Virbac Knockout E.S. Area Treatment Spray, 16-oz can

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Virbac Knockout E.S. Area Treatment Spray is the inverted aerosol house spray containing pyrethrins and permethrin to kill active flea and tick infestations. Also, contains pyriproxyfen (NYLAR Insect Growth Regulator) to prevent flea infestations from developing for up to 7 months. One 16 oz can covers 2,100 square feet. Knockout E.S. Area Treatment Spray provides rapid relief from active flea and tick infestations. Contains the highest levels of environmental adulticides in an aerosol for maximum effectiveness and quick killing of fleas and ticks. Prevents reinfestation of fleas by stopping immature fleas from developing into the adult biting stage. Reaches fleas hidden in carpets, rugs, drapes, upholstery, pet bedding, and floor cracks for greater effectiveness. No mess. Leaves no unpleasant odor or sticky mess and, when used as directed, does not stain furnishings.

Key Benefits

  • Rapidly kills active flea and tick infestations with active ingredients pyrethrins, permethrin, and pyriproxyfen (an Insect Growth Regulator)
  • Prevents flea infestations from developing for up to 7 months by stopping immature fleas from developing into the adult biting stage
  • Reaches fleas hidden in carpets, rugs, drapes, upholstery, pet bedding, and floor cracks for greater effectiveness
  • Leaves no unpleasant odor or sticky mess, and does not stain furnishing when used as directed
  • Covers and treats 2,100 square feet

See all items by Virbac

  • Item Number
  • Made in
    United States

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Customer Reviews

Rated 4.5 out of 5 by 42 reviewers.
Rated 5 out of 5 by My big hope My dog and her bed came home with seemingly resistant fleas, from a boarding kennel over labor day week.a nightmare. After washing EVERYTHING washable in my home, clipping cocker really short, flea bathing her, putting advance on her and two cats, vacuuming every surface daily and still finding live fleas, I have sprayed ALL surfaces with this recommended vet and dog trainer. It can/does enter small cracks and spaces, upholstery crevices, under furniture, rugs, every surface possible. It will inhibit development of eggs and larvae into adult fleas for 7 months. Since both cats and dog are showing a few live fleas, they are getting capstar daily as I continue with daily vacuuming. This has been a two week ordeal thus far. Since spraying I am definitely finding fewer live fleas...none yesterday....and less flea dirt using flea comb on animals. The spray has a very acceptable smell which mostly disappears after it dries, and seems safe for surfaces following directions on the can. I can give more definite evaluation as time goes by. All fingers are crossed. I have one cocker spaniel and two cats. Also have put flea collar on dog...these seem to be very resistant fleas having come from a boarding kennel. October 11, 2016
Rated 5 out of 5 by Great Product, Period Awesome spray worked great! I had to clean out our rental RV we rented to irresponsible pet owners which we have turned over to the proper authorities. Soon has I walked in ( I had white pants on) the whole bottom of my pants were covered in fleas baby's, teen's & adult's, maybe 100 ez on each leg I shut the rv door I vacuumed them off me . Ordered this spray when it arrived I opened the door saw fleas jumping on my socks pants sprayed the area no fleas gone, dead - biff bang pow! See ya blood suckers!! You got fleas buy this you'll be glad you did must use in conjunction with flea shampoo , daily house and pet vacuuming. If you have pets killed fleas on contact eggs larvae yuk, see ya !! October 22, 2016
Rated 5 out of 5 by Virbac Knockout E.S. Area Treatment Spray This product is a must have if you have a dog or cat. Sprayed once, never seen a flea since! AMAZING product that I highly recommend. Awesome service & shipping arrived in 2 days as stated! October 29, 2016
Rated 3 out of 5 by Coverage is questionable / Pricey for what you get Says approximately 2,000 square feet, followed the directions, but it ran out very quickly in a 1400 sq ft home with mainly wood floors that did not get treated. Although the flea problem is minimal now, we still are battling the problem. October 30, 2016
Rated 5 out of 5 by It works I tried several products before purchasing Virbac Knockout spray. October 20, 2016
Rated 4 out of 5 by Great! No more fleas, product is fine. I don't have anything else to say, how long do I have to make this, GEEZ.... October 12, 2016
Rated 5 out of 5 by Truly AMAZING I was being attacked like crazy, my apartment is all carpeted and getting getting off the bed was a nightmare, id have about 10 miniscule blood suckers on me everytime i walked on the floor. I swear they just seemed to appear in a week. My poor fur babys hated them too. I powdered the floor like 3 times vacuumed and they persisted, i bought a hand spray still they seemed to attack more. Finally after reading reviews i caved in and got 2 of these bottles of virbac knockeout e.s. area treatment spray can 16 oz. Omg this stuff is AMAZING i can walk in my home again and they seem to be gone. Also i treated my cats with capstar pills and it works like a charm, these two products together truely brought peace and comfort back to my home. By the way, i only needed one can for my two bedroom apartment, still im keeping my other bottle for peace mind. Truly amazing stuff. Thank you virbac. June 24, 2016
Rated 3 out of 5 by helped somewhat We have a large basement with a flea infested cat. Since the cat is semi-feral and can't be caught I have not been able to treat the cat. I have done a lot of cleaning and have sprayed twice, but there are still fleas. I can't fault the spray . The order was received quickly and I would order again from chewy as the price was very good. September 9, 2016
  • 2016-10-31 T07:00:38.036-05:00
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