Evaluation of Sapota Varieties Against Seed Borer Trymalitis Margarias Meyrick

The performance of 23 sapota varieties was evaluated against the seed borer Trymalitis margarias Meyrick at the Fruit Research Station, NAU, Gandevi during 2015-18. The infestation was below 4% in Chala collection-1, Chala collection-3, CO-1, CO-3 and PKM-4. This increased to 7.43, 6.63 and 6.25% with Kirthibarthi, DHS-2 and CO-2, respectively, compared to the standard check Kalipatti (6.08%). The damage was maximum during December in Kirthibarthi, Kalipatti and CO-2 as 8.94, 7.78 and 7.69%, respectively at initial phase of fruit harvesting; DHS-2 revealed a peak damage of 8.64% during February at middle phase. Kirthibarthi showed more susceptibility (22%) compared to that with Kalipatti, while DHS-2 and CO-2 were more vulnerable. Chala collection-1, Chala collection-3, CO-1, CO-3, PKM-4, Zumakhiya and PKM-3 revealed overall 40 to 57% less susceptibility compared to Kalipatti.