First Report of Leaf Blight and Stem Dieback of St. John's-Wort Caused by Diploceras hypericinum in Oregon

St. John's-wort, Hypericum perforatum L., was formerly considered a noxious weed in the Pacific Northwest and is now grown commercially for its medicinal properties. In May 1999, plants from a 5-ha field in Jefferson County, OR, were observed with yellowing leaves and stem dieback. Lower leaves...

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Veröffentlicht in:	Plant disease. - 1997. - 84(2000), 11 vom: 31. Nov., Seite 1250
1. Verfasser:	Putnam, M L (VerfasserIn)
Format:	Online-Aufsatz
Sprache:	English
Veröffentlicht:	2000
Zugriff auf das übergeordnete Werk:	Plant disease
Schlagworte:	Journal Article