Vol. 11, Issue 3 (2022)

Author(s):
Harminder Singh

Abstract:
Corcyra cephalonica is a secondary pest of stored grains like wheat, maize, and rice. The biological studies revealed that the life cycle of rice moth passed through four different stages i.e. egg, larva, pupa and adult. The egg duration ranged from 3-5 days. The larva passed through six instars and the average duration (days) of each instar was found to be 4.88±0.7, 4.48±0.7, 3.96±0.7, 3.70±0.6, 3.76±0.8 and 10.04±0.7 days respectively. The longevity of females was higher at 4.24±0.9 days than the males 3.52±1.0 days. The average pupal period was 11.34 days. Powdered leaves of Ocimum tenuiflorum (‎Lamiaceae) were tested for their efficacy against the stored grain insect pest C. cephalonica. At the higher measurements of 2.5 and 3.5 g of Ocimum tenuiflorum it shows 100% mortality of second instar larvae of rice moth.