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  1. Dispersal flight and attack of the spruce beetle, Dendroctonus rufipennis, in south-central Alaska.

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    Author(s): Edward H. Holsten; John S. Hard
    Date: 2001
    Source: Res. Pap. PNW-RP-536. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 13 p
    Publication Series: Research Paper (RP)
    Station: Pacific Northwest Research Station
    DOI: https://doi.org/10.2737/PNW-RP-536
    PDF: View PDF  (1.94 MB)

    Description

    Data from 1999 and 2000 field studies regarding the dispersal flight and initial attack behavior of the spruce beetle (Dendroctonus rufipennis Kirby) are summarized. More dispersing beetles were trapped in flight near the middle to upper tree bole than the lower bole. There were no significant differences between trap location and ambient temperatures. Initial attacks, however, were concentrated on the lower tree bole. Dispersal flight preceded initial attacks by 1 to 2 weeks.

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    Citation

    Holsten, Edward H.; Hard, John S. 2001. Dispersal flight and attack of the spruce beetle, Dendroctonus rufipennis, in south-central Alaska. Res. Pap. PNW-RP-536. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 13 p

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    Keywords

    Bark beetles, Dendroctonus rufipennis, dispersal, flight, attack patterns, white spruce, Picea glauca, Lutz spruce, Picea X lutzii, Alaska (south-central), Kenai Peninsula

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