Figure 1. Larval mortality of Aedes aegypti caused by aqueous solution of pyriproxyfen.

Lethal concentrations were estimated based on concentration-mortality assays using Probit analysis (χ² = 20.20; df = 5; P < 0.001). Lines denote 95% confidence intervals. Black point represents LC₂₅, LC₅₀, LC₇₅ and LC₉₀ concentrations, while LC₅₀ was selected to evaluate histological, ultrastructural changes and immunofluorescence.