crabgrass and broadweed lawn care.

Why it ranks #8: It controls 470-plus listed weeds, including crabgrass, but its supplied information does not establish zoysia compatibility and warns of temporary discoloration on Bermudagrass.

Control of crabgrass alongside more than 470 listed weed types makes Spectracide Weed Stop a broad-target lawn concentrate, enabling treatment of grassy and broadleaf weeds with one product. Its rainproof claim applies when rainfall or watering comes three hours after application.

The concentrate targets crabgrass, dandelion, chickweed, clover, and yellow nutsedge, among other listed weeds, giving buyers a wide target list to check against their lawn. The product says it will not harm the lawn when used as directed, and its rainproof timing means water after three hours will not wash away effectiveness. Application is limited to daytime temperatures from 45 to 90°F; Bermudagrass may temporarily yellow or discolor.

Skip it if you need an explicitly zoysia-labeled product; SpeedZone EW lists zoysiagrass among its labeled turf species.

Choose this concentrate when crabgrass and a broad range of listed weeds are the targets, and the temperature window fits your application day. The listing does not specifically confirm zoysia compatibility, so check its label before treating that turf.

Listed on Amazon as: Spectracide Weed Stop for Lawns Plus Crabgrass Killer Concentrate, 32 Oz

#9

9. Agrisel QuinKill Max

• Weight: 16 oz
• Form: Liquid

Best for: Measured lawn-treatment planners.

Why it ranks #9: The product gives a mixing range of 0.5–1.45 fluid ounces per gallon for 1,000 square feet, but supplied details do not name target weeds or zoysia.

The listed application rate of 0.5 to 1.45 fluid ounces per gallon for 1,000 square feet gives Agrisel QuinKill Max a measurable starting point, enabling users to calculate treatment quantities from lawn area. The title calls it lawn-friendly and pet safe, but the supplied details give no specific weed targets.

Agrisel directs users to measure the area first and calculate how much solution to mix for preventative or curative treatment. That step, paired with the stated rate per gallon for 1,000 square feet, gives a planning workflow before application. The liquid product’s supplied details do not identify active ingredients, target weeds, or zoysia-specific directions, so the label is essential for confirming rates and whether it suits the intended lawn and weed.

Skip it if you need named weed targets before selecting a treatment; Image Herbicide lists broadleaf weed control in zoysia and other southern grasses.

This may suit lawn owners comfortable measuring area and following a calculated mixing rate. Because the supplied details do not name target weeds or confirm zoysia use, consult the complete label before deciding whether it matches your lawn problem.

Listed on Amazon as: Agrisel QuinKill Max Weed Killer, Lawn-Friendly, Pet Safe, 16 Ounces

#10

10. Spruce Weed & Grass Killer

• Weight: 5.4 lb
• Form: Multiple

Best for: Fast visible weed knockdown.

Why it ranks #10: This non-selective weed killer targets broadleaf and grassy weeds, so the supplied directions do not support using it over zoysia turf.

Visible effects in one hour and dead weeds in one day give Spruce Weed & Grass Killer3 a clear quick-results profile, enabling users to see progress soon after spraying. Its ready-to-use formula comes with a power wand and is described as non-selective, so it is not a turf-safe zoysia weed treatment.

The included power wand and ready-to-use 64-ounce bottle support direct application without a mixing step, while the listing says one bottle can treat up to 400 weeds. It targets broadleaf and grassy weeds, including crabgrass, clover, and dollarweed, and dehydrates plants to kill roots. Because the formula is explicitly non-selective, spraying zoysia can injure the lawn; use it only where killing surrounding grass is acceptable and follow the stated weather directions.

Skip it if you need selective weed control in zoysia; Image Herbicide is listed for zoysia and controls broadleaf weeds in southern grasses.

This kit suits users needing quick action on weeds in areas where killing grass is acceptable, such as isolated unwanted growth. It is a poor fit for spraying weeds within zoysia because the formula is non-selective.

Listed on Amazon as: Spruce Weed & Grass Killer3 Kit, Power Wand, 2 AA Batteries Included, 64 Oz