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Precor® IGR Concentrate

Featuring the active ingredient (S)-methoprene, Precor® IGR Concentrate effectively breaks the flea’s life cycle. This formulation prevents flea infestations and provides residual flea control. Zoëcon’s Precor® IGR Concentrate controls adult and pre-adult fleas (95% off flea populations).

Active Ingredients:

    (S)-Methoprene (CAS #65733-16-6) 1.2%


Fleas and other listed pests


Apply Precor® IGR indoors to flea harborages, including but not limited to carpet, furniture, pet bedding and throw rugs. When treating upholstery, test for staining in an inconspicuous location.


  • Precor® Insect Growth Regulator prevents flea emergence for up to seven months
  • Provides professional flea control without disrupting household activities
  • Heavier-than-air molecules go deep into the base of carpets and upholstery
  • Can be tank mixed with adulticide for more severe infestations

Available Product Sizes

  • 10x1 oz control pack
  • 16 oz bottle
EPA Reg. #2724-352
Precor IGR Concentrate for residual flea control with (S)-Methoprene; insect growth regulator prevents infestation with professional flea control. Zoecon