Pyrethroid mechanism of action diagram

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

🌿 Natural/Organic Active: pyrethrins (botanical insecticide)

Pyrethrin Aerosols β€” PT 565, CB-80, PyGanic

Pyrethrin aerosols provide rapid knockdown of flying insects. PT 565 Plus XLO, CB-80, and Riptide are professional products. PyGanic is OMRI organic. Complete guide to types and when to use each.

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 pyrethrins (botanical insecticide) as the active ingredient. Buying two different brands is buying the same pesticide twice β€” they differ only in price, concentration, and formulation type.
PT 565 Plus XLO
BASF Β· Aerosol β€” pyrethrin + PBO synergist Β· 0.5% pyrethrins + 4% piperonyl butoxide
Professional
CB-80 Extra SAME ACTIVE INGREDIENT
Control Solutions Β· Aerosol β€” pyrethrin + PBO Β· 0.5% pyrethrins + 4% PBO
Professional
Riptide Water-Based Pyrethrin ULV
PBI Gordon Β· ULV concentrate Β· 5% pyrethrins + 5% PBO
Professional
PyGanic Crop Protection EC 5.0 II
MGK Β· EC concentrate β€” OMRI organic Β· 5% pyrethrins
OMRI Organic β€” professional
Raid Flying Insect Killer
SC Johnson Β· Consumer aerosol Β· 0.1% pyrethrins + 0.5% permethrin
Consumer

🎯 Target Pests

βœ“Flying Insects (immediate knockdown)βœ“Mosquitoesβœ“Fliesβœ“Gnatsβœ“Mothsβœ“Exposed cockroaches and antsβœ“Wasps and bees (direct spray)

πŸ”¬ How It Works

Pyrethrins are naturally occurring insecticides extracted from chrysanthemum flowers. They work by disrupting sodium channel function in insect nerve cells β€” causing rapid paralysis and death. Pyrethrins are famous for rapid knockdown: flying insects die almost immediately on contact.

PBO (Piperonyl Butoxide) synergist: Most professional pyrethrin aerosols include PBO, which inhibits the enzymes insects use to detoxify pyrethrins β€” dramatically increasing efficacy. PyGanic (OMRI organic) does not contain PBO, making it less potent but organically acceptable.

Short residual β€” by design: Pyrethrins break down rapidly in UV light and air. This is both a limitation (no lasting residual) and an advantage (rapid degradation, safe re-entry).

βš—οΈ Mixing & Application Rates

Aerosols are RTU. Riptide and PyGanic are concentrates requiring dilution for ULV or mist blowers.

Indoor flying insect flush/knockdown (aerosol)
Ready to use β€” 1–2 second spray
PT 565 and CB-80 are equivalent products. Use for immediate knockdown of exposed insects, flushing cockroaches from hiding, and knocking down flying pests. No lasting residual β€” follow with a residual product for sustained control.
Space spray / misting (Riptide)
3.2–6.4 fl oz per gallon (depending on application)
Dilute in water and apply with cold fogger or mist blower. Close space, spray, ventilate 15+ minutes before re-entry. Effective for event mosquito control and indoor flying insect knockdown.
PyGanic EC 5.0 (organic foliar)
4.5–18 fl oz per gallon
OMRI listed for certified organic production. Dilute in water and apply to foliage for aphid, thrips, and flying insect knockdown. Much shorter residual than synthetic alternatives β€” reapply more frequently.
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

  • Toxic to cats when wet β€” keep cats out of treated areas until dry
  • Extremely toxic to fish, bees, and aquatic invertebrates
  • Short breakdown time: typically safe for re-entry once dry (15–30 minutes)
  • PBO synergist extends activity but also mammalian exposure time
  • Apply in ventilated spaces β€” avoid respiratory exposure during application

πŸ“„ SDS / Label Resources

PT 565 SDS from BASF. CB-80 SDS from Control Solutions. PyGanic SDS from MGK. All available on CDMS and manufacturer websites.

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

🌿 Environmental & Ecological Impact

🐝 Bees / PollinatorsHIGH
🐟 Fish / Aquatic LifeVERY HIGH
🐦 BirdsLOW
πŸ• Mammals / PetsLOW
🦐 Aquatic InvertebratesVERY HIGH
πŸ’‘ Natural but highly toxic to aquatic life and bees. Breaks down rapidly in sunlight (hours). Short environmental persistence.

πŸ”„ Alternatives & Related Products

Same chemical class or different approaches to the same pests.

πŸ”„
Azadirachtin
Same class: Botanical
↔️
Boric Acid
Different approach: Inorganic
↔️
Methoprene
Different approach: IGR

❓ Frequently Asked Questions

Q: Is pyrethrin 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 pyrethrin 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 pyrethrin 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“‹

Pyrethrin Aerosols β€” Safety Data Sheet

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

Pyrethrin Aerosols Safety Data Sheet page 1
πŸ“„ Pyrethrin Aerosols 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
🔮
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.