Investigations on the distribution, population change and determination of Drosophilidae (Diptera) species in cherry and peach fields in Tokat province

In this study, the presence and prevalence of Drosophilidae species were studied in cherry and peach plantations of Tokat province in 2021-2022. In addition, the population of the species belonging to the family was monitored for two years in one peach and cherry plantations in central district of Tokat. According to the results, 10 species were recorded in the central district of Tokat, 9 species in Erbaa, 8 species in Turhal and 6 species in Pazar. Drosophila subobscura Collin, 1936 was the most common species in cherry and peach fields in central district of Tokat in 2021 and 2022. In Erbaa, D. subobscura was the most common species in cherry fields in 2021 and D. hydeii Sturtevant, 1921 and Scamptomyza pallida (Zetterstedt, 1847) took the first place in terms of prevalence in peach fields. In 2022, the most common species in cherry and peach fields was D. subobscura. While D. hydei was the most common species in cherry and peach plantations in Turhal in 2021, D. immigrans Sturtevant, 1921 in cherry fields, and D. subobscura in peach fields were common in 2022. In the cherry fields in Pazar, the common species was D. immigrans in 2021 and D. subobscura in 2022. D. suzukii (Matsumura, 1931), one of the important species in the family, was recorded in cherry and peach plantations in central district of Tokat and Erbaa, and in peach plantations in Turhal. The population of D. suzukii increased from late august to mid-september of 2022 in central district of Tokat cherry and peach plantations, and from mid-august to the end of 2022 in Erbaa peach fields. Keywords: Drosophilidae, Distribution, Population Change, Tokat