Figure 1

Oviposition choices after induction of olfactory preference in larvae and infectious blood-meal in adult Aedes aegypti females. (A) Illustration of the experimental setup for the preliminary assay on chemical preferences of the laboratory mosquito colony. Each of the three beakers contains either water, skatole or p-cresol chemicals (100 µg/l) with a sandpaper strip, for females to lay their eggs after a blood meal. The containers are equidistant and their position is daily moved clock-wise to avoid any location preference in the cage. (B) Results of the preliminary experiment with the Aedes aegypti colony, showing the percentage of eggs laid in each container after a blood-meal. (C) Bar plots showing water and skatole-reared female preferences in percentage of eggs in each container after an infectious blood-meal. Data shows the mean percentage (±sem) of the four experimental replicates and P-values for significant differences between the egg percentages with *P < 0.05; **P < 0.01; ***P < 0.001.