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    Author(s): I. Ragenovich; B. Willhite; R. Mitchell; D. Overhulser; K. Ripley
    Date: 2002
    Source: [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station
    Publication Series: Brochures
    PDF: View PDF  (427 KB)

    Description

    Balsam woolly adelgid (BWA) is an introduced insect that has had a significant impact on Abies tree species in the Pacific Northwest. During the late 1950s and 1960s, it caused extensive mortality of grand fir (A. grandis), subalpine fir (A. lasiocarpa), and silver fir (A. amabilis), particularly in the Cascade Range. This insect also affects tree growth and reproduction, potentially decreasing host generation and the role of the host tree in local ecosystems.

    Publication Notes

    • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication.
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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

    Ragenovich, I.; Willhite, B.; Mitchell, R.; Overhulser, D.; Ripley, K. 2002. Survey for balsam woolly adegid in Washington and Oregon. [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station

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https://www.fs.usda.gov/treesearch/pubs/4990