Patent ID: 7807717

Claim:
A method for the control of insects breeding on water surfaces, consisting essentially of the steps of (1) blending in a high shear mixer, the ester of a fatty acid of 10 to 25 carbon atoms and a low molecular weight alcohol, an emulsifying agent and a thickener and water, such that the organic phase comprises from 20 to 70% by weight of the mixture until an emulsion containing the ester with droplet sizes ranging from 1 to 20 microns in diameter is obtained (2) diluting the organic phase of the emulsion to a concentration of 1 to 10% by weight of the emulsion and (3) applying such to the surface of insect infested water in a concentration of 6 to 12 gallons of fatty acid ester per acre of surface water, thereby breaking the emulsion to form an oil film on the water.