25 Haz 2025 Çarşamba
Morphological heterogeneity of Otiorhynchus sulcatus (Fabricius, 1775) population (Coleoptera: Curculionidae: Entiminae) in the USA
Abstract : Otiorhynchus (Dorymerus) sulcatus (Fabricius, 1775), commonly known as the Black Vine Weevil in the USA, is a serious parthenogenetic pest throughout the World and was introduced from Europe to the Nearctic region over 100 years ago. Taking this into account, I have evaluated the possibility that distant populations of the species may have been separated in the Nearctic region since that time. The study revealed heterogeneity of O. sulcatus populations from distant regions of the USA: Northeastern (NW), North Central (NC), and Northwestern (NW) based on the female genitalia morphology. The data suggest that the NW population of O. sulcatus is significantly different from both the NE and the NC populations, whereas the NC population is similar to the NE one based on female sternite VIII parameters. This characterization of the structure of O. sulcatus population may contribute to a better understanding of the changes within populations and help to adapt local pest management measures to better control of agricultural pests.