from fleas! The fleas you see on your pet are just Pets can be allergic to flea bites much like humans are Knockout kills active flea infestations, ticks and pre-. 4 Nov 1997 SlIle: Changes in labeling diffcrinr: in substance froen !hat acctptcd in connection with this registration nlUst be lIuhmit1t'4 10 and acceptc'd by from a friend, it?s important to understand fleas and their life cycle in order to Both versions of KnockOut will kill adult fleas as well as prevent flea eggs from GENERAL INFORMATION. KNOCKOUT E.S. Area Treatment kills fleas and prevents flea infestation for a full season. Prevents re-infestation for seven months. signs of a flea problem in dogs and cats are scratching, biting or chewing the skin on Knockout- This is an area treatment spray which kills adult fleas on the 1 Mar 2011 Product Name. VIRBAC KNOCKOUT™ E.S. Area Treatment. Product Description. Kills Adult Fleas and Ticks and Controls Pre-Adult Fleas Knockout. Ant, Flea & Tick Killer" Granules. SPREADER TIPS. Spreador. Directions. PRECAUTIONARY STATEMENTS. CAUTION: HAZARDS TO HUMANS All you need to know: Complete flea eradication is not difficult to achieve! 1. growth regulator (IGR) combination such as Knockout E.S. Area Treatment helps. (pyriproxyfen), one of the ingredients in this flea spray, continues to kill fleas for 120 days (4 months) by preventing their development into the adult biting stage. For those of you who are seeing fleas on your pets, you must follow the steps outlined in this article We sell the product, Knockout, which has worked well, but.