Pyrethroid mechanism of action diagram

How pyrethroid works β€” illustrated mechanism of action Β· PestControlBasics.com

🏠 OTC/DIY Active: deltamethrin 0.05% (dust formulation)

Delta Dust β€” Waterproof Deltamethrin Dust

Delta Dust is a waterproof deltamethrin dust for void, crack, and crevice treatment. The only EPA-registered insecticide dust labeled waterproof. Complete guide with application rates.

βš–οΈ Educational use only. PestControlBasics.com is not a licensed PCO. The label is the law under FIFRA. Always read your complete product label before mixing or applying. Full disclaimer β†’ | βš—οΈ Mixing Calculator β†’

🏷️ Brand Names β€” Same Active Ingredient

⚠️ Don't buy duplicates. All products below contain deltamethrin 0.05% (dust formulation) as the active ingredient. Buying two different brands is buying the same pesticide twice β€” they differ only in price, concentration, and formulation type.
Delta Dust Insecticide
Envu (formerly Bayer) Β· Waterproof dust Β· 0.05% deltamethrin
Professional & Consumer
D-Fense Dust SAME ACTIVE INGREDIENT
Control Solutions Β· Dust Β· 0.05% deltamethrin
Professional

🎯 Target Pests

βœ“Cockroachesβœ“Bed Bugsβœ“Antsβœ“Wasps and Yellow Jackets (void nests)βœ“Carpenter Beesβœ“Silverfishβœ“Earwigsβœ“Centipedesβœ“Millipedesβœ“Stored Product Insects

πŸ”¬ How It Works

Delta Dust contains the same active ingredient as Suspend SC (deltamethrin) but in a dust formulation with a critical advantage: waterproof formulation. It is the only EPA-registered insecticide dust that remains effective after getting wet β€” making it ideal for crawl spaces, attic vents, outdoor wall voids, and other areas where moisture exposure is likely.

The dust particles cling to insects' bodies and legs as they walk through treated areas, delivering the pyrethroid through contact. Particularly effective applied directly into wasp or yellow jacket nests in wall voids.

βš—οΈ Mixing & Application Rates

Dry dust β€” apply with bellows duster. No dilution needed.

Void injection β€” wasps/yellow jackets
2–3 puffs per nest entrance
Apply at night when wasps are inactive. Inject directly into the nest entrance using a bellows duster. Delta Dust's waterproof property makes it ideal for outdoor nest voids that experience weather exposure. Seal the entry after 48 hours (after activity ceases).
Cockroach void/crack treatment
Light to moderate dusting
Apply behind refrigerators, under dishwashers, inside wall voids via outlet covers. Delta Dust is preferred over non-waterproof dusts in areas with potential moisture (under sinks, in bathrooms).
Crawl space perimeter
Light dusting on horizontal surfaces
Apply around perimeter and entry points. Waterproof formulation maintains effectiveness through moisture fluctuations in crawl spaces.
Example
0.5 oz
per gallon
βš—οΈ Mixing Calculator
Enter your sprayer size and target rate β€” get the exact amount to pour. Backpack, hand sprayer, hose-end, or skid unit.
Open Calculator β†’

⚠️ Safety & Precautions

  • Pyrethroid β€” toxic to cats when wet; toxic to fish and aquatic invertebrates
  • Wear N95 mask during application
  • Do not apply to food contact surfaces
  • Avoid inhaling dust during application

πŸ“„ SDS / Label Resources

Delta Dust SDS available from Envu. D-Fense Dust (Control Solutions) is a generic equivalent at the same 0.05% deltamethrin concentration.

πŸ“„ CDMS Label Database πŸ›οΈ EPA Label Search

❓ Frequently Asked Questions

Q: Is delta dust safe for pets?
Follow the product label. Keep pets out of treated areas until completely dried (2–4 hours for sprays). Once dry, treated surfaces pose minimal risk to dogs and cats.
Q: Can I use delta dust indoors?
Check the specific product label β€” formulations vary. Baits and dusts often have indoor labeling; concentrates and granulars are typically outdoor.
Q: How long does delta dust last after application?
Residual varies by formulation, surface type, weather, and UV exposure. Indoor applications last longer than outdoor. Check the product label for re-application intervals.
Q: What should I do if exposed?
Remove contaminated clothing, wash skin with soap and water. For eye contact, rinse 15–20 minutes. For ingestion or severe symptoms, call Poison Control (1-800-222-1222). Have the product label available.

πŸ“‹ Safety Data Sheet (SDS)

πŸ“‹

Delta Dust β€” Safety Data Sheet

View the official SDS document for this product directly on the CDMS label database.

Delta Dust Safety Data Sheet page 1
πŸ“„ Delta Dust β€” Safety Data Sheet Β· View the complete SDS document above or download below
βš–οΈ Educational use only. PestControlBasics.com is not a licensed PCO. The label is the law under FIFRA. Always read your complete product label before mixing or applying. Full disclaimer β†’ | βš—οΈ Mixing Calculator β†’
πŸ“š Sources: EPA Pesticide Labels Β· NPIC Pesticide Info
Published: Jan 1, 2025 Β· Updated: Apr 7, 2026
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Reviewed by Derek GiordanoContent reviewed by a licensed pest management professional and cross-referenced against EPA, university extension, and manufacturer technical data. Last reviewed: April 2026.