Patent ID: 8790673

Claim:
A method of treating cockroaches comprising the steps of: (a) providing an aqueous composition comprising an agent, wherein the agent is a liquid surfactant, wherein said liquid surfactant is 2,5,8,11 tetramethyl 6 dodecyn-5,8 diol ethoxylate; ethoxylated 2,4,7,9-tetramethyl 5 decyn-4,7-diol; or mixtures thereof, wherein the agent is present at a concentration of about 0.1% weight percent to about 1.5% weight percent and wherein the agent forms a contact angle that is less than about 40° as measured with a Krüss DSA 100 tensiometer, such that the contact angle is formed by a resting drop of the liquid composition on a solid surface and rests for a period of greater than about 80 milliseconds after depositing; (b) depositing at least one drop of the composition onto a solid surface of a cockroach; and (c) causing the cockroach, with the at least one drop of the composition deposited thereon, to exhibit a rapid knockdown (KD), at a rate of about 80% within about two minutes or less after the at least one drop is deposited.