Isolation of white rot, Sclerotinia sclerotiorum, causing leaf necrosis on Tradescantia fluminensis in New Zealand

摘要

Sclerotinia sclerotiorum is reported from diseased plants of Tradescantia fluminensis. The fungus was isolated from necrotic leaf lesions on observed plants that were infesting parkland near Auckland, New Zealand. Subsequent reinoculation of S. sclerotiorum onto leaf and stem tissue satisfied Koch's postulates that T. fluminensis is a host of this isolate.