The present investigation has been carried out to study the post embryonic development of Galleria mellonella L. and its management strategy at apiary Laboratory of Department of Entomology, Assam Agricultural University, Jorhat during 2001-02. The results showed that the egg measured to be 0.39±0.4 mm and 0.5±0.02 mm in length and width respectively and the duration was found to be 3-10 days. The larval and prepupal duration were recorded to be 22-69 days and of 3-12 days respectively. The pupa were found to be 14.32±0.15 mm in length and 4.75±0.08 mm in width lasting for 8-10 days. The adult longevity was 11.0±1.15 days for male and 22.0±0.35 days for female. The effective management strategy was found to be with the treatment of Bt. formulation var. Karstaki @1 percent per hive followed by neem oil 3% and sulphur fumigation 28 g/hive.