Browsing by Author "Algi G."

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Distribution and occurrence of microsporidian pathogens of the willow flea beetle, Crepidodera aurata (Coleoptera: Chrysomelidae) in North Turkey
(2015-01-01) Yaman M.; Algi G.; Giiner B.G.; Ünal S.
In this study, microsporidian pathogens in Crepidodera aurata populations were investigated. Totally 1,728 C. aurata adults were examined for microsporidian pathogens and 78 of them were found to be infected. Two species of microsporidia; Microsporidium sp. 1 and Microsporidium sp. 2 were observed in the C. aurata populations from ten localities in North Turkey. They show considerable difference from each other in the spore morphology and dimension, infection rate and host locality. The spores of Microsporidium sp. 1 were oval in shape and measured from 3.66 to 5.66 urn in length and from 1.35 to 2.22 μm in width (n=50). The spores of Microsporidium sp. 2 were slightly curled and measured from 2.44 to 3.55 μm in length and from 1.25 to 1.55 μm in width (n=50). These microsporidia were recorded from C. aurata for the first time. Here we present occurrence and distribution of two microsporidia in C. aurata populations as natural potentially suppressing factors.
First record, occurrence and distribution of entomopathogens in populations of the European cockchafer, Melolontha melolontha (Coleoptera: Scarabaeidae) in Turkey
(2016-01-01) Yaman M.; Algi G.; Güner B.; Ertürk Ö.; Ünal S.; Radek R.
In the present study, the first record, occurrence and distribution of three different pathogens: two protistan pathogens; a coccidian and a neogregarine, and an entomopoxvirus from the European cockchafer, Melolontha melolontha L. (Coleoptera: Scarabaeidae) are given. A neogregarine pathogen was recorded for the first time from M. melolontha populations. A coccidian pathogen, Adelina melolonthae was recorded for the first time for Turkey. An entomopoxvirus was recorded from a new locality, Kocaeli in Turkey, The infections caused by pathogens were observed in the haemolymph and fat body of the adults and larvae. The occurrence and distribution of these pathogens in the M. melolontha populations are also presented.
Survey of pathogens and parasites of the engraver beetle Ips acuminatus (Gyllenhal, 1827) (Coleoptera: Curculionidae: Scolytinae) in Turkey
(2016-01-01) Yaman M.; Algi G.; Ünal S.; Güner B.
Pathogens and parasites of Ips acuminatus were studied for the first time in Turkey. In total, 530 beetles were examined in 2007, 2008 and 2014. Two pathogens, Mattesia sp. (Neogregarinorida: Lipotrophidae), Chytridiopsis cf. typographi (Microsporea: Chytridiopsidae) and unidentified nematodes were found. The prevalence of these pathogens and parasites were 2.4, 0.9 and 52.1%, respectively. While nematodes were observed during all years, Mattesia sp. was observed only in 2008, and C. typographi in 2008 and 2014.