Search Results - Roth, Lewis F.

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  1. 1
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    Port-Orford-cedar root disease / by Roth, Lewis F.

    Published 1987
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  2. 2
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    Seven chemicals fail to protect ponderosa pine from Armillaria root disease in central Washington / by Filip, Gregory M., Roth, Lewis F.

    Published 1987
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    Government Document Book

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  3. 3
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    Resistance of ponderosa pine to western dwarf mistletoe in central Oregon / by Scharpf, Robert F., 1931-

    Published 1992
    Other Authors: “…Roth, Lewis F.…”
    Government Document Book

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  4. 4
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    Resistance of ponderosa pine to western dwarf mistletoe in central Oregon by Scharpf, Robert F., 1931-

    Published 1992
    Other Authors: “…Roth, Lewis F.…”
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  5. 5
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    Defect estimation for white fir in the Rogue River National Forest / by Aho, Paul E.

    Published 1978
    Other Authors: “…Roth, Lewis F.…”
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  6. 6
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    Response of dwarf mistletoe-infested ponderosa pine to thinning. by Barrett, James W. (James Willis), 1922-

    Published 1985
    Other Authors: “…Roth, Lewis F.…”
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  7. 7
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    Ecology, pathology, and management of Port-Orford-cedar (Chamaecyparis lawsoniana) / by Zobel, Donald B.

    Published 1985
    Other Authors: “…Roth, Lewis F.…”
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