KNOCKOUT® E.S. Area Treatment, KNOCKOUT® Room and Area Fogger and KNOCKOUT® Area Treatment can help treat and control fleas and ticks around your home. Many products only kill adult fleas, leaving 95% of the population alive in the house. With KNOCKOUT Brand Products, you can now choose from a family of products that kills adult fleas, kills pre-adult fleas, kills ticks and aids the prevention of flea reinfestation. Find one that is right for you.