Petcor Flea Spray

$18.25 - $159.55

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4 out of 5 stars Rating: 4.1

71 Reviews | 24 Q&A


{ $18.25 { $17.30 $159.55
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Petcor Flea Spray bottle (16 oz)

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Petcor Flea Spray - CASE (12 bottles)Petcor Flea Spray - CASE (12 bottles) case (12 bottles)

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You May Also Need:

Indoor Flea and Tick Kit Indoor Flea and Tick Kit
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Petcor Flea Spray

Petcor Flea Spray contains Precor IGR, an insect growth regulator that targets fleas in the egg and larval stages of development. As a result, pre-adult fleas cannot produce new infestations of breeding, biting adults.

Tips:  Each bottle contains about 120 pump sprays. Use 1 to 2 pumps per pound that your pet weighs. Start at the head and work your way back to the tail rubbing it in as you go.

Contains natural pyrethrins to immediately kill adult Fleas, Ticks and Lice, plus Precor IGR, an insect growth regulator that targets the egg and larval stages of development for 63 days after application. Approved for use on dogs, cats, puppies and kittens (Not to be used on puppies and kittens under 12 weeks of age). The mobility of dogs and cats makes it difficult to treat all potential areas of flea infestation. So it's important to consider a flea control formulation that goes where they do - especially one that targets pre-adult fleas, the source of reinfestations.



A light even coverage of the hair coat will provide effective flea control. For best penetration, ruffle the coat while spraying against the natural lay of the hair. Cover animal's eyes with hand. With a firm fast stroke, spray head, ears, and chest. With cloth, rub into face around mouth, nose, and eyes. Then spray the neck, middle and hind quarters, finishing with legs and tail last. Avoid spraying rectum and genitals. Apply at the rate of 1 or 2 squeezes of the trigger sprayer per pound of body weight. For larger dogs, spray until damp, not saturated. Do not allow animals, cats in particular, to become chilled. Repeat every two months, if necessary.


Make sure spray thoroughly wets individual ticks.



Leaving the eyes, nose, and mouth exposed, treat puppies and kittens weighing less than three pounds by wrapping the animal in a towel that has been lightly sprayed with PETCOR® Flea Spray, for 5 to 10 minutes. Or lightly spray a brush or cotton ball and work thoroughly into the hair coat. Fleas may then be removed from the coat by picking or combing. Puppies and kittens over three pounds may be treated the same as dogs and cats as described above. Repeat every two months, if necessary. Do not allow animal to become chilled. Do not use on puppies and kittens under 12 weeks of age. Consult a veterinarian before using this product on debilitated, aged, pregnant, nursing, or animals on medication.

Rating Snapshot

5 stars   42
4 stars   12
3 stars   6
2 stars   2
1 star   9

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Average Customer Rating
4 out of 5 stars (71)

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Most Helpful Customer Reviews
  • 111 of 113 people found this review helpful:

    5 of 5 stars  Petcor is the absolute best
    By Roxanne in Orlando, FL on 05/20/2009

    I have been fighting with fleas on my 4 lb Yorkie for a year. I treat the house with Conquer; I treat the yard with Talstar; I have used Advantix and Frontline Plus religiously every month and sometimes twice a month. Nothing works. Poor little girl has had more baths in an attempt to drown the fleas. I pick through her a couple times of day trying to free her of fleas. She scratches so much, her hair is broken off, especially on her face. The DIY Pest control place told me to try Petcor Flea Spray. As soon as a couple little spritzes hit Angel, I could see the fleas scrambling to her head, eyes and nose area. That was two days ago and I have not seen a flea since. Angel is no longer scratching herself. Her big brown eyes look at me saying, "oh mommy, thank you so much for making me so comfortable."

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  • 92 of 97 people found this review helpful:

    5 of 5 stars  Petcor
    By William in Ohio City, Ohio on 01/05/2009

    I used to work for a very large pest control company. We issued Petcor Flea Spray to all our flea customers, and I used it on my own pets. This is by far, the absolute best treatment for fleas that you can apply yourself. And for the price, you can't beat it! Get a professional result at a do-it-yourself price!

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  • 49 of 50 people found this review helpful:

    3 of 5 stars  good stuff, however...
    By Joanna in shelton ct on 08/09/2011
    Verified Purchase

    I have three cats and two of them reacted pretty good with this spray. It got rid of most of the fleas right away, need to keep applying ever week but for the most part, pretty good. My third, however, had that allergic reaction that they warn you about. She was drooling, ear and paw twitches, it was scary. This lasted a few days. At least they warn you that it is harmless (didn't look it) and temporary. I know it's not meant for other then pets but I found it worked really well spraying directly on carpets.

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  • 39 of 39 people found this review helpful:

    4 of 5 stars  Finally something worked
    By Jon in Arcadia, IN on 08/22/2010
    Verified Purchase

    Must read and follow instructions. Has a very strong odor at first so you will be inclined to use less, however after it dries the smell goes away. I used it but did not apply enough.

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  • 34 of 38 people found this review helpful:

    3 of 5 stars  Better than most
    By Joe in Ocala FL on 06/08/2010
    Verified Purchase

    Petcor has excellent knock down on fleas but not the residual action as claimed on the bottle

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Most Recent Customer Reviews
  • 3 of 5 stars  not too reliable
    By Ed in NOYFB on 12/03/2017

    Its been over a month and i still see fleas in our home after using this product but it was worth the try

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  • 5 of 5 stars  God Send
    By Phyllis in Sunbury, oh on 10/11/2017

    Had the worst problem with fleas this year in Ohio. Tried all sorts of natural products first but the fleas won. I used the premises spray after vacuuming and used this spray on each animal. It took a couple of weeks before there was a dramatic reduction in the number of fleas. But I am now down to 10 or fewer fleas per animal per day. I'm doing a repeat of both sprays as soon as it is recommended in the instructions. I now have part of my day back since I'm not combing each animal multiple times a day to get the fleas off.

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  • 5 of 5 stars  Great oroduct
    By Brian in Brunswick, ga on 09/23/2017

    Killed fleas on contact. The best stuff found so far.

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    By Nancy in Berkeley Springs, WV on 08/04/2017
    Verified Purchase

    I have 3 dogs and this summer has been the worse time for fleas. I have tried everything nothing work. My poor dogs suffered so bad scratching like crazy. I received this flea spray on Friday at 4 pm I started spraying my dogs 5 minutes after I received it .. The fleas were dropping like crazy I could not believe how fast this stuff works. Let's see what tomorrow brings and how many fleas are still alive. I will be reordering this spray.. Next to do is my house..

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  • 1 of 1 people found this review helpful:

    5 of 5 stars  Petcor Flea Spray
    By Ben in Griffin on 07/15/2017

    Easy to use and seems to work on my outdoor cat. I sprayed her as directed and even though she still scratches and preens herself often (just female I guess) I have not seen any fleas on her. I also spray her sleeping area and bedding.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Petcor
    By Caroline in Woodbine, GA on 05/30/2017

    I have used Petcor for 20 years. It is the only spray I have found that can safely be used on orphaned animals still on the bottle. I have used it on infant animals through adult animals. It kills on contact and keeps killing afterwards.

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  • 2 of 2 people found this review helpful:

    5 of 5 stars  Love this stuff
    By Erica in Seabrook TX on 05/01/2017

    This stuff kills fleas instantly! I love it and recommend it to EVERYONE that may have a flea issue!

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  • 5 of 5 people found this review helpful:

    5 of 5 stars  None!
    By Jim in beaverton on 12/20/2016

    I had used several different products, even above recommended dosage , for months with little or no affect. Once with Pector and in a few days they are all gone, and my dog is happy too!

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  • 6 of 6 people found this review helpful:

    2 of 5 stars  Don't use on cats
    By A in Boston, Maine on 12/12/2016

    Does it kill fleas? Yes it does. Cats really don't like it though and I mean REALLY don't like it. It has a very strong smell which I can only imagine as torture for the cat's sensitive smell. It has no residual action so after a day or two the fleas in their environment have jumped on the cat with no effect to them.

    Expert Response   Expert response:
    Thank you for your comments and your business! If you do plan to use Precor for cats, it is recommended to wear gloves and to use a cloth to apply the Precor on the animals, rather than spraying the Precor directly on them. You can browse our other Cat Flea Products here:

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  • 4 of 4 people found this review helpful:

    5 of 5 stars  Petcor does work!
    By Leslay in Ladson on 10/13/2016

    This product works. I've used it for years as a professional pest control technician. As long as you vacuum frequently, treat your pets with flea meds, spray your yard, you will be happy with results.

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Most Helpful Q&A's

08/10/2009 Mike

QDoesn't spraying Petcor Flea Spray on a cat cause problems since cats are constantly cleaning themselves?

ANo.  Petcor Flea Spray is only a contact kill and does not leave a residual for any long period of time.  Also, this product uses pyrethrin to kill the fleas, which is a natural plant extract from the chrysanthemum plant.  It is not any more harmful than the flowers and bugs most cats eat in the backyard already.

24 of 29 people found this answer helpful.
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12/17/2009 Cathy

QCan I use Petcor if I have already applied Frontline Plus to my dog?
Also, if I use Ultracide indoors, what should I use outdoors (concrete & wood deck)?

AYes, Petcor Flea Spray can be applied after Frontline or Advantage.  This is because Petcor is a contact kill only and is for immediate results.  Petcor will kill on contact but will not protect long term like Frontline or Advantage, so you can use the Petcor as needed.  Ultracide is a great choice for indoor use.  For outdoor use we recommend using a combination of Conquer and Archer IGR together in the same one gallon hand pump sprayer.  They provide a great one, two punch and is our most popular sellers for outside flea control.

12 of 12 people found this answer helpful.
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10/17/2013 Kellie from Great Falls, Va

QHow soon after applying Petcor Flea spray can I bath my dog?

AThe dog should be bathed prior to application of Petcor but you can give the dog a bath as early as a week after you apply the product if needed.

7 of 7 people found this answer helpful.
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07/06/2010 Denise

QWhat order do I treat?
I have ordered the Petcor spray and the indoor flea kit. Should I treat one room and then put the cats in that room, then treat the rest of the house? What are your suggestions?

AIt really will not matter what order you do the treatment in as long as you do the treatments on the same day. Any adult fleas that jump off of the cats will come in contact with the deposits of the Ultracide and the Flea Stoppers within short order. The cats must be out of the area while you apply the Ultracide but can return as soon as the application is dry.

7 of 7 people found this answer helpful.
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11/15/2014 Angie from Spring Hill Fl

QI just got the Petcor, what I want to know is can I bathe my cat first with a flea shampoo?
and then spray him with the Petcor or will that be to much. She has been scratching and made herself bleed so I want to clean her up.

AYes, you would want to bathe your pet before applying the Petcor Flea Spray to get as many fleas off of her as possible. When applying Petcor to cats, its often advised to spray the product on a towel first and then rub down the cat with the towel to get it on its body and fur.

3 of 3 people found this answer helpful.
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Most Recent Customer Questions

08/25/2017 Stella from Decatur, Ga

QIs Petcor Flea Spray safe as a mosquito repellent for cats?
For instance, to dab it onto the cat's ear with a cotton ball. This is for a cat who has no flea problems, just mosquitoes biting his ears.


No,†Petcor Flea Spray†is only labeled for fleas, ticks and lice.

We would recommend using†Wondercide Flea & Tick Control Pets & Home - Cedar to kill and repel mosquitoes on cats.†Spray generously on body, including belly, tail, and legs.†Spray into hands or cloth to apply to face & ears. This product will last for up to two weeks but can be applied daily as needed.†

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12/30/2016 Hannah from Natchitoches

QCan I use Petcor on my cat who is nursing 4 week old kittens?


Per the product label, it is recommended to consult with your vet before using Petcor Flea Spray on a cat that is nursing. It is safe to use Wondercide Flea and Tick Control Pets and Home on cats, kittens, and nursing animals.

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11/17/2016 Michelle from North Canton, Ohio

QHow often would you spray a dog with Petcor Flea Spray?
This morning I see an adult flea on him. Is it too soon to respray him?


Per the product label Petcor Flea Spray can be reapplied as often as weekly of your pet becomes reinfested with adult fleas for outside sources. Please let us know if we can be of any more assistance.

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10/20/2016 Karen from Royal Oak

QWhy does the product description specifically state that Petcor contains the Precor IGR?
Thus rendering it the power to be more than a contact kill - supposedly. Then in the Q and A section it specifically says that the product has NO residual capabilities????


We apologize for any confusion. †Petcor Flea Spray†contains natural Pyrethrins which have no residual properties, which is what that answer is referring to.†There is no residual to continue to kill anything. †(S)-Methoprene (which is an IGR only)†will remain for a time though it†does not kill anything directly. †It†only prevents young from maturing into reproducing adults. †As a result, any pre-adult fleas that then contact the animal it is applied to will not be able to mature. †If you want to continue to kill adults that get onto your animals, then you will have to reapply as needed.

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10/19/2016 Cassie from Clarksdale, Ms

QCan Pector Flea Spray be used on rabbits?
My rabbit has some fleas & I have tried a flea comb but I can't keep him still long enough to come all of him so I was wondering if it was safe to use Petcor Flea Spray that I use on my dog..


Unfortunately, Petcor Flea Spray is not labeled for use on Rabbits so we wouldn't recommend this use. Rabbits tend to have very sensitive skin and are prone to other skin conditions, so we must consider the rabbit's health first. We recommend checking with your veterinarian to find out what the best treatment for your rabbit would be. We do sell some products for rabbit fleas here.

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12/06/2015 Jeff from Barbabdos

QCan Petcor kill sand flies?
Sand flies are attacking my dogs. I need to know if I spray Petcor directly on sand flies, will they die?


Petcor Flea Spray is only labeled to kill fleas, ticks, and lice. It does contain natural Pyrethrins, which is a non-selective insecticide, so it will likely kill other insects on contact. Another option is Wondercide Flea and Tick Control for Pets and Home, which will kill most pests on contact and can be used daily.

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11/11/2015 Wendy from Smithfield, Nc

QDo fleas continue to die once Petcor Flea Spray dries?
After I sprayed my dog I noticed fleas were still alive around his rear. Does Petcor continue to work after it dries or do I need to spray again so soon because some fleas did not die?


Yes, Petcor Flea Spray does keep working after it has dried. Petcor will kill adult Fleas on contact, but continues to protect by preventing flea eggs from hatching for up to 30 days. You should continue to apply as needed to kill adult fleas found on your pet.

1 of 1 people found this answer helpful.
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10/02/2015 Nou from Auburn, Ga

QHow long after spraying my dog with Petcor, can the kids play with him?


You want to allow the dog's fur (treated with Petcor) to completely dry before allowing the children to play with him.

How to Get Rid of Fleas Treatment Article

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09/14/2015 Becky from Ketteting Ohio

QCan Petcor Flea Spray be used on carpets?


Petcor would not be the appropriate product to use on carpets or furniture for flea control as Petcor is specifically for applications directly to the pets themselves. If you wanted a product to treat carpets you could go with either Precor 2000 Plus, or the products in our Indoor Flea Kit.

2 of 2 people found this answer helpful.
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02/08/2015 Trudy from Washington Dc

QPetcor on pet's bedding
Why do you recommend Ultracide instead of PEtcor 2000 for treating your home and pet bedding?

APetcor is specifically for your PET, not the belongings in your home. It's formulated for use directly on pet skin to control the fleas and help kill any in conjunction with your flea topicals like Frontline. Ultracide is not for use on pets at all but is for use on flooring and pet bedding and has the quickest knockdown of fleas in the home compared to some of the other flea aerosols like it we carry. 

1 of 2 people found this answer helpful.
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