Vol. 12, Issue 12 (2023)

Author(s):
Kangjam Bumpy, Yendrembam K Devi, Athokpam Kalpana and Sonia Sagolsem

Abstract:
Henosepilachna vigintioctopunctata (Fab.) (Coleoptera: Coccinellidae) or Hadda beetle, is one of the major pest on Brinjal. Studies on the biology of hadda beetle on brinjal in Bishnupur district, Manipur, revealed that the beetle passes through four instars. The incubation period was 3.47±0.37 days. The total larval period was 18.86±0.28 days. The mean pupal period was 5.33±0.07 days. The adult male longevity was 28.63±0.89 days. The mean lifespan of female beetle of E. vigintioctopunctata was observed as 34.03±1.16 days. The mean fecundity was recorded as 48.77±1.74 eggs/female.