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Forestry
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Bousfield, Wayne E.
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Conifers -- Diseases and pests -- Idaho -- Nezperce National Forest
Remove constraint Subject: Conifers -- Diseases and pests -- Idaho -- Nezperce National Forest
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3. [Article] Observations on the impact of western spruce budworm on the Nezperce National Forest, Idaho, 1972
Aerial surveys of the Nezperce National Forest in Idaho revealed 138,692 acres of aerially visible top kill and tree mortality due to repeated defoliation by western spruce budworm, Choristoneura occidentalis ...Citation