author(s)
Bharati Jambunatha Patil, Suchithra Kumari MH, Revanna Revannavar, Shivaprasad M, Yallesh Kumar HS and L Hanumantharaya

abstract
An investigation on seasonal incidence of sapota seed borer, Trymalitis margarias Meyrick was carried out during 2019-2020. The seed borer infestation was observed throughout the study period but the intensity varied in Kalipatti and Cricket Ball cultivars, where the maximum infestation was documented in cv. Kalipatti than in Cricket Ball. The minimum seed borer infestation was noticed during September 2019 (5.13 and 2.56% fruit damage) while the maximum was in March 2020 (51.92 and 30.13% fruit damage) in Kalipatti and Cricket Ball cultivars, respectively. Rainfall had a significant negative correlation with seed borer infestation (r= -0.757 and -0.765, respectively) while significant positive influence was observed in case of maximum temperature (r= 0.788 and 0.713, respectively), maximum relative humidity (r= 0.661 and 0.676, respectively) and bright sunshine hours (r= 0.866 and 0.708, respectively) in both the cultivars.