Virbac Knockout Area Treatment Spray, 14-oz can

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Virbac Knockout Area Treatment Spray is an aerosol house spray containing synthetic pyrethroids to quickly kill adult and larval fleas and ticks. Prevents subsequent flea infestations for up to 4 months (120 days). Pyriproxyfen (NYLAR Insect Growth Regulator) inhibits flea growth and kills fleas before they reach the adult biting stage. Available in 14 oz aerosol can. Covers approximately 2,000 square feet.

Key Benefits

  • Aerosol home treatment spray containing synthetic pyrethroids that quickly kills adult and larval fleas and ticks
  • Prevents subsequent flea infestations for up to 4 months
  • Contains pyriproxyfen, an Insect Growth Regulator that inhibits flea growth and kills fleas before they reach the adult biting stage
  • Area treatment that covers 2,000 square feet
  • Veterinarian recommended. Safe, effective, and powerful treatment of flea and tick infestation

See all items by Virbac

  • Item Number
  • Made in
    United States

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Customer Reviews

Rated 4.5 out of 5 by 21 reviewers.
Rated 5 out of 5 by Best Flea Treatment Ever! This is a great product. You can do a room at a time or the whole place and it really does work for months. Unlike foggers, this gets under and behind things--highest recommendation. January 13, 2017
Rated 5 out of 5 by works better than anything else I am a dog groomer & recommend it to my clients who have fleas. It works better than an exterminator. October 26, 2016
Rated 5 out of 5 by Excellent spray Works as soon as you spray the whole area. Applied again 2 days later just to make sure, now I don't worry about fleas in my basement. Will order again just to have on hand. November 3, 2016
Rated 4 out of 5 by Recommended by my vet But...flea infestation isn't often something we can handle ourselves. These room sprays have been good (and I like this brand), and in combination with pills from the vet and monthly topical treatment, it provides relief, but finally day-boarding of pets and professional spray bombing of premises may be necessary. October 22, 2016
Rated 3 out of 5 by no matter how much you shake it, it doesn't spray evenly I ordered 4 cans and with each application, clumps of foam spurt out on my rugs. Per the instructions, I shake it vigorously prior to using...but it doesn't consistently spray a fine mist. Very frustrating. October 19, 2016
Rated 5 out of 5 by Great product ! We had a bad flea problem. This product, along with sweeping, killed all the fleas within 10 days. October 13, 2016
Rated 5 out of 5 by This product does work I have spent tons of money trying different product for the flea problem i had in my home. I have used foggers, spray, carpet powder and nothing worked. It was easy and a lot less work then when you use the foggers. I went on Chewy's website and saw a lot of good reviews and thought I would try it. It has only been two weeks but so far it has worked great. We are no longer seeing fleas on our dog. We will do it again in two weeks just to keep up on it but I would recommend this product. September 8, 2016
Rated 5 out of 5 by This product is fabulous! Virbac knockout treatment. Highly recommend this excellent product! I have used this for over 10 years in my grooming shop and home. September 29, 2016
  • 2017-01-18 T06:53:52.205-06:00
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