ORGANISMS AFFECTING THE HEALTH OF TYPHA SPP. IN THE LITTORAL ZONE OF LAKES IN DRAWA NATIONAL PARK (NW POLAND)

摘要

Mycological analyses of diseased shoots of lesser bulrush (Typha angustifolia) and common bulrush (T. latifolia) were made in the field and laboratory in 2009 and 2010. The plants occur in the littoral zone of three lakes in Drawa National Park (Czarne, Plociczno, Zdroje) in the Typhaetum angustifoliae and T. latifoliae associations. It was shown that fungi (30 taxa: 28 on T. angustifolia and 10 on T. latifolia) and the beetle (Donacia crassipes) may affect the health of Typha plants. Phaeosphaeria eustoma, Phoma typharum, Pyrenophora typhicola and Scolecosporiella typhae were isolated from necrotic leaf tissues of Typha plants. These are the first records of the mentioned fungi on Typha in Poland. Larvae of D. crassipes were shown to be vectors ofCladosporium cladosporioides, Phoma typharum and Phyllosticta typhina in Typha plants.