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Precor IGR Methoprene

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Precor IGR Concentrate is birth control for fleas. It has a 6 month residual indoors and has no odor. 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).

Target Pests

Precor IGR Concentrate targets flea eggs and larvae.

For Use In

Precor IGR Concentrate can be applied wherever fleas are found or may be harboring.


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

Coverage Area

Each finished gallon of Precor IGR Concentrate will cover approximately 1,500 square feet.

Time to Kill

Precor IGR Concentrate does not kill insects it is designed as a birth control to stop normal development of adult fleas.

Mix Rate

Apply at a rate of 1 oz per 1 gallon of the diluted spray solution per 1500 sq ft of surface area with any low pressure sprayer with a fan tip that is typically used for indoor applications.

Prevents adult flea emergence (by preventing flea eggs and larvae from maturing) for up to 7 months as long as carpet is not shampooed or steam cleaned. This means if a flea egg drops off of infected dog, flea egg will not develop. 3 year shelf life.

Active Ingredient

Methoprene 1.2%

How To

Designed to stop the development of adult fleas, Precor IGR should be mixed with an insecticide that will provide the knockdown of fleas.

Precor IGR Methoprene

Product Q & A

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Can precor agr methoprene be used on dogs to kill fleas?
A shopper on Sep 8, 2017
BEST ANSWER: Precor IGR is not labeled for this type of application, we do sell Petcor which contains the active ingredient Methoprene. The Petcor is meant to be applied to pets and works great! https://www.solutionsstores.com/petcor-flea-spray-methoprene

Customer Reviews

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Precor IGR
My cat brought home fleas and so my dog got them. I sprayed the whole house with Precor IGR. I used this in combination with flea pills for the animals. Also using flea killer in addition, to kill existing fleas works better/faster but I don't like to use pesticide if I don't have to. I quarantined the animals in the kitchen till the fleas were gone. Also did lots of vacuuming.
October 7, 2014
I have had good results with this product in helping control flea eggs.
June 13, 2010

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