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Insect repellent

Insects have long been known as a nuisance and, for some insect genera, as a health hazard. Mosquitoes, for instance, are a proven vector of diseases, and the genus Aedes in particular is associated with yellow fever, dengue, encephalitis and malaria (Encyclopaedia Britannica). Repellents are chemical substances having a repellent effect on insects. Their use in human and veterinary hygiene is of great practical importance, where they protect man and beast against attack by bloodsucking, biting or otherwise annoying insects. Insect repellent compositions are available commercially in a variety of product forms, such as aerosol and pump sprays, creams, lotions and gels. Depending upon the product form, the compositions may be administered to both the skin and to clothing. The compositions may be administered in preparation for a variety of outdoor situations, such as picnicking, hiking, fishing, swimming and exercise. Repellents are also used in the household by applying or spraying them to surfaces of walls, floors, cabinets, drawers, packages, containers, rugs, upholstery and carpeting, and in potential nesting places for insects, such as inside walls and between floors. Insect repellent compositions are available commercially in aerosol form. Consumers find aerosol compositions easy to administer to both the skin and to clothing. Further, aerosol compositions help consumers avoid the inconvenience of having to apply and spread the insect repellent with the hands.

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