Özet:

This study was carried out in 2021 and 2022 to determine the population development and infestation rate of Tuta absoluta (Meyrick) (Lepidoptera: Gelechiidae) in tomato fields located in the Center, Tokatbaşı and Furunlu locations in Bayındır county (İzmir) t. In order to monitor the population development of the pest, three fields were determined in each location and 9 delta type pheromone traps were used (1 trap per field). In order to determine the infestation rate, 100 plants were selected randomly from each field on a weekly basis and their infestation status was checked. As a result of the study, according to the data obtained, the first adults of the pest were caught in mid-April. It was determined that the pest had3 to 4 generations at the Center of Bayındır, Tokatbaşı and Furunlu locations in 2021 and 2022, respectively. Adults remained active in nature for approximately 5 months and were seen until the end of August. The average infestation rate of tomato fields in Bayındır in 2021 and 2022 was determined as 23.31% and 18.26% in Center, 21.68% and 20.36% in Tokatbaşı, and 17.26% and 19.42% in Furunlu, respectively. It is recommended that tomato producers in Bayındır should hang the pheromone traps on the day of the seedling planting, should not delay the harvesting period until August because population development of the pest and fruit damage rate begin to increase, and that the spraying should be decided according to the number of adults in the traps.

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