| abstract |
The invention provides an insect repellent composition that repels flies, gnats, mosquitoes, lice, ticks, and fleas. The insect repellent composition comprises an effective amount of a phosphorous containing compound having the formula (RO)3P=Ox or (RO)2P=Ox(OH) alone or in synergistic combination with any one or more compounds selected from a group comprising C10-C20 mono-unsaturated hydrocarbons, optionally substituted C1-C10 alkyl esters, and dicarboxylic acids; wherein R is an optionally substituted C1-C10 alkyl group or aryl or aryl substituted with C1-C10 alkyl or alkoxy; and x is 0 or 1, and a carrier vehicle. |