Fig 1. Stage-specific mortality observed for Ae. aegypti mosquitoes in response to treatment with different concentrations of the insecticide DFB.

Mosquitoes from two field-derived Brazilian populations; Boa Vista (BVT) and Aparecida de Goiânia (APG) were compared prior to selection with DFB (Panel A), and then again after the BVT and APG populations had been reared for several generations in the absence (cont) or presence (dfb) of diflubenzuron (Panel B). Note, that in the two rightmost graphs higher concentrations of DFB were used. The selection process lasted for six generations for BVT, and seven for APG. The Rockefeller strain was used as a susceptible control both before (Rock A), and after selection (Rock B).