| dc.description.abstract | This study evaluated dose-response, persistence, irritancy and wash
resistance of mosquito nets treated with a synergized natural pyrethrins-formulation against
Anopheles gambiae ss Methods. Multi-filament polyester netting was impregnated to deposit
doses of pyrethrins equivalent to 75 mg/m2, 100 mg/m2, 250 mg/m2, 500 mg/m2, and
1000mg/m2. Dose-response, persistence, and wash resistance were determined by a 3-
minute cone bioassay on three-day-old female A. gambiae ss and residual-insecticide
persistence was assessed in modified WHO bioassay tunnels and HPLC, respectively.
Results. Interaction between dose and time post-exposure to treated net on knockdown (KD)
and mortality of mosquitoes was significant (P= 0. 0001). Significant likelihood ratio (χ2= 33.
23, P= 0. 00266) confirmed post-exposure time effect on KD. Unwashed pyrethrins … | en_US |
