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    Author(s): Gene D. Amman; Gerhard F. Fedde
    Date: 1971
    Source: Res. Pap. SE-148. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 6 p.
    Publication Series: Research Paper (RP)
    Station: Southeastern Forest Experiment Station
    PDF: View PDF  (115 KB)

    Description

    Infestations of the balsam woolly aphid, Adelges piceae (Ratz.), on European silver fir trees in a plantation were observed over a 7-year period. Infestations were usually light, but occasionally increased to heavy. Heavy infestations declined within 1 or 2 years without killing the trees or causing them apparent damage.

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    Citation

    Amman, Gene D.; Fedde, Gerhard F. 1971. Infestation Trends of Balsam Woolly Aphid in an Abies Alba Plantation in North Carolina. Res. Pap. SE-148. Asheville, NC: U.S. Department of Agriculture, Forest Service, Southeastern Forest Experiment Station. 6 p.

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https://www.fs.usda.gov/treesearch/pubs/3233