Damage Status of Lentil Weevil (Sitona spp. Herbst.)(Coleoptera: Curculionidae) in Adıyaman Province

The leaf damage caused by Sitona species in Adıyaman province demonstrated significant spatial variability across various villages and districts during the years 2022 and 2023. Damage levels ranged from 21-30% to 71-90%, with the most severe damage occurring in the Samsat district, particularly in the village of Büyükbey, where damage increased from 41-50% in 2022 to 71-90% in 2023. In other areas, such as Vartana, Büyükkavaklı, and Besni, damage levels ranged from 31-50%. Overall, damage was more pronounced in 2023, particularly in the Kahta and Besni districts. The damage to nodosites in lentil fields across 11 locations in Adıyaman province also exhibited variation between 2022 and 2023. In 2022, the highest nodosite damage was recorded in Büyükbey (Samsat) and Şambayat (Besni), both with a damage scale of 5 (31%-40%), while the lowest damage was observed in Vartana (Adıyaman) and the Kahta Central district, where the damage scale was 2 (1%-10%). In 2023, an increase in population density was closely associated with a rise in damage levels. The highest damage was recorded in Büyükbey, Çaybaşı (Samsat), Şambayat (Besni), and Dut (Kahta), all showing a damage scale of 5. The lowest damage was observed in Üçgöz (Besni), with a scale of 2, while other surveyed areas exhibited damage levels ranging from 3 (11%-20%) to 4 (21%-30%).