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Survey for balsam woolly adegid in Washington and Oregon.Author(s): I. Ragenovich; B. Willhite; R. Mitchell; D. Overhulser; K. Ripley
Source: [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station
Publication Series: Brochures
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DescriptionBalsam woolly adelgid (BWA) is an introduced insect that has had a significant impact on Abies tree species in the Pacific Northwest. During the late 1950s and 1960s, it caused extensive mortality of grand fir (A. grandis), subalpine fir (A. lasiocarpa), and silver fir (A. amabilis), particularly in the Cascade Range. This insect also affects tree growth and reproduction, potentially decreasing host generation and the role of the host tree in local ecosystems.
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CitationRagenovich, I.; Willhite, B.; Mitchell, R.; Overhulser, D.; Ripley, K. 2002. Survey for balsam woolly adegid in Washington and Oregon. [Brochure]. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station
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