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Equus 720 SST

AMVAC · EPA Reg 5481-619 · Fungicide Document last checked 2026-05-30

About this product

Active ingredient Pending extraction
Manufacturer AMVAC
Category Fungicide

Full details for Equus 720 SST

EPA registration data Reg. 5481-619 — 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. 5481-619 →

Equus 720 SST is a Group M5 fungicide containing 54.0% Chlorothalonil. It is used to control various fungal diseases including Cercospora blight, purple spot, rust, and anthracnose in crops such as asparagus, dry beans, snap beans, and blueberries. The product can be applied via ground spray, air spray, or chemigation. For agricultural use, it is applied at rates ranging from 2.0 to 40.0 pints per acre depending on the crop and target disease. When using chemigation, specific instructions must be followed to ensure proper distribution and prevent system damage. Users must follow strict PPE requirements, including long-sleeved shirts, long pants, chemical-resistant gloves (nitrile, natural rubber, or butyl rubber), protective eyewear, and shoes plus socks. For certain applications, a NIOSH-approved respirator may be required. The label notes that the product is toxic to aquatic invertebrates and wildlife; avoid application near water bodies or areas where runoff could enter them. Always ensure uniform coverage for effective disease control.

Pests covered (6)
Cercospora Blight, Purple Spot, RustAnthracnose, Ascochyta Blight, Cercospora Leaf Blotch, Downy Mildew, RustRustBotrytis Blight (Gray Mold)Anthracnose (Ripe Rot) [suppression], Mummy Berry [suppression]Rust, Septoria Leaf Spot
Areas treatable (4)
AsparagusBeans, Dry (except soybeans)Beans, SnapBlueberries

How to treat each type of area 6

Asparagus

Target pest Location Rate Unit Label notes
Cercospora Blight, Purple Spot, Rust Outdoor 2.0-4.0 pints/acre Apply in 25 to 50 gallons per acre by ground equipment only. Begin application after harvest of spears. Repeat at 2- to 4-week intervals until ferns are no longer productive. Do not apply within 190 days (120 days in CA and AZ) before harvest.

Beans, Dry (except soybeans)

Target pest Location Rate Unit Label notes
Anthracnose, Ascochyta Blight, Cercospora Leaf Blotch, Downy Mildew, Rust Outdoor 1.37-2.0 pints/acre Use in sufficient water to obtain adequate coverage. Begin applications at first onset of disease (2 to 4 weeks before flowering). Repeat at 7- to 10-day intervals. For use only on beans to be harvested with dry pods removed. Do not apply within 14 days of harvest.

Beans, Snap

Target pest Location Rate Unit Label notes
Rust Outdoor 1.37-3.0 pints/acre Use in sufficient water to obtain adequate coverage. Begin applications during early bloom stage or when disease first threatens. Repeat as necessary, but do not apply at less than 7-day intervals.
Botrytis Blight (Gray Mold) Outdoor 3.0 pints/acre Use in sufficient water to obtain adequate coverage. Begin applications during early bloom stage or when disease first threatens. Repeat as necessary, but do not apply at less than 7-day intervals.

Blueberries

Target pest Location Rate Unit Label notes
Anthracnose (Ripe Rot) [suppression], Mummy Berry [suppression] Outdoor 3.0-4.0 pints/acre Use in sufficient water to obtain adequate coverage, normally 20 to 100 gallons per acre. Begin applications at budbreak (green tip). Repeat at 10-day intervals until early bloom, but do not apply at less than 10-day intervals. Do not apply after full bloom; phytotoxicity may occur. Do not apply within 42 days before harvest.
Rust, Septoria Leaf Spot Outdoor 3.0-4.0 pints/acre Use in sufficient water to obtain adequate coverage, normally 20 to 100 gallons per acre. Begin applications at budbreak (green tip). Repeat at 10- to 14-day intervals, but do not apply at less than 10-day intervals.

Mixing instructions 1

For pests Label notes
General Can be used effectively in dilute or concentrate sprays. Ensure uniform coverage.

Worker safety

Re-entry interval (REI) 12
PPE required Long-sleeved shirt and long pants; Chemical-resistant gloves (nitrile, natural rubber, or butyl rubber); Shoes plus socks; Protective eyewear (goggles, safety glasses, or face shield). For certain applications, a NIOSH-approved respirator may be required.

Timing & weather

Use restrictions 4