Distribution and population fluctuation of Grapholita molesta Busck, 1916, (Lepidoptera: Tortricidae)] in fruit orchards of Çanakkale province

Özet

Öz This study was conducted to determine distribution and population fluctuation of Grapholita molesta Busck, 1916 (Lepidoptera: Tortricidae) in fruit production areas of Çanakkale province in 2007-2009, by using pheromone traps. G. molesta adults were present in all sampled fruit orchards of Çanakkale province. The adult population change was investigated by weekly samplings in three peach orchards in Center and Lapseki district. Depending on the sampling orchards, first adult flight of G. molesta started from the middle of March and continued until the middle of November. The flight curves showed that adult population produced 4 to 5 flight periods, which were in the middle of April, at the beginning of June, in the middle of July and August, and the end of October depending on orchards. As a result, it is determined that G. molesta had four generations per year in Çanakkale Province.