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DIVERSITY OF<i> SITONA</i> SPECIES (COLEOPTERA, CURCULIONIDAE) IN CULTIVATED PLANTS BELONGING TO THE FABACEAE FAMILY

2023    Gozuacik, C.

Sitona species are significant because they cause damage by feeding on shoots and leaves of Fabaceae plants. In this study, dominant species and intensity of Sitona in alfalfa, sainfoin, vetch, fodder pea, red lentil, and fenugreek plants cultivated in the Eastern and Southeastern Anatolia regions between April-July 2020-2021 were investigated. Samples were collected with a sweep net from 209 fields in 10 provinces of both regions. As a result of surveys, a total of 5168 individuals belonging to Coleositona and Sitona genus (Coleoptera: Curculionidae) were collected from six species of crops grown in two regions. Among them, 11 species were recorded from alfalfa, seven from red lentil, six from vetch, six from sainfoin, four from fenugreek, and four from fodder pea. S. macularius was the most dominant and abundance species in red lentil, vetch, fodder pea, sainfoin and fenugreek were 92.6%, 67.2%, 73.3%, 97.3% and 44.4%, respectively. In alfalfa too, the most dominant and abundant species was S. humeralis with 51.3%. The values of the Margalef diversity index showed minor differences between plant varieties. The Shannon-Weaver diversity index varied between 0.12 and 1.41. The maximum species diversity was recorded in alfalfa, whereas the minimum was observed in fodder pea and fenugreek plants.