Precor IGR Concentrate

$6.70 - $52.32

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4.5 out of 5 stars Rating: 4.5

38 Reviews | 38 Q&A

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  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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Precor IGR Concentrate - 16 oz. bottle

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   31
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 (38)

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Most Helpful Customer Reviews
  • 33 of 35 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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  • 29 of 30 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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  • 25 of 25 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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  • 24 of 24 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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  • 19 of 20 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
  • 6 of 6 people found this review helpful:

    5 of 5 stars  Really Works
    By Connie in mt. pleasant sc on 08/12/2015

    My Husband used the Precor from the first time after we received it. We have been having problems with fleas since May. Our neighbors dog had been making a bed under our house, since then the dogs are gone but left their uninvited friends behind. We have tried everything we know to get rid of those pesty things. We called our pest control company three times. Still had fleas. We bombed twice, still had fleas. We used flea powder, still had fleas! We used another spray inspectize ,still had fleas. We even used home remedies such as soapy water and lights, lemon water and vinegar and lights even though it helped some we still had fleas. But we saw fast results when he sprayed with the Precor IGR! Have referred it to two other friends and will be ordering for the future. And no smell since i am highly sensitive to chemicals. Thanks, my level of stress is down now that we have these pests under control thank you thank you thank you

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  • 5 of 5 people found this review helpful:

    5 of 5 stars  Added Precor to Conquer Mix
    By Dan in San Jose, CA on 12/23/2014
    Verified Purchase

    I added an ounce of Precor IGR to the sprayer when I mixed the Conquer (2 0z.). The Conquer killed all the fleas immediately and I'm hoping the Precor does it's job and stops any eggs from maturing. So far, so good. No sign of fleas on the 3 cats or anywhere in the house for about a month now.

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  • 8 of 8 people found this review helpful:

    5 of 5 stars  The homeowner's "Missing link"
    By Will in Daphne, AL on 06/11/2013
    Verified Purchase

    You will likely never control a flea infestation with products from local home improvement stores--not without a monumental amount of effort. Precor IGR is the missing link in the homeowner's arsenal against an established flea infestation. Coupled with an adult flea killer, it helps to attack all stages of the flea life cycle. Thank you Domyownpestcontrol.com for providing me access to this wonderful insect growth regulator!

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  • 9 of 9 people found this review helpful:

    5 of 5 stars  Precor IGR
    By Gene in Camden, NJ on 10/21/2012
    Verified Purchase

    A few years back my entire house was loaded with fleas, where my cats would not walk on the floor. I heard about, and ordered Precor, that is after spending a lot of money on other methods, which did not work, and many years of misery, which killed two of my cats. Within about a week of so after using Precor, my house was flea free, and has remained that way ever since. I cannot voice enough praise for this product. I order it and give it to anyone who tells me they have a problem with fleas.

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  • 11 of 13 people found this review helpful:

    1 of 5 stars  Precor IGR Concentrate
    By Herbert in Houston, TX on 05/22/2012

    Has not worked as advertised. I mixed a little stronger than the instructions suggested and no go.

    Expert Response   Expert response:
    This person only purchased Precor IGR. Precor IGR is a growth regulator and does not kill any fleas. It is made to prevent fleas from maturing into reproducing adults. IGR's are meant to be applied with another product that will actually kill the adults. IGR by itself will not yield any immediate results and will not kill any adult fleas.

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  Precure
    By Californian in Cali on 05/04/2012

    The product works hands down follow the directions wear the safety gear the msds calls for read the directions and you will eliminate the problem for good also buy the preview 2000 aerosol to use over your floors if your not sure it will leave residue make on your nice hardwood floors test it on a small piece as long the floors are waxed should be ok just read the label

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  • 5 of 5 people found this review helpful:

    5 of 5 stars  works on fleas
    By Lp in mexia,texas on 04/08/2012

    worked before,works now, will work again. been using this stuff over 10{ten}years and recommend it to anyone.

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  • 5 of 5 people found this review helpful:

    5 of 5 stars  Will order again
    By Amelia in Tallahassee, FL on 03/31/2012
    Verified Purchase

    With a yard that is 50% sand, flea control on our Florida property is never ending. This product does it's job. Easy to mix and use, no unpleasant smell and no damage to fabric.

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  • 9 of 9 people found this review helpful:

    5 of 5 stars  No more fleas
    By Greg in Bangor, PA on 10/14/2011
    Verified Purchase

    Without a doubt - hands down - this is the BEST product on the market for your FLEA-FESTATION. Not only does it kill adult fleas, it kills their eggs and the residue keeps new fleas from infesting and making a home of YOUR home. You WILL NEED a MINIMUM of 2 treatments, spaced two weeks apart, to remove the initial infestation. I would recommend a third treatment, just to be safe, two weeks later. After that, it depends on your pet. If your pet spends a lot of time outdoors, you may need a treatment every 2 months. If, like in my case, you took in a stray that brought the little buggers with it, you may never need another treatment. I took in another stray - ended up letting my kid take it when he moved out. I did 3 treatments within a 6-week period, and was flea-free for the next three years.

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  • 6 of 8 people found this review helpful:

    3 of 5 stars  Precor Insect growth regulator
    By Mary in Cocoa, FL on 07/29/2010

    Seems this product works better than some but I still have to use it more than the label calls for.

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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.

43 of 44 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. 

20 of 21 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.

20 of 20 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 20 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.

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

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.

6 of 6 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.

6 of 6 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.

7 of 7 people found this answer helpful.
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10/10/2014 Wendy from Wakeman,oh

QOnce I mix Precor concentrate with water, how long will it last once it is mixed with water?
If I have left over solution, can I use it again in 3 months when I treat again?

APrecor Concentrate should be used within 24 hours of mixing the product.

7 of 7 people found this answer helpful.
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08/15/2013 Ellen from Rossville, Ga

QMy daughters home is crawling with fleas! She has bombed 2x to no avail. We need experienced help..
To tell us which product to purchase. The house is carpete, and fleas are in furniture. Precor was recommended but question is, which one for extreme flea infestation?

APrecor 2000 or Ultracide would be a good choice for indoor carpeted areas. Precor 2000 and Ultracide come ready to use, no mixing or equipment is needed and they contain both an insecticide for a quick knock down of biting adults and an insect growth regulator for control of developing flea eggs and larvae. Infested areas should be thoroughly vacuumed prior to product applications to help remove as much flea eggs, larvae and debris as possible and also to help stimulate larvae to change stages and come into contact with the product. You should continue to vacuum at least every other day for the next two weeks. Pets should be treated for fleas as well as the areas they spend a lot of time such as pet bed, kennels, carriers, couches, and moist shady areas where they spend time outside.

6 of 6 people found this answer helpful.
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04/27/2012 Dave from Pekin, Illinois

QCan you use Precor IGR outside in yard?
My wife is strict about useing insecticides in the yard or house. I just wanted to get started with an IGR outside which I thought would really help with fleas in the yard in a few weeks.

APrecor IGR is not photo-stable and cannot be used outdoors. We do carry Archer IGR and Martins IGR which are photo-stable and can be used outdoors.

11 of 11 people found this answer helpful.
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01/26/2012 Chuck from St.petersburg Florida

QWill Precor kill bed bugs and eggs on a bed mattress?

APrecor IGR is not labeled for bedbugs and may not be effective for this type of treatment. You should also note that Precor does not kill adult or juvenile insects of any kind. We recommend that you encase your mattress and boxspring with Protecta Bed encasements and you thoroughly and consistently treat the entire room with products that are labeled for bedbugs such as those contained in our bedbug kits.

11 of 11 people found this answer helpful.
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11/06/2011 Edward from Baltimore, Md

QAfter Precor IGR has been sprayed on all my floors, should I need to clean my floors to remove any residue?

AIf you mop the floors or steam clean the carpets where Precor has been applied you will be effectively removing any residual control you would have gotten from the application. We can tell you that fleas do not usually develop out in the open on hard floors so if Precor IGR was sprayed on hard flooring there should not be any issue with cleaning the area now.

7 of 8 people found this answer helpful.
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08/21/2011 Bb from Oakton, Va

QIs IGR safe to use with diatomaceous earth, Permetherin, and if so, what it the recommendation (instructions)?
With so many products out there, it is overwhelming, particularly when trying to figure out what can be used together and how to use them together in a safe manner. Toxic chemicals (particularly carcinogens) are pretty scary. While I do not own a pet and have never had flea problems before, I found 4 the other day. First time and have no idea how they got there. Is IGR safe to use with diatomaceous earth, Permetherin, and if so, what it the recommendation (instructions)?

AYou can safely mix Precor IGR with Permethrin and apply as a broadcast spray on carpets and under furniture. You can also use diatomaceous earth in areas listed on the product label in a home that has been sprayed with permethrin/Precor. Be sure to read and follow the product labels for best results. Also, vacuuming prior to the first treatment and every other day for 14 days following the flea treatment will help get rid of the fleas much faster than spraying alone.

10 of 10 people found this answer helpful.
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12/20/2010 Sue

QCan you get or sell a higher percentage of methoprene (closer to the 8.8%) as in Frontline Plus?
The methoprene is only 1.2% in your product, and the methoprene in Frontline Plus is a whopping 8.8%.

AThe formulations between structural/lawn insecticides vs. topical animal flea products are completely different. While the concentration in some flea products is quite high, the volume is quite low. There is no reason to use a higher concentration of IGR for insect control in the home. Manufacturers and universities have spent millions of dollars researching what concentration of methoprene works best in structures and yards to interrupt breeding cycles in certain insects. The concentration you see today is a direct result of that research. So the answer to your question is no, we cannot get a higher concentration than you have already found on our site. The only company that can get a higher concentration is the manufacturers that make the products.

10 of 11 people found this answer helpful.
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