ISHS Acta Horticulturae 410: II International Cherry Symposium
SUSCEPTIBILITY OF SOME SWEET CHERRY CULTIVARS TO RHAGOLETIS CERASI L. (DIPTERA, TEPHRITIDAE) |
| Authors: | S. Stamenkovic, R. Garic, S. Milenkovic, M. Nikolic, T. Stamenkovic |
| Abstract:
Cherry fruit fly (Rhagoletis cerasi L.) occurs in almost all cherry growing regions in the Republic of Serbia, causing substantial damage in some years. Over the last few years, increased populations of R. cerasi have been recorded in the region of Cacak (western Serbia), causing more damage in mid-early and late sweet cherry cultivars. The susceptibility of some sweet cherry cultivars to R. cerasi was assessed in 1983–1992 in the varietal plantings of the Fruit and Grape Research Centre at Cacak. The average number of sweet cherry fruits damaged by cherry fruit fly ranged from 0.1 to 41.5% and in some late cultivars ('Bing', 'Lambert', 'Hedelfinger', 'Drogan's Yellow') it exceeded 80% in some years. The greatest number of damaged fruits was recorded in 1992 and 1984, averaging 26.5% and 22.3%, respectively. No fruit damage was recorded in early cultivars ('Primavera', 'Früheste der Mark', and 'Early Lyons'). However, in cultivars of the third and fourth ripening group ('Stella', 'Van') the percentage of damaged fruits went up to 16%, and in late cultivars ('Hedelfinger', 'Lambert', 'Drogan's Yellow') it was as high as 80%. The sweet cherry cultivars studied were therefore not resistant to cherry fruit fly. The intensity of attack was affected by fruit colour and ripening time. | |
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