Extent of damage and seasonal incidence of Leucinodes orbonalis (Guen.) on Brinjal

The observations were recorded at weekly intervals starting from the 30 days of transplanting till last picking in the end of April. The shoot and fruit borer infestation was started from 4^th to 11^th standard week. The peak period of shoot infestation was observed in 9^th standard week (5.4 %) and 7^th standard week (4.6 %) followed by 8^th standard week (4.5 %). The incidence of fruit borer was started from 10^th standard week and continued till last picking. Peak infestation of fruit borer was observed in 18^th standard week (43.3 %) and 17^th standard week (40.1%). The average extent of shoot damage ranged 1.4 to 4.0 % and fruit damage 14.9 to 35.2 % were recorded.