Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): W.J. Buckhorn; Paul G. Lauterbach
    Date: 1957
    Source: PNW Old Series Research Notes No. 142, p. 1-2
    Publication Series: Research Note (RN)
    Station: Pacific Northwest Research Station
    PDF: View PDF  (170 KB)

    Description

    An outbreak of the balsam woolly aphid (Chermes piceae Ratz.) is damaging and killing Pacific silver fir, subalpine fir, and grand fir extensively in western Washington and Oregon. It is most serious in southern Washington where an outbreak on Pacific silver fir was discovered in 1954. Since effective methods for controlling this insect under forest conditions have not yet been developed, all that can now be done to minimize its destruction is to salvage the dead and dying trees. Because of rapid deterioration of dead timber, early detection of infestation is essential to enable logging of affected stands before values are lost.

    Publication Notes

    • You may send email to pnw_pnwpubs@fs.fed.us to request a hard copy of this publication.
    • (Please specify exactly which publication you are requesting and your mailing address.)
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.

    Citation

    Buckhorn, W.J.; Lauterbach, Paul G. 1957. Timing of aerial surveys for the balsam woolly aphid. PNW Old Series Research Notes No. 142, p. 1-2

    Related Search


    XML: View XML
Show More
Show Fewer
Jump to Top of Page
https://www.fs.usda.gov/treesearch/pubs/25790