Gentrol IGR Concentrate travels deep into wall cavities, cracks and crevices, reaching the stored product pests that other treatments miss. Hydroprene, the active ingredient, prevents stored product pest larvae from progressing to the pupal stage of development, so the larvae die before they become breeding adults and future infestations.


Gentrol Concentrate should never be used to eliminate a roach population by itself.

Gentrol will not kill only prevents them from reproducing.

Use roach baits and roach sprays in conjunction with Gentrol Concentrate.


Active Ingredient: (S)-Hydroprene (CAS #65733-18-8) - 9%


Target pests: Roaches, Drain & Fruit Flies, Bedbugs, and Stored Product insects


For use in: Food & Non-Food areas


Application: 1 oz. per one gallon of water (Crack & Crevice, Spot, or Fogging)
*  Most effective when mixed with a liquid insecticide
* Roaches repeat every 4 months
* Bed Bugs repeat every 2 weeks
* Fruit & Drain Flies repeat every 2 - 4 weeks
* See label for complete application instructions


Yield: 1 pint (16 oz.) makes 16 gallons of solution