SUREPYC IQ

AMVAC · EPA Reg 5481-631 · Herbicide Document last checked 2026-05-30

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. 5481-631 →

Surepyc IQ is a selective herbicide designed for use on established, warm-season turfgrasses. It contains two active ingredients: imazaquin (16.0%) and sulfentrazone (8.0%). This product is specifically formulated to control Kyllinga, nutsedge, and other listed weeds such as dandelion, dollarweed, henbit, lawn burweed, spurge, wild garlic, wild onion, and yellow woodsorrel. It is intended for use on residential, institutional, and commercial turfgrasses, including Bermudagrass, Centipedegrass, St. Augustinegrass, and Zoysiagrass. The product is a soluble liquid formulation that can be applied via spray. For optimal control, it is recommended to apply when weeds are actively growing. Users should be aware that sequential applications can increase control of Kyllinga and nutsedge while enhancing turfgrass tolerance. Handling requires specific Personal Protective Equipment (PPE), including long-sleeved shirts, long pants, protective eyewear, chemical-resistant gloves, and shoes plus socks. Avoid application during periods of slow turfgrass growth or when turf is under stress. Do not apply directly to water or areas where surface water is present. Always follow specific mixing instructions, especially when combining with fertilizers, to ensure compatibility and effectiveness.

Pests covered (2)

Kyllinga, nutsedge, dandelion, dollarweed, henbit, lawn burweed, spurge, wild garlic, wild onion, yellow woodsorrel, and other listed weedsDandelion, Nutsedge, Sedges, Spurge

Areas treatable (1)

Warm Season Turfgrasses (Bermudagrass, Centipedegrass, St. Augustinegrass, Zoysiagrass)

How to treat each type of area 1

Warm Season Turfgrasses (Bermudagrass, Centipedegrass, St. Augustinegrass, Zoysiagrass)

Target pest	Location	Rate	Unit	Label notes
Kyllinga, nutsedge, dandelion, dollarweed, henbit, lawn burweed, spurge, wild garlic, wild onion, yellow woodsorrel, and other listed weeds	Outdoor	0.5 fl. oz. to 1.5 fl. oz. per 1,000 sq. ft.	fl. oz. per 1,000 sq. ft.	Use on well-established, non-stressed turfgrass. Avoid application if turf is under stress from low temperatures, drought, or compaction.

Mixing instructions 1

Label notes
When mixing with liquid fertilizers, use small prototype quantities first to check compatibility. If mixing with non-ionic surfactants, add them to the spray mixture after herbicide and water. If using tank-mix partners, ensure they are compatible; conduct a jar test if unsure.

Worker safety

Re-entry interval (REI) 12

PPE required Long-sleeved shirt and long pants; Protective eyewear; Chemical resistant gloves; Shoes plus socks.

Timing & weather

Apply when weeds are actively growing.
Avoid application if rainfall or irrigation is expected within 48 hours.
Irrigation of 0.25 to 0.5 inches is suggested within 1-7 days after application to incorporate product into the soil.

Use restrictions 7

Do not use on unlabeled turfgrass species.
Do not apply to newly seeded, sprigged, or sodded turfgrass until well established.
Do not apply to ornamental plants, food producing trees, or berry bushes.
Do not apply to turfgrass that is under stress.
Do not apply directly to water or areas where surface water is present.
Do not apply in a way that contacts workers or other persons.
Do not apply to turfgrass within 3 months of harvest.

Label SDS

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Reference only. Always read and follow the most current EPA-approved label on the product container. State and local restrictions may apply that are not reflected in this digitised copy. Verify the EPA registration number and revision date before use.