HARRIS Boric Acid Roach & Silverfish Killer Powder, 32oz — Long‑Lasting Residual, Duster Included

HARRIS Boric Acid Roach and Silverfish Killer Powder is a long‑lasting, EPA‑registered powder treatment that attracts and eliminates roaches, palmetto bugs, water bugs and silverfish when applied in dry, out‑of‑the‑way spaces.

This 32oz formula combines food‑grade lure with boric acid powder and includes a handheld powder duster for precise placement. Designed for indoor use around baseboards, cabinets, appliances and crawlspaces, the product is intended to remain active for weeks as long as treated areas stay dry. The EPA registration and made‑in‑USA production offer traceability and compliance for home use.

How quickly will I see results after applying the powder?

Insects that contact the powder typically die within 72 hours. The lure helps pull pests out of hiding so more individuals pick up a lethal dose, and the residual powder continues to work on those that come later.

• Visible reduction in activity often within three days
• Residual control persists for weeks if kept dry
• Works on roaches, palmetto bugs, water bugs and silverfish

Where and how should I apply this product for best effect?

Apply the powder in thin, targeted lines or light puffs where pests travel or hide—under sinks, behind appliances, in wall voids and along baseboards. Use the included powder duster with its extended straw to reach tight or elevated spots without disturbance.

• Focus on cracks, crevices, pipe penetrations and appliance edges
• Keep the powder dry; avoid application in wet areas or where it may be disturbed
• Reapply only when the powder is removed or no longer visible

Is this product safe to use around people and pets?

The formulation is EPA registered for indoor household use; however, it should be applied according to label directions to minimize exposure. Keep treated surfaces inaccessible to children and pets, and avoid applying to surfaces where food is prepared or consumed.

• EPA‑registered for home use (registration No. 3‑10)
• Use label instructions for safe placement and exclusion zones
• Store the product securely after use to prevent accidental contact

What makes this powder different from other insecticides?

This product pairs boric acid’s residual lethality with a food‑grade lure to draw pests out of hiding, increasing contact rates. The included powder duster makes placement straightforward in hard‑to‑reach areas where sprays or baits may be less effective.

• Food‑grade lure attracts hiding pests for higher effectiveness
• Powder form provides long residual control in dry areas
• Handy duster included for precise, low‑mess application

Who is this for: HARRIS Boric Acid Roach and Silverfish Killer Powder is suited for homeowners, renters and maintenance pros who need a dry, residual insect control option for indoor cracks, crevices and voids. It benefits those who prefer a non‑spray approach, require targeted application in tight spaces, or want an EPA‑registered product with an included applicator for easier placement. Always read and follow label directions for safe, effective use.