Outdoor & Yard / Products / Mosquito Fogger and Yard Spray (Pyrethroid-Based)

Mosquito Fogger and Yard Spray (Pyrethroid-Based) — outdoor safety profile

Elevated risk

Not medical, veterinary, or professional safety advice, and not a substitute for a qualified professional — consult one. Full disclaimer →

Outdoor mosquito foggers and yard sprays containing synthetic pyrethroids (permethrin, cypermethrin, bifenthrin).

What is this product?

Outdoor mosquito foggers and yard sprays containing synthetic pyrethroids (permethrin, cypermethrin, bifenthrin). Applied via thermal fogger, cold fogger, or hose-end sprayer. Pyrethroids are neurotoxic to insects and aquatic organisms, and are endocrine disruptors in humans. Spray drift affects neighboring properties and waterways.

What's in it

Click any compound name for its full safety profile, regulatory consensus, and exposure data.

Active Ingredient

Who's most at risk

  • Children — Developing endocrine and neurological systems, higher exposure per body weight

Red flags — when to walk away

  • Product used in enclosed or poorly ventilated space — Chemical exposure concentrations increase dramatically in enclosed spaces.

Green flags — what to look for

  • Third-party safety certification visible on packaging — Product has been independently tested to applicable safety standards.

Safer alternatives

  • Mosquito dunks — BTI) in standing water — targets larvae, safe for mammals
  • Citronella and essential oil repellents for personal protection — Safer alternative to conventional products
  • Fan-based mosquito deterrent systems — Safer alternative to conventional products
  • Habitat modification — eliminating standing water

Frequently asked questions

Who should be careful with Mosquito Fogger and Yard Spray (Pyrethroid-Based)?

Vulnerable populations identified for this product type: children.

Are there safer alternatives to Mosquito Fogger and Yard Spray (Pyrethroid-Based)?

Yes — consider: Mosquito dunks; Citronella and essential oil repellents for personal protection; Fan-based mosquito deterrent systems. See the Safer alternatives section above for details.

Sources (5)

Citations carried on this product's ALETHEIA record. A bracketed number in the text links to its entry here.

  1. ALETHEIA Safety Database — expert_curation
  2. EPA FIFRA / TSCA (as applicable) · USA — regulation
  3. California Proposition 65 · USA -- California — regulation
  4. US EPA Pyrethroid Reregistration Eligibility Decision — cypermethrin/deltamethrin/lambda-cyhalothrin/bifenthrin/cyfluthrin/fenvalerate/tau-fluvalinate/fenpropathrin; type I/II classification; aquatic toxicity; cat sensitivity; sodium channel mechanism; human paresthesia; buffer zones (2011) (2011) — regulatory (inherited from a compound record)
  5. ASPCA Animal Poison Control Center: Pyrethroid Toxicosis in Cats and Dogs — type I vs type II CS/T syndromes; extreme cat sensitivity (sodium channel/UGT deficiency); bathing decontamination; methocarbamol tremor control; cyproheptadine; lipid emulsion severe cases (2023) (2023) — veterinary (inherited from a compound record)

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Reference data, not professional advice. Aggregates publicly available regulatory and scientific information. Why we built ALETHEIA →