PREMION

AMVAC · EPA Reg 5481-585 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction

Manufacturer AMVAC

Category Fungicide

Full details for PREMION

EPA registration data Reg. 5481-585 — 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. 5481-585 →

PREMION is a flowable turf fungicide used to control various fungal diseases on golf course turf. It contains two active ingredients: Pentachloronitrobenzene (PCNB) at 37.82% and Tebuconazole at 2.50%. It is designed for use on golf course turf, including greens, tees, and fairways, but is prohibited for use on golf course roughs, residential sites, or ornamental plants. Applications should be made with sufficient water volume to ensure thorough coverage. The product is highly effective when applied preventatively as conditions become favorable for disease development. Note that in New York State, specific application rate restrictions apply. Handling requires specific personal protective equipment (PPE), including long-sleeved shirts, long pants, socks, shoes, and chemical-resistant gloves (such as barrier laminate, nitrile, or neoprene). If applying in enclosed spaces, a respirator with an organic vapor cartridge is required. Users must avoid application during high temperatures (above 85°F) and must be cautious of environmental hazards, as the product is toxic to fish and aquatic organisms. Do not apply near water or areas where surface water is present. Always follow local regulations and specific state restrictions.

Pests covered (17)

Anthracnose (Colletotrichum cereale)Brown Patch (Rhizoctonia solani)Brown Ring Patch (Walkeria var. cinerea)Cool Season Brown Patch/Yellow Patch (Rhizoctonia cerealis)Dollar Spot (Sclerotinia homoeocarpa)Fairy Ring (caused by basidiomycete fungi)Gray Leaf Spot (Pyricularia grisea)Large Patch (Rhizoctonia solani)Microdochium Patch (Microdochium nivale)Necrotic Ring Spot (Ophiostoma korrae)Pink Patch (Limonia rosepili)Red Thread (Marasmius panellus)Rust (Puccinia spp.)Snow Mold, Gray (Typhula spp. or Microdochium nivale)Spring Fed Spot (Ophiostoma korrae, O. herpotrichia, Leptosphaeria korrae, Rhizosphaera)Summer Patch (Magnaporthe sorghi)Take-all Root Rot, Bermudagrass Decline, Warm Season Turfgrass Decline (Gaeumannomyces graminis var. graminis)

Areas treatable (1)

Golf course turf (greens, tees, fairways)

How to treat each type of area 17

Golf course turf (greens, tees, fairways)

Preventative

Target pest	Location	Rate	Unit	Label notes
Anthracnose (Colletotrichum cereale)	Outdoor	4 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Brown Patch (Rhizoctonia solani)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Brown Ring Patch (Walkeria var. cinerea)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Cool Season Brown Patch/Yellow Patch (Rhizoctonia cerealis)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 21-28 day intervals.
Dollar Spot (Sclerotinia homoeocarpa)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Fairy Ring (caused by basidiomycete fungi)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval. Apply in late/early spring when soil temps 55-60°F.
Gray Leaf Spot (Pyricularia grisea)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Large Patch (Rhizoctonia solani)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.
Microdochium Patch (Microdochium nivale)	Outdoor	8 to 12 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.
Necrotic Ring Spot (Ophiostoma korrae)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.
Pink Patch (Limonia rosepili)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Red Thread (Marasmius panellus)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Rust (Puccinia spp.)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.
Snow Mold, Gray (Typhula spp. or Microdochium nivale)	Outdoor	8 to 12 fl. oz.	per 1,000 sq. ft.	Apply in late fall/early spring when soil temps 55-60°F.
Spring Fed Spot (Ophiostoma korrae, O. herpotrichia, Leptosphaeria korrae, Rhizosphaera)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.
Summer Patch (Magnaporthe sorghi)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 14-28 day intervals.
Take-all Root Rot, Bermudagrass Decline, Warm Season Turfgrass Decline (Gaeumannomyces graminis var. graminis)	Outdoor	6 to 8 fl. oz.	per 1,000 sq. ft.	Apply 28 days interval.

Mixing instructions 1

For pests	Location	Amount	Per	Finished strength	Label notes
General Turf Fungicide	Outdoor	4 to 12 fl. oz.	1,000 sq. ft.	Varies by application	Dilute with water to achieve desired final volume. Refer to Application Dilution Chart for specific volumes (1, 2, 3, or 4 gallons per 1,000 sq. ft.).

Worker safety

PPE required Long-sleeved shirt and long pants, socks, shoes and gloves. Chemical-resistant gloves (barrier laminate, nitrile, or neoprene or Viton®). If in enclosed spaces, use a respirator with an organic vapor cartridge (NIOSH/Niosh approval prefix TC 23C) or a canister approved for pesticides (NIOSH/Niosh approval prefix TC-14G) or a NIOSH approved respirator with an organic vapor (OV) cartridge and canister with any N, R, P, or HE combination filter.

Timing & weather

Do not apply when daytime high temperatures exceed 85° F.
Apply preventatively as conditions become favorable for disease development.

Use restrictions 9

Do not use on golf course roughs.
Do not use on residential sites, including lawns, yards, and ornamental plants.
Do not use on grounds around homes and apartments, grounds around daycare facilities, school yards, parks, playgrounds, and athletic fields.
Do not use clippings for animal feed.
Do not apply by aerial application.
Do not apply through any type of irrigation system.
In New York State, maximum single application rate is 8 oz per 1,000 sq. ft.
In New York State, do not exceed 24 fl. oz. per acre per year.
Do not exceed 32 fl. oz. of PREMION per 1,000 sq. ft. per year.