Bayer Delta Dust insecticide 1 lb with puffer hand duster — deltamethrin, long‑lasting up to 8 months

Bayer Delta Dust is a one‑pound residual insecticide dust containing deltamethrin, supplied with a puffer hand duster to treat crawling and flying pests for up to eight months when undisturbed.

Delta Dust combines a proven pyrethroid active ingredient (deltamethrin) with a free‑flowing, odorless dust formulation designed for crack, crevice and void applications. The product resists moisture and staining, does not clump when used correctly, and can be applied with the included rubber‑topped puffer bellow hand duster for precise, low‑volume placement. Typical targets include bedbugs, carpenter bees, wasps at nesting sites, and many crawling insects that contact treated surfaces.

How should I prepare and load the hand puffer duster?

Proper filling ensures an even, thin application and reduces clogging or messy overapplication. Fill the duster between half and two‑thirds full to leave air space for the dust/air mixture, and replace the black rubber cap after loading for controlled puffing.

• Fill only 50–66% of the duster chamber to allow adequate air volume.
• Keep the black rubber cap in place; remove it only to refill or clean the nozzle.
• Shake between squeezes so dust remains suspended and dispenses evenly.
• If nozzle clogs, unscrew the rear rod and clear obstructions carefully.

How do I apply Delta Dust safely and avoid overuse?

Apply very thin layers; you should barely see dust coming from the nozzle when the duster is used correctly. Pull the nozzle away from the treated crack or surface before releasing the squeeze to avoid drawing lint, moisture or debris into the duster, which can cause lumping or clogging.

• Gently squeeze the bellow to emit a fine, controlled stream of dust.
• Pause and slightly shake the duster between squeezes to redistribute dust.
• Keep applications to cracks, crevices, voids and targeted surfaces—avoid visible heaps.
• Clean the nozzle rod if you notice restricted flow or clumping.

What pests and situations is Delta Dust appropriate for?

Delta Dust is formulated as a residual treatment for a broad range of crawling insects and certain nesting or entering flying pests when applied to contact points. It’s especially useful in tight spaces where liquid sprays are impractical or where a long‑lasting barrier is desired.

• Effective for carpenter bee nest entrances and wall voids where bees tunnel.
• Useful for bedbug harborages along mattress seams, baseboards and frame voids.
• Helpful for wasp nest perimeters and other nest entry/exit points when used at labeled spots.
• Suitable for many crawling insects when applied to baseboards, cracks and voids.

What are the product’s storage and surface characteristics?

Delta Dust is odorless and formulated not to stain or absorb moisture, making it suitable for many indoor and protected outdoor locations when used according to label directions. The dust is engineered to remain free‑flowing and resist lumping under recommended handling; however, preventing debris and moisture entry into the duster prolongs performance.

• Odorless, non‑staining dust for discreet applications.
• Does not absorb moisture when kept in a dry environment.
• Long‑term residual activity—label indicates up to eight months if left undisturbed.
• Keep container sealed and store in a cool, dry place away from children and pets.

Who is this for: Delta Dust with the included hand puffer duster is intended for homeowners, property managers and pest control professionals who need a precise dust application for cracks, crevices, voids and nest entrances. It’s well suited to situations where a long‑lasting residual is desired and where liquid applications are impractical. Always read and follow the product label for proper application rates, safety precautions and site restrictions before use.