Harness XTRA

CaroVail · 2,4-D · EPA Reg 524-485 · Herbicide Document last checked 2026-05-30

About this product

Active ingredient 2,4-D

Manufacturer CaroVail

Category Herbicide

Full details for Harness XTRA

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. 524-485 — 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. 524-485 →

Harness Xtra 5.6L is a restricted use preemergence herbicide designed for weed control in field corn, production seed corn, silage corn, sweet corn, and popcorn. It contains three active ingredients: acetochlor (33.4%), atrazine (26.9%), and metolachlor-S-metolachlor (16.8%). This product is effective against a wide range of annual and perennial grasses and certain broadleaf weeds. It is applied as a liquid via ground broadcast or aerial application. Because it is a restricted use pesticide, it must only be used by certified applicators or under their direct supervision. Key handling notes include strict adherence to spray drift management to protect non-target crops and water sources, and careful management of tank mixes to ensure compatibility with other herbicides and fertilizers. Users must follow specific timing and weather guidelines to prevent crop injury or environmental contamination.

Pests covered (2)

Annual and perennial grasses, certain broadleaf weedsAnnual Grasses

Areas treatable (1)

Field corn, Production seed corn, Silage corn, Sweet corn, and Popcorn

How to treat each type of area 1

Field corn, Production seed corn, Silage corn, Sweet corn, and Popcorn

Target pest	Location	Rate	Unit	Dilution	Label notes
Annual and perennial grasses, certain broadleaf weeds	Outdoor	1.0-2.3	quarts	N/A	Preemergence application.

Mixing instructions 1

For pests	Label notes
General weed control	Check compatibility with other herbicides and fertilizers; use standard sprayable fluid fertilizer compatibility tests.

Worker safety

PPE required Wear long-sleeved shirt and long pants, chemical-resistant gloves, protective eyewear, and protective footwear.

Timing & weather

Apply as a preemergence treatment.
Do not apply during temperature inversions.
Avoid application when wind speeds exceed 10 mph.

Use restrictions 2

Restricted Use Pesticide; use only by certified applicators or under direct supervision.
Not for sale, use, distribution or use in Nassau and Suffolk Counties of New York State, in the state of Hawaii or Alaska, or in the U.S. Virgin Islands, and the North Mariana Islands.