Repellency of two controlled-release formulations of deet against Anopheles quadrimaculatus and Aedes taeniorhynchus mosquitoes.
Two experimental controlled-release repellent formulations containing 35% (3M) and 44% (Biotek) deet, respectively, were compared with a 75% standard formulation of deet used by the military. The military repellent was equal to or significantly better than the formulations in duration of protection against 2 mosquito species in laboratory and field tests, but the formulations contained only 47-59% the amount of deet in the military repellent. In all cases high levels of protection (greater than 95%) were measured, but because of high densities of biting mosquitoes in field tests, this level did not necessarily indicate few bites. In terms of mean bites/test/day by Anopheles quadrimaculatus in caged tests, the military repellent had fewest (2) and Biotek had most (41).
Schreck
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U.S. Department of Agriculture, Insects Affecting Man and Animals Research Laboratory, Gainesville, FL 32604.
Kline
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D000330:Aedes; D000818:Animals; D000852:Anopheles; D001549:Benzamides / Q000008:administration & dosage*; D003671:DEET / Q000008:administration & dosage*; D003692:Delayed-Action Preparations; D005069:Evaluation Studies as Topic; D007299:Insect Bites and Stings / Q000517:prevention & control*; D013997:Time Factors
D001549:Benzamides; D003692:Delayed-Action Preparations; D003671:DEET