highly significantp < 0.0001
A Dunnett's post hoc analysis confirmed the improvement in the % of recovery of the flies treated with the stem bark extract compare to the untreated control, all concentrations being highly significant (control vs. 0.27, 1.33, and 26.6 mg.ml −1 p < 0.0001 and vs. 2.67 mg.ml −1 p = 0.001 and 13.3 mg.ml −1 p = 0.002; Figure 4C ).