First Report of Sclerotium Rot of Foliage Ornamental Plants in Poland

摘要

Stem and leaf rot incited by Sclerotium rolfsii was found on Epipremnum aureum, Hedera helix, and Peperomia obtusifolia rooting cuttings. S. rolfsii was isolated from about 90% of the analysed plant materials. Isolate from E. aureum colonized all the parts of the 3 host plants as well as eustoma and lavender. Necrosis spread significantly faster on peperomia and the nonhost plants. The fungus produced dense, floccose, white mycelium with numerous, small, brown sclerotia. The optimum temperature for development was 30°C.