Efficacy and Duration of Three Residual Insecticides on Cotton Duck and Vinyl Tent Surfaces for Control of the Sand Fly Phlebotomus papatasi (Diptera:Psychodidae).

摘要

This study evaluated the toxicity and duration of 3 residual insecticides against the Old World sand fly, Phlebotomus papatasi, an important vector of cutaneous leishmaniasis, on 2 types of tent material used by the US military in Afghanistan and the Middle East. Vinyl and cotton duck tent surface were treated at maximum labeled rate of lambda-cyhalothrin (Demand CS, Zeneca Inc, Wilmington, DE) bifenthrin (Talstar P. Professional, FMC Corportation, Philadelphia, PA) and permethrin (Insect Repellent, Clothing Application 40%, then subsequently stored in indoor, shaded space at room temperature 60%-70% relative humidity (RH) 22 degree C-25 degree C) and under sunlight and ambient air temperatures outdoors (20%-30% RH, 29 degree C- 44 degree C) Insecticide susceptible colony flies (F110) obtained from the insectary of US Navy Medical research Unit No. 3, Cairo, Egypt, were exposed to treated tent surfaces for 30 minutes periods twice monthly for up to 5 months, then once monthly thereafter, using the World Health Organization cone assay Lambda-cyhalothrin treated cotton duck tent material stored indoors killed P. papatasi for 8 months, while the complementary sun- exposed cotton duck material killed adult flies for 1 month before the efficacy dropped to less than 80 %.