@inproceedings{KereselidzePilarskaUjmajuridzeetal.2023, author = {Kereselidze, M. and Pilarska, D. and Ujmajuridze, L. and Linde, Andreas and Guntadze, N. and Hajek, A.}, title = {Seasonal prevalence of Nosema maddoxi infection in Halyomorpha halys, an invasive pest of hazelnut orchards in Georgia}, series = {Acta Horticulturae}, booktitle = {Acta Horticulturae}, doi = {10.17660/ActaHortic.2023.1379.64}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:eb1-opus-8283}, pages = {449 -- 454}, year = {2023}, abstract = {The prevalence of the microsporidium Nosema maddoxi in populations of brown marmorated stink bug (Halyomorpha halys) from three sites in Guria and eight sites in Samegrelo, Georgia is described. Investigations were conducted on adults collected in fall and spring from fall 2020 to spring 2022. The prevalence of infection differed by both region and season. Total prevalence of N. maddoxi in adults from the Guria region was significantly higher than the Samegrelo region. Infection levels in fall were higher than in the spring in the Guria region, but inconsistent over seasons in the Samegrelo region. Infection levels did not differ by sex. We hypothesize that higher population densities and more adult aggregation in Guria compared with Samegrelo helps to explain the higher infection levels in Guria.}, language = {en} }