Figure 4

The relationship between insecticide mortality and relative humidity in isofemale collections of Anopheles gambiae from Tororo, Uganda exposed to 0.75% permethrin for a population specific LT50 (the exposure time required to kill 50% of the population after a 24 h holding period). The line in bold is a logistic regression of Mortality on relative humidity at time of exposure. (Mortality ~7.30 −0.12 RH; likelihood ratio test p < 0.0001; pseudo R² = 0.163) (Muller et al. unpublished).