First record of Pythium catenulatum and Pythium okanoganense on turfgrasses in Iran

To study the role of Pythium species as the turf pathogenic agents, during theyears 2005 and 2006, diseased samples and soil samples from green spaces andsport fields were collected from different regions of Tehran province. Fromisolates identified, Pythium catenulatum Matthews has been reported fromturfgrasses in other countries, but our study is the first report of this species inIran. Pythium okanoganense Lipps has been isolated from soil in Iran but hasn’tbeen recorded from turfgrasses in Iran and other countries yet.