Lawn Weed Killer with Trimec

SouthernAg · 2,4-D 3.05% · EPA Reg 2217-570-829 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient 2,4-D 3.05%

Manufacturer SouthernAg

Category Herbicide

Full details for Lawn Weed Killer with Trimec

Source product label ↗ Open the catalog source label while the local copy is reviewed. Verify the product name, EPA registration number, and revision before use. Source safety data sheet ↗ Open the catalog source SDS while the local copy is reviewed. Verify the exact product and revision before relying on it. EPA registration data Reg. 2217-570-829 — registry reference, signal word and status.

Applicator discussion

Nothing here is label direction — the label is the law. These are notes from other applicators, moderated before they appear. Check the labeling accompanying the product and applicable state requirements.

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According to the label From the product label

These details were extracted from this product's label PDF. The label is the law. Confirm every rate, site, restriction and safety requirement against the label before mixing or applying. Check for a state supplemental label; a product may be restricted or prohibited in a state or site even when a rate appears below. · EPA registration data for Reg. 2217-570-829 →

Lawn Weed Killer with TRIMEC is a water-based broadleaf herbicide designed for use on most ornamental lawns, including Kentucky Bluegrass, perennial ryegrass, fescues, bermudagrass, bahia-grass, bentgrass, buffalograss, and zoysiagrass. It is specifically formulated to control a wide variety of broadleaf weeds such as dandelions, chickweed, knotweed, plantain, henbit, spurge, clover, and many others. The product contains three active ingredients: Mecoprop-p (5.30%), 2,4-D (3.05%), and Dicamba (1.29%). It can be applied via tank sprayer or specific hose-end sprayers for both spot treatments and broadcast applications. When spot treating, users should avoid applying as a fine mist to prevent injury to desirable plants and must not apply near water, storm drains, or gutters. For broadcast applications, follow specific dilution rates based on the grass type and sprayer type used. Always wear long-sleeved shirts, long pants, socks, shoes, and rubber gloves during handling. Avoid contact with eyes and skin. Do not allow people or pets into the treated area until sprays have dried.

Pests covered (2)

broadleaf weeds (dandelions, chickweed, knotweed, plantain, henbit, spurge, etc.)Bermudagrass, Bindweed, Bluegrass, Broadleaf Weeds, Chickweed, Clover, Dandelion, Grasses, Purslane, Ryegrass, Spurge, Thistle

Areas treatable (1)

ornamental lawns (Kentucky Bluegrass, perennial ryegrass, fescues, bermudagrass, bahia-grass, bentgrass, buffalograss, zoysiagrass)

How to treat each type of area 1

ornamental lawns (Kentucky Bluegrass, perennial ryegrass, fescues, bermudagrass, bahia-grass, bentgrass, buffalograss, zoysiagrass)

Target pest	Location	Rate	Unit	Dilution	Label notes
broadleaf weeds (dandelions, chickweed, knotweed, plantain, henbit, spurge, etc.)	Outdoor	Spot treatment: max 5.0 fl. oz. per 1,000 sq. ft.; Broadcast: varies by grass type	fl. oz.	Varies by sprayer type	Do not use on 'Floratam' St. Augustine, carpetgrass, dichondra, or lawns containing desirable clovers. Do not spray roots of trees or ornamentals.

Mixing instructions 2

For pests	Location	Amount	Per	Label notes
St. Augustine, Bentgrass, Buffalograss and Centipedegrass	Outdoor	1/2 fl. oz. (1 Tablespoon)	per gallon of water	For Tank sprayers to cover 200 sq. ft. per gallon. For Ortho Hose-End: 2.5 fl. oz. per 5 gallon sprayer jar.
Bluegrass, Fescues, Perennial Ryegrass, Bahia-grass, Bermudagrass and Zoysiagrass	Outdoor	1 fl. oz. (2 Tablespoons)	per gallon of water	For Tank sprayers to cover 200 sq. ft. per gallon. For Ortho Hose-End: 5 fl. oz. per 5 gallon sprayer jar.

Worker safety

Re-entry interval (REI) until sprays have dried

PPE required Wear long-sleeved shirt, long pants, socks, shoes and rubber gloves.

Timing & weather

Do not apply if rain or rain is expected within 24 hours.
Do not apply when temperatures are above 90°F.
For St. Augustine/Centipedegrass: do not apply when temperatures are below 45°F.

Use restrictions 5

Do not use on 'Floratam' St. Augustine, carpetgrass, dichondra, or lawns containing desirable clovers.
Do not spray roots of trees or ornamentals.
Do not apply as a fine mist.
Do not apply directly to or near water, storm drains, gutters, sewers, or drainage ditches.
Do not apply within 25 feet of rivers, fish ponds, lakes, streams, reservoirs, marshes, estuaries, bays, and oceans.