Precor IGR Concentrate

$6.70 - $52.32

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4.5 out of 5 stars Rating: 4.6

42 Reviews | 40 Q&A

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{ $6.70 $50.50 $52.32
  Size/Description Price/Ea. Qty
Precor IGR Concentrate bottle (1 oz.) $6.70
Precor IGR Concentrate - Box (10 x 1 oz. bottles) box (10 x 1 oz. bottles) $50.50
Precor IGR Concentrate - 16 oz. bottle 1 pint (16 oz.) $52.32
Total Price: $0.00


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For large order quotes, please call us at 1-866-581-7378.

Precor IGR Concentrate

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 produce new infestations of breeding, biting adults. PREVENTS ADULT FLEA EMERGENCE FOR 7 MONTHS.

For control of active flea infestations, this product works best when combined with an adulticide such as Suspend SC or Demize E.C. which will help to provide quick knockdown of adult fleas.

See our entire selection of professional IGRs.




Precor® IGR acts on the immature stages of a flea’s life cycle. Flea eggs deposited on or flea larvae crawling onto treated surfaces will not develop into adult fleas. Existing adult fleas and flea pupae are not affected and thus, Precor® IGR Concentrate is generally used in conjunction with an approved insecticide labeled for adult fleas. Effective, long-lasting indoor control of pre-adult fleas - up to seven full months. Mix with water to make 1 gallon of finished product. 1 oz.

To prevent infestations before they start, apply PRECOR prior to flea season.

When applied to surfaces where fleas are found, such as carpets, upholstered furniture, and pet sleeping areas, PRECOR prevents adult flea emergence for up to 7 months. Controlling fleas on pets is important to prevent introduction of adult fleas indoors. If fleas are a problem on pets, treat the pets with an effective EPA registered flea control product.

METHOD AND RATE OF APPLICATION
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 1500 sq ft of surface area with any low pressure sprayer with a fan tip that is typically used for indoor applications. Treat all areas harboring 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.

When applying to upholstery where staining could be a concern, apply dilution to a small inconspicuous location to determine if possible staining could occur. Generally, PRECOR will not stain areas that would not be stained by water alone.

Rating Snapshot

5 stars   35
4 stars   1
3 stars   3
2 stars   1
1 star   2

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Average Customer Rating
4.5 out of 5 stars (42)

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Most Helpful Customer Reviews
  • 37 of 39 people found this review helpful:

    5 of 5 stars  Precor works
    By Jesse in MO on 01/03/2009

    Precor IGR Concentrate is fantastic for keeping the fleas away. We would recommend it to anyone.

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  • 31 of 32 people found this review helpful:

    5 of 5 stars  Precor cure!
    By Zac in Western PA on 08/15/2010

    I bought this stuff as backup. I used a bunch of the Precor foggers along with some Ultracide to get rid of the flea issues I was having. They took care of the problem. I bought this stuff just in case I needed it. Precor does the job, folks! Fleas have been bad in my state this year. EVERYONE has had fleas. EVERYONE! I gave 2 bottles away for people to try. They used this as the IGR (like box states) and then used cheap store brand foggers to kill the adults. They also agree, this stuff works good for the non-adult stages.

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  • 26 of 26 people found this review helpful:

    5 of 5 stars  Flea Control
    By Dagmar in Blountville, TN on 08/01/2011

    I ordered this after I found an empty bottle left by a pest control company that I had been paying every month, but cancelled because I was not happy with their service. I looked Precor IGR up on the internet and was very pleased to know that I could order it myself and do the pest control. I already knew it worked and was happy that I could save money by doing it myself. I liked the free shipping and the customer service rep. was very helpful. I am glad I asked about the existing adult fleas as this product does not deal with that issue. She directed to another product to mix with Precor IGR and I am happy to say, both products work wonderfully. After my initial investment, I will be saving money and be free of fleas and ticks.

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  • 26 of 26 people found this review helpful:

    5 of 5 stars  Precor IGR Concentrate
    By Jc in Onalaska, Texas on 07/24/2011

    Had used Precor IGR Concentrate some years ago but it became unavailable at any of the outlets in this area. Precor is probably the absolute most effective product for the control of fleas. The area here is having a sand flea epidemic/infestation due to migration of sand fleas because of the severe drought conditions. It took three applications of Demize EC and Precor IGR to finally render the house flea free. The first application was a mixture of four ounces of Demize and two ounces of Precor in two gallons of water. The second and third application were done with two ounces of Demize and one ounce of Precor in one gallon of water. This was done on three successive Friday mornings. The fleas gradually disappeared, and haven't seen any fleas since.

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  • 21 of 22 people found this review helpful:

    5 of 5 stars  Precor combined with Suspend SC
    By T in Spencer, WV on 11/06/2011

    I used this product in combination with Suspend SC for a flea problem that many other products failed to eradicate. One application and no fleas or signs of fleas for over two weeks. One word of caution, there was a stout chemical odor for about an hour, but we just closed up the house and left for the afternoon and aired out upon return. Product worked fine for our family and we were all impressed that it actually performed as advertised.

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Most Recent Customer Reviews
  • 5 of 5 stars  a proven winner
    By Jim in Fort Wayne, IN on 11/28/2016

    don't try to treat for flea's without it

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Gotta have it !
    By Carl in Georgia on 10/28/2016

    If you want to kill insect pests and control them ; You must use a Insect Growth Regulator ,,,,, this is the one .....

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Very Happy
    By Sonya in Tipton, IN on 10/10/2016

    No scent, no noticeable residue, but most importantly, NO FLEAS!

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  great service
    By Ken in noyb on 09/23/2016

    good product, excellent delivery

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Flee's be gone
    By Kenneth in Arlington. Tx on 08/24/2016

    Works great easy to mix sprayed every inch of rugs . baseboard . Furniture .Floors everything . haven't seen another fee since .

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  A great product
    By Merrell in White Sulphur Springs wv on 08/17/2016

    I have used precore for years and always had great results , using this product with conquer worked. a product you can trust in and price that cannot be beat, i was stuck babysitting some dogs for a friend and was infested, today we never see any fleas , this is right company and the right price for all your pest control needs

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Precor igr concentrate
    By William in Rome Georgia on 07/18/2016

    I Sprayed it about 2 months ago along with another pesticide spray to kill the fleas, it took about a week but I haven't seen a flea sincešŸ‘šŸ‘šŸ‘

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  PRECOR USAGE
    By Wee in SCOTTSDALE,AZ on 03/14/2016

    I LOVE IT...I KNOW AFTER I USE PRECOR AND THE KNOCKDOWN, ONSLAUGHT, I CAN ACTUALLY LIVE LIKE A NORMAL PERSON AND GO OUT IN THE REST OF THE HOUSE WITHOUT WORRYING

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  • 3 of 3 people found this review helpful:

    5 of 5 stars  Use it on a schedule
    By Djeanis in Clearwater, FL on 10/28/2015

    And it will continue to work. Apply with the proper indoor use insecticide if you have an infestation. I use it every 6 months. Great product. My dog and cats love are very happy again (so is my wife).

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  • 3 of 3 people found this review helpful:

    5 of 5 stars  Our best defense
    By Robin in My airy NC on 10/09/2015

    Used this with a couple of other pre cor products and our war with fleas is coming to an end. You must follow directions to a t and it will work for you too fast shipping too

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Most Helpful Q&A's

10/18/2009 Andrea

QIs Precor IGR safe around dogs and cats?
I know you said Precor IGR is safe after it is dry. I have only hardwood floors in my house. Will it harm my dog who lays on them, even when it is dry?

ANo, once the Precor IGR is dry there is no worries about harm to a pet that lays on the surface.  Remember that Precor IGR is not an insecticide; it does not kill the insect.  It is a product that prevents adult insects from reproducing and is more of a pheremone type chemical that "messes" up the life cycle process of an insect.  It is very safe around children and pets and this is why it so popular to use these products in schools, day cares, and dog kennels.

48 of 49 people found this answer helpful.
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06/21/2010 Kristin

QHow long does is take Precor IGR Concentrate to dry after application?
I need to treat 2 bedrooms, living room, and kitchen. I don't have anyplace in the house to stay while waiting for the product to dry, so I've got to find someplace to go. The length of time it will take to dry will affect my choice of place to go.

ATypically most liquid applications take about 30 mintues to dry.  Specific times will vary based on temperature in the home and other factors. 

23 of 24 people found this answer helpful.
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09/28/2012 Jeff from Beckley, Wv

QIs it safe to apply Precor IGR to mattresses and box springs for flea control?

AYou do not need to actually spray the mattress and boxspring with Precor for it to effect fleas that may be hidden there. If you spray around the area where the bed is located the fleas will still be effected because of the unique molecules of this product. You should also thoroughly vacuum the bed to remove as many fleas eggs and larva as possible.

23 of 23 people found this answer helpful.
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08/03/2011 Lynn

QWhat product can I purchase from you that can be mixed with Precor which will kill adult fleas?

ATengard SFR would be a great choice for flea control. Tengard SFR is labeled for broadcast sprays on carpets and other flooring and can be mixed with Precor IGR for flea control.

19 of 21 people found this answer helpful.
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11/29/2009 Mary

QI got Precor IGR on my skin. Is Precor IGR safe?
I read that methoprene (Precor IGR) is not toxic to humans. And it is found in some foods. I got this all over my body even in my hair and did not wash it off. What is the worse thing that could happen to me? Will I go bald and my skin sag?

AMethorprene (Precor IGR) is a very safe product that is non toxic to humans.  I'm sure you have showered off by now.  There should be no issues or worries with the product, it just needs to be washed off.

19 of 21 people found this answer helpful.
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Most Recent Customer Questions

05/16/2016 Ashley from Silverdale, Wa

QIs there a way I can get this product in Washington State?
If not, what would your recommendation be?

A

Yes. We can ship the Precor IGR Concentrate to Washington State. In order to better assist you, can you please give us a little more information as to what you are treating for? 

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04/05/2016 Bobbi from Palmetto, Fl

QCan Precor IGR Concentrate be used on inside furniture that my cats lie on?
Is it safe

A

Yes, once the Precor IGR is dry there is no worries about harm to a pet that lays on the surface of any furniture.  Remember that Precor IGR is not an insecticide; it does not kill the insect- it is a product that prevents adult insects from reproducing.

1 of 1 people found this answer helpful.
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01/04/2016 Margaret from Minnesota

QWhat happens to the Precor IGR if it freezes in the truck on the way?
The temperature is in the 20's.

A

If Precor IGR freezes, as long it was only frozen for a very short period of time, and it goes back into a solution (the way it usually looks), it should be fine to use. If it appears that there are particles floating at the top, the product appears discolored, or the product will not go back into a solution, the product should be discarded and replaced.

3 of 3 people found this answer helpful.
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11/22/2015 Marty from Horseheads, Ny

QWhen using Precor IGR, can I place cats in another room in the house until it's thoroughly dry?
Basically what I'm asking is can I do one room (closed) at a time but keep cats in another room SAFELY. of course, I wouldn't let them reenter a sprayed room for at least 4 hours and I would open windows in sprayed room to help it dry.

A

Yes, removing the cats from the area treated with Precor IGR is a good practice. They can go into an area that has not been treated until the treated area dries completely. This generally takes 1-2 hours depending on how heavily you spray.

4 of 4 people found this answer helpful.
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11/20/2015 Carol from Tn

QCan we treat human bedding with Precor IGR Concentrate?
I know it is OK to treat pet bedding with Precor, but is it OK to treat my own bedding?

A

Precor IGR Concentrate should not be used on linens, clothing, or similar items or surfaces that would come into direct contact with skin. These items may be treated in a washer and dryer, or with a steamer. Please see our Flea Treatment Guide for more information.

3 of 3 people found this answer helpful.
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11/04/2015 Joseph from Carrollton, Ga

QCan you mix Precor IGR Concentrate with Conquer as a broadcast spray for fleas in carpet?

A

Yes, Precor IGR Concentrate is designed to be sprayed across carpets indoors and can be mixed with any indoor insecticide for fleas like the Conquer Insecticide for broadcast spraying and control. Please see our Flea Treatment Guide for more important information about treating for this pest.

7 of 8 people found this answer helpful.
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10/19/2015 Pcmedic

QIs Precor IGR Concentrate safe around birds?

A

Precor IGR Concentrate should be applied to the indoors only so it will not pose an issue for birds that are outdoors. If you have birds inside (they should be removed during application), it should not present a safety hazard to the bird as long as it used as directed on the product label and is completely dry before contact. If your bird has any health concerns you should contact your vet before use.

2 of 3 people found this answer helpful.
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09/13/2015 Dick from Denver Colorado

QMust I wash blankets if Precor concentrate gets on them?

A

Yes, if Precor or any insecticide got on any blankets or sheets used for sleeping on you would need to wash them before using them again. 

4 of 4 people found this answer helpful.
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05/29/2015 Rosie from New York

QCan I spray Precor IGR on my dog bed?
I'm going crazy with this fleas infestation. I'm going to try precor 2000 and I just need to know if is safe to spray the dog bed. I'm washing every day in hot water and drying for 30 + min also vacuum every day. Change the bed twice in 21 days. I'm so tired. Please help

A

Yes, Precor IGR Concentrate can be sprayed on pet sleeping and bedding areas. This is just a growth regulator so it will not kill any fleas. It will simply stop their lifecycle.

Another option is to use Ultracide. It is very effective flea control aerosol that provides immediate kill of adult fleas and prevents formation of new adults from eggs or larvae. Ultracide dries quickly and will eliminate flea problems for up to seven months. This can be used on pet bedding and pet resting areas, as well as various areas where there is a flea infestation. This treatment will be done every 14 days until you no longer see activity. Make sure that you are still vacuuming daily as well.

7 of 7 people found this answer helpful.
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05/17/2015 Tyler from Jackson, Mi

QBaby fleas back 2 weeks after
I applied Precor mixed correctly in a pump sprayer and applied throughout my home. It's been about 2 weeks since the application and I've seen 2 very small fleas today. The pets are all on a prescription flea tablet which is administered monthly, and before we applied Precor we've bombed twice, and applied Ortho Home Defense Max 3x throughout our entire home and treated our yard with a spray treatment. We've been battling fleas for 3 months. Why after two weeks are we seeing a new batch after applying an IGR?

AFlea elimination indoors can take 2-8 weeks depending on the level of infestation. Indoor flea control will require you to use a mix of insecticides and also mechanical control methods. We recommend using at least 2 products to control fleas; an insecticide such as Onslaught Insecticide and an insect growth regulator such as Precor IGR. You can usually find an insecticide and an insect growth regulator together in a aerosol flea product. After 14 days, you should reapply the aerosol or liquid products to the carpets, rugs and pet's resting areas to control any newly emerging immature fleas. Severely infested areas may require a 3rd or even a 4th treatment in 14 day intervals.

9 of 10 people found this answer helpful.
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