Determination of Population Change and Damage Rate of the Harmful Codling Moth (Cydia pomonella Linnaeus) (Lepidoptera: Tortricidae) in Apple Orchards in Malatya Province, Türkiye

This study was carried out to determine the population change and damage rate of the harmful codling moth (Cydia pomonella Linnaeus) (Lepidoptera: Tortricidae) in apple orchards in Malatya province, Türkiye. The field observations were made from April to October once a week between 2015 and 2016. Visual control and sexually attractive trap methods were used in the studies. As a result of the study, C. pomonella adults were first detected in sexually attractive traps in apple orchards in the last week of April and the first week of May. The adult population formed two peaks during the year, in June and August. According to the climatic conditions in the orchards where the study was carried out, it was determined that the flight period of adult butterflies of C. pomonella in nature lasted approximately 5 months (May–September) and produced two generations in both years. The last date that the adults were caught in the traps fell in the last half of September. On the other hand, the average damage rate in apple orchards by years was determined as 16.35 and 19.71% in Sürgü village and 20.92 and 22.35% in Çığlık village, respectively.