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1

Chemical and biological controls in forestry : based on a symposium sponsored by the division of pesticide chemistry at the 185th meeting of the american chemical society, seattle,...

Washington, DC : American Chemical Society, 1984

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Book

2

Laminated root rot : a guide for reducing and preventing losses in Oregon and Washington forests /

by Hadfield, James S.
[Portland, Or.] : Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1977

Government Document Book

3

The Douglas-fir beetle /

by Bedard, William D.
Washington, D.C. : U.S. Dept. of Agriculture, 1950

Government Document Book

4

Losses associated with Douglas-fir and true fir tops killed by western spruce budworm in eastern Washington /

by Aho, Paul E.
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Forest and Range Experiment Station, 1984

Government Document Book

5

Tree hoppers and their control in the orchards of the Pacific Northwest /

by Yothers, M. A. (Merrill Arthur), 1883-1984
Washington, D.C. : United States Department of Agriculture, 1930

Government Document Book

6

Seven chemicals fail to protect ponderosa pine from Armillaria root disease in central Washington /

by Filip, Gregory M.
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1987

Government Document Book

7

Root diseases in Oregon and Washington conifers /

Portland, Or. : USDA Forest Service, Pacific Northwest Region Forest Pest Management, 1986

Government Document Book

8

Laminated root rot : a guide for reducing and preventing losses in Oregon and Washington forests.

by Hadfield, James S.
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region, 1985

Government Document Book

9

Sampling Western Spruce Budworm larvae by frequency of occurrence on lower crown branches /

by Mason, Richard R.
[Portland, Or. (319 S.W. Pine St., P.O. Box 3890, Portland 97208)] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990

Government Document Book

10

Rx for Abies : silvicultural options for diseased firs in Oregon and Washington /

by Filip, Gregory M.
[Portland Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1990

Government Document Book

11

Aiding blister rust control by silvicultural measures in the western white pine type /

by Moss, Virgil D., 1908-
Washington, D.C. : U.S. Dept. of Agriculture, 1953

Government Document Book

12

Indian paint fungus : a method for recognizing and reducing hazard in advanced grand and white fir regeneration in eastern Oregon and Washington /

by Filip, Gregory M.
[Portland, Or.?] : U.S. Dept. of Agriculture, Pacific Northwest Region, Forest Service, 1983

Government Document Book

13

Radial growth of grand fir and douglas-fir 10 years after defoliation by the douglas-fir tussock moth in the Blue Mountains outbreak /

by Wickman, Boyd E.
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1986

Government Document Book

14

Natural regeneration 10 years after a Douglas-fir tussock moth outbreak in northeastern Oregon /

by Wickman, Boyd E.
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1986

Government Document Book

15

A field guide to important forest insects and diseases of Oregon and Washington /

by Pettinger, L. F.
[Portland, Or.?] : Forest Pest Management, State and Private Forestry, Pacific Northwest Region, Forest Service, U.S. Department of Agriculture, 1982
1972, updated 1982.

Government Document Book

16

Growing healthy seedlings : identification and management of pests in Northwest forest nurseries /

[Portland, OR] : [Corvallis, OR] : Forest Pest Management, U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Region ; Forest Research Laboratory, College of Forestry, Oregon State University, 1990

Government Document Book

17

Occurrence of armillaria spp. in forests of the northern Rocky Mountains /

by McDonald, G. I. (Geral I.), Martin, N. E., Harvey, A. E.
[Ogden, Utah] : U.S. Dept. of Agriculture, Forest Service, Intermountain Research Station, 1987

Government Document Book

18

Field guide to the common diseases and insect pests of Oregon and Washington conifers /

by Goheen, Ellen Michaels
[Portland, Or.] : Washington, DC : USDA Forest Service, Pacific Northwest Region ; For sale by the Supt. of Docs., U.S. G.P.O., 2006

Government Document Book

19

Field guide to the common diseases and insect pests of Oregon and Washington conifers /

by Goheen, Ellen Michaels, Willhite, Elizabeth A.
[Portland, Or.] : United States Department of Agriculture, Forest Service, Pacific Northwest Region, 2021
Revised edition, 2021.

Government Document Book

20

Silviculture and Swiss needle cast : research and recommendations /

Corvallis, Or. : College of Forestry, Forest Research Laboratory, Oregon State University, 2000

Book

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