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    Author(s): Dave L. Mausel; Roy G. Van Driesche; Joseph S. Elkinton
    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: 43.
    Publication Series: Other
    Station: Northern Research Station
    PDF: View PDF  (120.42 KB)

    Description

    A fundamental difficulty in classical biological control is to ensure that natural enemy releases have appropriate genetic quality, which, if lacking, may reduce the species’ adaptability to the new environment resulting in lowered impact or even failure. “Biotypes” of Laricobius nigrinus (Coleoptera: Derodontidae), a predator of Adelges tsugae (Hemiptera: Adelgidae), may provide an example of this phenomenon.

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    Citation

    Mausel, Dave L.; Van Driesche,Roy G.; Elkinton, Joseph S. 2009. Cold tolerance and host range comparisons between coastal and inland western United States populations of Laricobius nigrinus

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