This study was carried out to determine the preference of tree direction and orchard direction of the Cherry fruit fly, Rhagoletis cerasi L. (Diptera: Tephritidae), which harmed growing cherry in Erzincan province, Turkey, in 2017–2018. The studies were carried out in 10 orchards, including five orchards in Erzincan Central district and five orchards in Üzümlü district. Samplings were carried out according to Lazarov and Grigorovʼs (1961) method in randomly selected orchards during May through July. A total of 400 fruits were randomly collected and examined from the orchards where the study was carried out, 100 of them from all directions. As a result of the study, it was determined that R. cerasi was mostly harmful in the southern direction of the cherry trees and in the northwest direction of the orchards. In addition, it was found that Cherry fruit fly damage was higher south × northwest and east × northwest in tree direction × orchard direction interactions.

本研究旨在确定 2017-2018 年在土耳其埃尔津詹省危害正在生长的樱桃的樱桃果蝇Rhagoletis cerasi L. (Diptera: Tephritidae) 的树向和果园方向偏好。研究在 10 个果园进行，其中包括 Erzincan 中央区的 5 个果园和 Üzümlü 区的 5 个果园。在 5 月至 7 月期间，根据 Lazarov 和 Grigorov（1961）的方法在随机选择的果园中进行抽样。从进行研究的果园中随机采集并检查了总共400个水果，其中100个来自各个方向。作为研究的结果，确定了R. cerasi主要危害樱桃树的南部和果园的西北方向。此外，在树木方向×果园方向的相互作用中，发现樱桃果蝇对南×西北和东×西北的损害较高。