Dispersal of the spruce beetle, Dendroctonus rufipennis, and the engraver beetle, Ips perturbatus, in Alaska.

Richard A. Werner; Edward H. Holsten

doi:10.2737/PNW-RP-501

Treesearch

Dispersal of the spruce beetle, Dendroctonus rufipennis, and the engraver beetle, Ips perturbatus, in Alaska.

Informally Refereed

Authors:

Richard A. Werner, Edward H. Holsten

Year:

1997

Type:

Research Paper

Station:

Pacific Northwest Research Station

DOI:

https://doi.org/10.2737/PNW-RP-501

Source:

Res. Pap. PNW-RP-501. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p

Download (PDF 739 KB)

Download (PDF 739 KB): https://research.fs.usda.gov/download/treesearch/26877.pdf

Abstract

Mark-release-recapture experiments were performed with spruce beetles (Dendroctonus rufipennis (Kirby)) and Ips engraver beetles (Ips perturbatus (Eichhoff)) to determine distance and direction of dispersal. The recapture rate of beetles marked with fluorescent powder was extremely low. Most I. perturbatus beetles dispersed up to 30 m from their overwintering sites compared to most D. rufipennis, which dispersed from 90 to 300 m. Ips perturbatus beetles were caught up to 90 m and D. rufipennis up to 600 m from the point of release.

Keywords

bark beetles, Dendroctonus rufipennis, Ips perturbatus, dispersal, insect management, pheromones, Alaska

Citation

Werner, Richard A.; Holsten, Edward H. 1997. Dispersal of the spruce beetle, Dendroctonus rufipennis, and the engraver beetle, Ips perturbatus, in Alaska. Res. Pap. PNW-RP-501. Portland, OR: U.S. Department of Agriculture, Forest Service, Pacific Northwest Research Station. 8 p