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First Report of Powdery Mildew on Corylus avellana caused by Phyllactinia guttata in Washington State
- Contorted hazelnut is an ornamental tree introduced to North America from Europe. In the fall of 2004 and 2005, powdery mildew caused by Phyllactinia guttata (Wallr.:Fr.) Lév. was observed on contorted hazelnut ('contorta') located on the campus of Washington State University, Pullman, and on several C. avellana trees (unknown cultivar) on the campus of the University of Washington, Seattle. This report documents for the first time the occurrence of P. guttata on C. avellana in both eastern and western Washington.
Hartney, S. , Glawe, D.A. , Dugan, F. , Ammirati, J.
Corylus avellana , ornamental trees , powdery mildew , plant pathogenic fungi , new geographic records , Washington
- Includes references
- Plant health progress 2005
- Plant Management Network
Journal Articles, USDA Authors, Peer-Reviewed
- Works produced by employees of the U.S. Government as part of their official duties are not copyrighted within the U.S. The content of this document is not copyrighted.