Treatment of clothing with a permethrin spray for personal protection against the western black-legged tick, Ixodes pacificus (Acari: Ixodidae).
The synthetic pyrethroid, permethrin, when applied to clothing with a pressurized spray at an application rate estimated previously to be 4 micrograms a.i./cm2, was found to be 100% effective for personal protection against all three parasitic stages of the western black-legged tick, Ixodes pacificus Cooley and Kohls. This tick has been implicated as the primary vector of the Lyme disease spirochete (Borrelia burgdorferi) to humans in the far-western United States. Periods of exposure to permethrin-treated cloth as brief as 10 and 45 seconds incapacitated 100% of subadult and adult ticks, respectively, within 1-3 h post-treatment. Under field conditions, permethrin apparently does not repel questing adult ticks, though 100% of ticks recovered from treated clothing after exposures as brief as less than or equal to 15 seconds were moribund 1 h later.
Lane
R S
RS
Department of Entomological Sciences, University of California, Berkeley 95720.
D000336:Aerosols; D000818:Animals; D001096:Arachnid Vectors; D003020:Clothing; D005260:Female; D006801:Humans; D007306:Insecticides; D008193:Lyme Disease / Q000517:prevention & control / Q000635:transmission; D008297:Male; D026023:Permethrin; D011722:Pyrethrins; D013984:Tick Infestations / Q000517:prevention & control*; D013987:Ticks
D000336:Aerosols; D007306:Insecticides; D011722:Pyrethrins; D026023:Permethrin