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<p>This study was conducted between 2023 and 2024 in two pistachio orchards of&#xa0;15 and 30&#xa0;decares, respectively, in Atabağı town, Baykan district, Siirt province, Türkiye, where pistachio production is intensive. The aim was to determine the adult population dynamics and infestation rate of the pistachio twig borer (<i>Kermania pistaciella</i> Amsel. [Lepidoptera: Tineidae]). Pest population density was determined using sex pheromone traps. Additionally, to determine the infestation rate of <i>K.&#xa0;pistaciella</i> in the sampled orchards, 100 shoots and fruit clusters were examined. As a&#xa0;result of the study, the first adults of <i>K.&#xa0;pistaciella</i> were detected in the pheromone traps on April&#xa0;20, 2023 (42–14&#xa0;adults/trap), with the highest number recorded on April&#xa0;29 (903–98&#xa0;individuals/trap), and the last adults observed in nature on May&#xa0;22. In 2024, the first adults appeared on April&#xa0;13 (29–8&#xa0;adults/trap), the highest number was recorded on April&#xa0;21 (1120–275 adults/trap), and the last adults were observed in nature on May&#xa0;18. The flight period of <i>K.&#xa0;pistaciella</i> adults in nature was determined to be 33&#xa0;and 36&#xa0;days in 2023 and 2024, respectively. During the study years, the average infestation rate of <i>K.&#xa0;pistaciella</i> in pistachio orchards was found to be 34.5 and 28% in shoots, while the infestation rate in fruit clusters was 8.8&#xa0;and 9.1% on average, respectively.</p>

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Determination of Population Change and Damage Rate of Kermania pistaciella Amsel (Lepidoptera: Tineidae) in Pistachio Orchards in Türkiye

  • 期刊论文

  • 发表日期：

    2025年5月28日

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  • Fırat Okalin,
  • Mehmet Kaplan

摘要

This study was conducted between 2023 and 2024 in two pistachio orchards of 15 and 30 decares, respectively, in Atabağı town, Baykan district, Siirt province, Türkiye, where pistachio production is intensive. The aim was to determine the adult population dynamics and infestation rate of the pistachio twig borer (Kermania pistaciella Amsel. [Lepidoptera: Tineidae]). Pest population density was determined using sex pheromone traps. Additionally, to determine the infestation rate of K. pistaciella in the sampled orchards, 100 shoots and fruit clusters were examined. As a result of the study, the first adults of K. pistaciella were detected in the pheromone traps on April 20, 2023 (42–14 adults/trap), with the highest number recorded on April 29 (903–98 individuals/trap), and the last adults observed in nature on May 22. In 2024, the first adults appeared on April 13 (29–8 adults/trap), the highest number was recorded on April 21 (1120–275 adults/trap), and the last adults were observed in nature on May 18. The flight period of K. pistaciella adults in nature was determined to be 33 and 36 days in 2023 and 2024, respectively. During the study years, the average infestation rate of K. pistaciella in pistachio orchards was found to be 34.5 and 28% in shoots, while the infestation rate in fruit clusters was 8.8 and 9.1% on average, respectively.