TABLE 1

Selection of the Isla Mujeres (IMU-F4) permethrin-resistant strain

StrainMortality (%)No. survivors/no. exposedLC50 permethrin (μg/bottle)
New Orleans1000/700.20
IMU-F283.15125/7422.70
IMU-F39.70857/95017.0
IMU-F40.70883/95060.0
  • Adults of each generation were exposed to 5 μg permethrin for 1 hr. Eggs were collected from the survivors in each generation.