Disease Resistant Pyracantha for the Pacific Northwest
The release of disease resistant varieties of Pyracantha for the Pacific Northwest prompted a study investigating the plants resistance to frost, suitable cultural characteristics, and required plant maintenance. The authors discuss the study and it's results.
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Dec. –1977 Jan. – 1978 Vol. 1, Issue 18 Pages 4-6
W.E. Vassey C.J. Gould G. F. Ryan Western Washington Research and Extension Center Washington State University, Puyallup, WA 98371