Figure 8. (A) Comparison of Tca and Tca(-Aii, Aiii) toxicity to first instar Bemisia tabaci . The data represent the mean percentage of first instar nymphs developing to the second instar (± SEM) at different concentrations of each complex. (B) The mean length of survival (± SEM), in days, of adult sweet potato whiteflies at varying concentrations of Tca(-Aii, Aiii).