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1939. A Brief Review of Forest Insect Problems in the Pacific Northwest. Page 8. Figure 3. Map of Major Projects 1938-1939. Forest Insect Laboratory, Portland, Oregon.

A Brief Review of Forest Insect Problems in the Pacific Northwest. Page 8. Figure 3. Map of Major Projects 1938-1939. Forest Insect Laboratory, Portland, Oregon.

 

The following text is from page 9 in the publication.

Figure 3 Legend:

"Major Projects 1938-1939

Forest Insect Laboratory

Portland, Oregon

Note: Numbers below refer to project locations on the accompanying map.

1. Headquarters Laboratory, Portland, Oregon.

Administration and supervision.

Control headquarters for all research projects.

General service work and dissemination of information on control of insects affecting forest and shade trees, and forest products.

Douglas-fir Region

Forest Insect Cooperative Services and Control

2. Annual examination of fire-killed Douglas-fir in the Tillamook Burn of 1933 to determine the rate of deterioration.

3. Annual inspection of forest insect conditions in Mt. Rainier National Park.

Forest Insect Research

4. Control of the Douglas-fir bark beetle in selectively cut areas.

5. Biological studies of ambrosia beetles.

6. Carpenter ant control experiments and rearing at field laboratory located at Lathrop Pack Demonstration Forest.

Ponderosa Pine Region

Forest Insect Cooperative Surveys and Controls

7. Supervision of annual regional western pine beetle surveys of federal, state, and private-owned lands. The portions of the Region covered in 1938 are shown on the accompanying map, and the areas surveyed by BEPQ are designated by (7).

8. Annual inspection of forest insect conditions in Crater Lake National Park.

Forest Insect Research

9. Direct natural control of western pine beetle populations through low temperatures.

10. Determination of the factors of trees and area hazard contributing to western pine beetle infestations.

11. The influences of selective logging on susequent insect damage.

12. Study of climatic relationships with tree rings."

 

Full citation: A Brief Review of Forest Insect Problems in the Pacific Northwest. Presented to the Joint Congressional Committee on Forestry. December 12-13, 1939. by F.P. Keen, Senior Entomologist, in Charge. Portland Forest Insect Laboratory. USDA, Bureau of Entomology and Plant Quarantine, Forest Insect Investigations. Portland, Oregon. 11 pages.

 

Photo by: Unknown

Date: December 12, 1939

 

Credit: USDA Forest Service, Region 6, State and Private Forestry, Forest Health Protection.

Collection: FHP digital collection; Regional Office; Portland, Oregon.

 

Image provided by USDA Forest Service, Pacific Northwest Region, State and Private Forestry, Forest Health Protection: www.fs.usda.gov/main/r6/forest-grasslandhealth

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