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    Author(s): David W. Williams; Kelley E. Zylstra; Victor Mastro
    Date: 2009
    Source: In: McManus, Katherine A; Gottschalk, Kurt W., eds. Proceedings. 20th U.S. Department of Agriculture interagency research forum on invasive species 2009; 2009 January 13-16; Annapolis, MD. Gen. Tech. Rep. NRS-P-51. Newtown Square, PA: U.S. Department of Agriculture, Forest Service, Northern Research Station: 61-62.
    Publication Series: Other
    Station: Northern Research Station
    PDF: View PDF  (124.88 KB)


    The European woodwasp, Sirex noctilio F., was discovered in Oswego County, New York, in the autumn of 2004. The woodwasp is apparently not under effective natural control, is already distributed over a wide area in North America, and because it is a killer of relatively healthy trees, poses a serious threat to pine forests and plantations in the United States and Canada if not controlled. Its most effective natural enemy is a parasitic nematode, Beddingia (Deladenus) siricidicola (Bedding).

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    Williams, David W.; Zylstra, Kelley E.; Mastro, Victor. 2009. Biological control of Sirex noctilio in North America by Beddingia siricidicola: 2008 update

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