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Filtering by: Subject Ponderosa pine -- Diseases and pests -- Oregon Decade 1930-1939 Resource Type Undergraduate Thesis

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 insect factor in ponderosa pine management in Region 6 and Region 5

Creator:

Callaghan, Joseph

Resource Type:

Undergraduate Thesis

Full Text:

determining, in the ponderosa pine forests of northeastern California, Oregon and Jashington, the relative
The insect problems of lodgepole pine forests of eastern Oregon and Washington

Creator:

McLean, Edward

Resource Type:

Undergraduate Thesis

Full Text:

Oregon and Washington THE INSECT PROBLEMS 0F LODGEI'OLE PINE FORESTS OF EASTERN OREGON AND