Canadian Forest Service Publications

Implications of non-indigenous insect introductions in forest ecosystems. 2001. Humble, L.M.; Allen, E.A. Pages 45-55 in A.M. Liebhold, M.L. McManus, I.S. Otvos, and S.L.C. Fosbroke, editors. Proceedings - Integrated management and dynamics of forest defoliating insects, August 15-19, 1999, Victoria BC, Canada. USDA Forest Service, Northeastern Research Station, Newtown Square, PA, General Technical Report NE-277.

Year: 2001

Issued by: Pacific Forestry Centre

Catalog ID: 18313

Language: English

Series: USDA General Technical Report

CFS Availability: Order paper copy (free)

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The status of non-indigenous introductions as forest pests in Canada and ongoing research on species associated with solid wood packaging are briefly reviewed. Introductions began soon after the start of European colonization, with many of the early arrivals being of little consequence as pests. Since then, however, a significant number of serious forest insect pests and diseases have reached North America. Some have forever altered forest ecosystems. Through containment rearing of solid wood packaging intercepted in the port of Vancouver, British Columbia, we demonstrate that serious forest pests continue to arrive in association with a variety of commodities. In research studies in urban reserves and forests adjacent to the port, we have found evidence that non-indigenous species of ambrosia beetles and woodborers now predominate in some communities. The potential effects of these species on forest ecosystems are unknown. Adoption and enforcement of regulations to ensure that only pest-free solid wood packaging is used in international trade are required before introductions of invasive bark and woodborers will cease.