Synergistic effects of TPP, DEM and PBO on activity of detoxification enzymes: CarE (A), GST (B) and P450 (C) in 3rd-instar nymph of S furcifera. The activities of CarE, GST and P450 in 3rd-instar nymph of S furcifera are presented as the mean of three replications ± SE. Means followed by the same letters did not differ significantly (p > 0.05) according to the ANOVA test. The F3, 8 values of different treatments on CarE, GST and P450 in 3rd-instar nymph of S furcifera were 1.818, 5.410, 610.745, and the p values on CarE, GST and P450 in 3rd-instar nymph of S furcifera were = 0.222 > 0.05, = 0.025 < 0.05, = < 0.0001, respectively.