Bioinsecticide action of the venom of africanized bees Apis mellifera Linnaeus 1758 (hymenoptera: apidae): I-the most susceptible age of diatrae saccharalis fabricius 1794 (Lepeletier: pyralidae) eggs to the venom action

The present paper aimed at testing the action of non-lyophilized venom of Africanized bees Apis mellifera through topical applications on Diatraea saccharalis egg masses. The CL50, DL50 and the most susceptible age of eggs to the venom topic application were also determined. Three-day-old eggs were the most susceptible to the venom action with CL50 equal to 8.6 mg/ml and DL50 equal to 0.173 mg/mass. The venom loses its action after being stored for 15 days.