1. Home
  2. Products
  3. Space Treatments
  4. Pyronyl™ UL-300 Oil Concentrate

Pyronyl™ UL-300 Oil Concentrate

This dual-synergist, pyrethrin insecticide is an ideal fly control and mosquito control solution. Pyronyl™ UL-300 features pyrethrin, piperonyl butoxide (PBO) and N-octyl bicycloheptene dicarboximide for the quick kill and flushing action of flying and crawling insects.

Active Ingredients:

  • Pyrethrins (CAS #8003-34-7) 3.0%
  • Piperonyl Butoxide, Technical (CAS #51-03-6) 6.0%
  • N-Octyl Bicycloheptene Dicarboximide (CAS #113-48-4) 10.0%


Mosquitoes, flies and other listed pests


Zoëcon’s Pyronyl™ UL-300 can be applied diluted and undiluted as an indoor spray, or undiluted as an outdoor ground applications. Approved for pest control in food handling facilities as well as on-animal treatments as a livestock fly spray.


  • Dual-synergist formulation provides flushing action
  • Provides effective control of roaches
  • Approved for use around containers of stored food

Available Product Sizes

  • 1 gal bottle
  • 55 gal drum
EPA Reg. #655-501
Pyronyl UL-300 Oil Concentrate, a Pyrethrin insecticide, is used for fly & mosquito control in food handling areas. Zoecon & Central Life Science

Pest Fact:
The word "mosquito" is Spanish for "little fly" and reportedly started in the 16th century.

Pest Fact:
Horseflies can be as large as 1 1/4 inches in length.