A brief report on the symptoms and lifecycle of several rusts known to attack rhododendrons. The disease first appeared in Oregon in 1955 and had become a serious problem for growers of susceptible varieties by the time this article was written.
To view the article, click on the link attachment.
Aug.-Sept. 1977 Vol. 1, Issue 16 Pages 6-7
Fred M. Zeitoun Oregon Department of Agriculture Salem, OR 97310