Fast Free Discreet Shipping in 2 to 5 days


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.,


How It Works Precor® IGR Concentrate is an important element of Integrated Pest Management (IPM), because it controls the pre-adult fleas that make up 99% of a typical flea population. Only Precor IGR's molecules move to the places pre-adult fleas live, like the base of carpet fibers and between furniture cushions - in short, the sources of a flea infestation. Precor IGR targets fleas in the egg and larval stages of development. As a result, pre-adult fleas cannot develop into adults to produce new infestations of breeding, biting adults.

Coverage Area

1 ounce covers 1,000 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

1 ounce of Precor to 1 gallon of water.

Active Ingredient

Methoprene 1.2%

How To

Prepare a diluted spray solution with a final (S)- Methoprene concentration of approximately 0.007%, by adding 1 oz of PRECOR to 1 gallon of water. Partially fill the mixing container with 1/2 gallon of water, add PRECOR, shake well, and then add the remaining 1/2 gallon of water. Shake well before each use. When tank-mixing, follow the directions above except add the product to tank mix first, agitate, and then add PRECOR, agitate and complete filling of spray tank, and agitate once more.

Apply at a rate of 1 gallon of the diluted spray solution per 1000 sq ft of surface area with any low pressure sprayer with a fan tip that is typically used for indoor applications. Treat all areas harbo0ring fleas, including carpets, furniture, pet sleeping and bedding areas, and throw rugs. Treat under cushions of upholstered furniture. Avoid contact with treated surfaces until dry

Precor IGR

Product Q & A

Solutions ()

Precor IGR

IGR Concentrate that acts on the immature life stages of the flea, preventing the adult flea from developing. Effective, long-lasting indoor control of pre-adult fleas for up to seven months
Product Q & A
Sort by
Most Recent Questions
GO | Reset
Expand all
Be the first to ask a question about this product
* Nickname:

* Your Answer:

Sign Up for Newsletter

Answer this Question
Hide the Form
Ask a New Question
* Nickname:

* Your Question:

Notify me by email when answer received

Sign Up for Newsletter

Add Question

Customer Reviews

  • Precor IGR
    By A.Naqvi on 10/7/2014
    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.


  • Precor IGR
    By David Daniels on 6/13/2010
    I have had good results with this product in helping control flea eggs.



Need Help? We thought you would never ask!

Call us at (888) 523-7378

Se habla español

Mon-Fri 8am-5pm  

Receive a reply in less than 1 hour
(during business hours)

Follow us

* Required Fields