Microsporidian infections in Lymantria dispar L. (Lepidoptera, Lymantriidae) populations in Serbia
2006
Glavendekic, M.,University of Belgrade, Belgrade (Serbia). Faculty of Forestry | Pilarska, D.,Bulgarian Academy of Sciences, Sofia (Bulgaria), Institute of Zoology | Mihajlovic, Lj.,University of Belgrade, Belgrade (Serbia). Faculty of Forestry | Linde, A.,University of Applied Science, Eberswalde (Germany) | Kolling, T.,University of Applied Science, Eberswalde (Germany) | Hoch, G.,BOKU - University of Natural Resources and Applied Life Sciences, Vienna (Austria). Institute of Forest Entomology, Forest Pathology and Forest Protection
Microsporidia are common parasites of Lymantria dispar and are considered as important regulators of the insect population density. Populations of Lymantria dispar throughout Europe have been monitored. So far, more than 20 different microsporidian isolates, belonging to at least 5 different species from 3 genera, were found. In 2005 and 2006, four Lymantria dispar populations in Serbia were investigated for microsporidian infections. We found two microsporidian isolates belonging to the genera Vairimorpha and Endoreticulatus. The prevalence ranged from 1.58% for the Endoreticulatus isolate to 18.08 for the Vairimorpha isolate. Preliminary histological results indicate that the Vairimorpha isolate is very similar to Vairimorpha dispar and the Endoreticulatus isolate to Endoreticulatus schubergi.. Spores of the Vairimorpha isolate from a population in the region of Trstenik (Serbia), which had been stored at - 20 deg C in frozen larvae for one year, were still viable. The two microsporidia were found for the first time in Serbia and are new species for the Serbian fauna.
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