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1
Effectiveness of polyethylene sheeting in controlling spruce beetles (Coleoptera: Scolytidae) in infested stacks of spruce firewood in Alaska /
by Holsten, Edward H.
Portland, OR (333 S.W. First Avenue, P.O. Box 3890, Portland 97208) : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1993

Government Document Book
2
Effect of ecosystem disturbance on diversity of bark and wood-boring beetles (Coleoptera: Scolytidae, Buprestidae, Cerambycidae) in white spruce (Picea glauca (Monch) Voss) ecosystems of Alaska /
by Werner, Richard A. (Richard Allen), 1936-
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2002

Government Document Book
3
The eastern larch beetle in Alaska /
by Werner, Richard A. (Richard Allen), 1936-
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1986

Government Document Book
4
Insects and diseases of Alaskan forests /
by Holsten, Edward H.
[Juneau, Alaska.?] : United States Department of Agriculture, Forest Service, Alaska Region : For sale by the Supt. of Docs., U.S. G.P.O., 1981

Government Document Book
5
Dispersal of the spruce beetle, Dendroctonus rufipennis, and the engraver beetle, Ips perturbatus, in Alaska /
by Werner, Richard A. (Richard Allen), 1936-
Portland, Or. (333 S.W. First Ave., P.O. Box 3890, Portland 97208-3890) : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1997

Government Document Book
6
Response of the engraver beetle, Ips Perturbatus, to semiochemicals in white spruce stands of interior Alaska /
by Werner, Richard A. (Richard Allen), 1936-
Portland, Or. (333 S.W. First St., P.O. Box 3890, Portland 97208-3890) : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 1993

Government Document Book
7
The spruce beetle in white spruce forests of Alaska /
by Werner, Richard A. (Richard Allen), 1936-
Portland Or. : Pacific Northwest Forest and Range Experiment Station, U.S. Dept. of Agriculture, Forest Service, 1977

Government Document Book
8
Use of semiochemicals of secondary bark beetles to disrupt spruce beetle attraction and survival in Alaska /
by Werner, Richard A. (Richard Allen), 1936-
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2002

Government Document Book
9
Use of semiochemicals of secondary bark beetles to disrupt spruce beetle attraction and survival in Alaska
by Werner, Richard A. (Richard Allen), 1936-
[Portland, Or.] : U.S. Dept. of Agriculture, Forest Service, Pacific Northwest Research Station, 2002

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Government Document Book
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