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    Author(s): Alex L. Shigo
    Date: 1966
    Source: Research Note NE-49. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-7
    Publication Series: Research Note (RN)
    Station: Northeastern Research Station
    PDF: View PDF  (1.01 MB)

    Description

    The purpose of this note is to give a brief pictorial description of the internal defects in paper birch (Betula papyrifera Marsh.) and yellow birch (B. alleghaniensis Britt.) that are associated with external signs of infestation by the ambrosia beetle Xyloterinus politus (fig. 1). The information was gained during studies of trees growing in the White Mountains of New Hampshire.

    Publication Notes

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    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Shigo, Alex L. 1966. Defects in birch associated with injuries made by Xyloterinus politus Say. Research Note NE-49. Upper Darby, PA: U.S. Department of Agriculture, Forest Service, Northeastern Forest Experiment Station. 1-7

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