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Filtering by: Subject Ponderosa pine -- Diseases and pests -- Oregon Degree Level Bachelor's Commencement Year Unknown

The western pine bark beetle problem

Creator:

Winslow, L. P.

Resource Type:

Undergraduate Thesis

Full Text:

frequent. The insect attacks Ponderosa Pine, Coulter Pine (Pinus Coultert), and possibly Sugar Pine
The western pine beetle and its destructiveness to western yellow pine : silviculture project 1947

Creator:

Vandal, Cecil G.

Resource Type:

Undergraduate Thesis

Full Text:

ponderosa pine forests. This insect is called hark beetle because it in habits tne inner layer of bark and
Report on sanitation-salvage beetle control in the Ponderosa pine forests of the Pacific Northwest

Creator:

Johnson, Norman E.

Resource Type:

Undergraduate Thesis

Full Text:

ponderosa pine in Washington and Oregon. In addition to the direct losses, there ay be indirect losses t