Repellents applied to skin and clothing are of great importance in protecting human beings from mosquito attack. They are especially important when other methods of obtaining relief from annoying pests and mosquito vectors of various diseases are not feasible. Before World War II, repellent dopes gave very little protection from mosquito attack. One such dope contained oil of citronella along with gum camphor, oil of pennyroyal, pine oil, and stearic acid. Effective mosquito repellents were developed during World War II and even more efficient repellents have been developed since that time. We have not attained our ultimate goal of providing the ideal mosquito repellent, but diethyltoluamide (deet) comes the closest.
This paper will be concerned primarily with the program to evaluate mosquito repellents being conducted by the Insects Affecting Man and Animals Research Laboratory at Gainesville, Fla, previously located at Orlando, Fla. I will describe the testing techniques we use