Figure 2

Bioassays with 3rd (a) or 4th (b) instar Ae. albopictus larvae exposed to control and Bti rafts. Two different doses of Bti were included in MosChito rafts (see Methods for the details) and survival of larvae was recorded at different times during 24 h. The values reported are the mean ± standard errors. Statistical significance of survival decrease in Bti exposed larvae compared to controls is reported along with the description of the results obtained.