Chemicalsbasfpt-wasp-freeze-ii-wasp-hornet-insecticide

PT® Wasp-Freeze II Wasp & Hornet Insecticide

BASF · Prallethrin 0.1% · EPA Reg 499-550 · INSECTICIDE Document last checked 2026-05-30

About this product

Active ingredient Prallethrin 0.1%
Manufacturer BASF
Category INSECTICIDE

Full details for PT® Wasp-Freeze II Wasp & Hornet Insecticide

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. 499-550 — 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. 499-550 →

PT Wasp Freeze II is an aerosol formulation used to control wasps, hornets, yellowjackets, bees, and spiders (including Black Widow and Brown Recluse). For wasps, hornets, yellowjackets, and bees, spray the nest or nest opening outdoors, ideally in the early morning or evening. You can also apply this product directly to spiders and/or their webbing.

Pests covered (7)
WASPS AND HORNETSYELLOWJACKETS AND BEESSPIDERS (including Black Widow and Brown Recluse)BEESWASPSHORNETSYELLOWJACKETS
Areas treatable (5)
nestnest openingCOMMERCIAL/INSTITUTIONAL/INDUSTRIAL BUILOINGS (ATTICS)DOMESTIC DWELLINGS (INDOOR)DOMESTIC DWELLINGS (OUTDOOR)

Application instructions from the label 3

nest

Hold container in upright position. Stand a safe distance, 6 to 15 ft from the nest, and not directly underneath. Align actuator opening with the mark on the valve cup. Aim the actuator opening toward the nest with the wind at your back. Treat the nest until thoroughly wet. Contact wasps and hornets on the nest with spray when possible.

Target pest
WASPS AND HORNETS
Location
Outdoor

nest opening

Locate nest. Align actuator opening directly opposite the mark on the valve cup. Press down on the actuator and apply, using a sweeping motion, contacting any stimulated or stirred-up yellowjackets and bees around the nest opening. Then move forward to the nest opening and apply for 6 to 8 sec directly into the nest hole.

Target pest
YELLOWJACKETS AND BEES
Location
Outdoor

Apply directly to spiders and/or webbing. Before applying, consider the surfaces for potential staining or residue that spray may contact.

Target pest
SPIDERS (including Black Widow and Brown Recluse)

Worker safety

PPE required Avoid contact with eyes, skin or clothing. Wash thoroughly with soap and water after handling and before eating, drinking, chewing gum, using tobacco or using the toilet. Remove contaminated clothing and launder before reuse.

Timing & weather

Use restrictions 5