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Subject "Phytophthora diseases"
A range-wide assessment of Port-Orford-cedar (Chamaecyparis lawsoniana) on federal lands /
By: Betlejewski, Frank. - Casavan, Kirk C. - Stevens, Roderick D. - United States. - United States. - United States.
Publication info: Portland, Or. :Bureau of Land Management, Oregon State Office,
Contributed by: Bureau of Land Management (archive.org)
Subjects: California Cedar Diseases Forest health Oregon Phytophthora diseases Port Orford cedar Rangelands Trees