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Subject: Botryotinia sphaerosperma (Gregory) Buchwald found for the first time in North America
Date posted: October 16, 2003
Source: Disease Notes
In November 2002, disease symptoms were observed on eight cultivars of Asiatic hybrid lilies (Lilium sp.) in two fields in Carpinteria, California as well as on greenhouse grown Asiatic hybrid lilies in Nipomo, an adjacent county. Symptoms included necrotic leaf tips and spots on stems, with dark brown, water soaked lesions becoming lighter as they dried. These symptoms were not observed in Oriental hybrid lilies in the same nursery. The causal agent was identified as Botryotinia sphaerosperma (Gregory) Buchwald (anamorph Botrytis sphaerosperma), a fungal pathogen previously not know to occur in North America.

For the full story see:
Scheck, H.J., D.G. Fogle, and T.E. Tidwell. 2003. First report of Botryotinia blight of Asiatic Lily caused by Botryotinia sphaerosperma in North America. Plant Disease 87: 1396; published online as D-2003-0910-01N.