Determination of population development and damage rate of codling moth [(Cydia pomonelle Lin.) (Lepidoptera: Tortricidae)]in apple orchards of Ergani district (Diyarbakir)

This study was carried out in Ergani (Diyarbakır) district of Ergani in 2023 and 2024 two apple orchards selected in Ergani Centre. In this study, the population development of apple borer [Cydia pomonella (L.) (Lep/ Tortricidac)] in Ergani Centre, the date of the first adult emergence, the peaks formed by the pest population, the adults actively in natureduration and contamination rates were determined has been used. Sexual pheromone for monitoring the population development of apple borer traps were used. In the first garden, 6 traps were used and in the second garden 6 traps were set respectively. Pest the nut size of the fruits to determine the rate of contamination caused by every 15 days starting from the period sampling was carried out. As a result of the study, it was found that sexual adult population determined with attractive traps in 2023 and 2024 peaks were formed 2 and 3 times respectively. Apple cankerworms are observed according to years and climatic conditions. According to the data, it gives 2-3 offspring was detected. The first adult emergence occurred in the first week of May. Afterwards, the adults, which were seen in the gardens for 5 months, continued their flight until the beginning of September. In the gardens made in 2023-2024. As a result of observations, the average contamination 1. garden respectively 30 to 34 per cent in the 2nd garden, respectively, by %32 to 36 per cent was detected.