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Last edited anonymously
August 19, 2008 | History
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Norman E. Johnson

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  • Cover of: Ambrosia-beetle infestation of down coniferous timber in Benton County, Oregon

    First published in 1957 2 editions in 1 language
    Not in Library

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  • Cover of: Report on sanitation-salvage beetle control in the Ponderosa pine forests of the Pacific Northwest

    First published in 1955 2 editions in 1 language
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  • Cover of: balsam woolly aphid on young Pacific silver fir in Washington

    First published in 1968 1 edition in 1 language
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  • Cover of: The balsam woolly aphid problem in Oregon and Washington

    First published in 1957 1 edition in 1 language — 1 previewable
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  • Cover of: Distribution of Sitka spruce weevil eggs on leaders of open grown Sitka spruce in southwest Washington

    First published in 1965 1 edition in 1 language
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  • Cover of: Douglas-fir cone insects and their control

    First published in 1967 1 edition in 1 language
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  • Cover of: Effectiveness of three systemic insecticides for Douglas-fir cone and seed insect control

    First published in 1966 1 edition in 1 language
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  • Cover of: test of ten insecticides for controlling the hemlock looper

    First published in 1965 1 edition in 1 language
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Subjects
Diseases and pests, Control, Balsam woolly adelgid, Douglas fir, Research, Abies amabilis, Ambrosia beetles, Aphids, Conifers, Eggs, Fir, Forest management, Hemlock looper, Insect pests, Insecticides, Lumbering, Ponderosa pine, Seeds, Sitka spruce, Systemic insecticides, Western pine beetle, White pine weevil
Places
Washington (State), Oregon, Benton County, Canada, Pacific Northwest

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ID Numbers

  • OLID: OL2136623A

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History

Download catalog record: RDF / JSON
August 19, 2008 Edited by an anonymous user fix author name
April 1, 2008 Created by an anonymous user initial import