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EMERGENCE OF IPS PINI AND HYLURGOPS POROSUS (COLEOPTERA: SCOLYTIDAE) FROM DUFF AT THE BASE OF LODGEPOLE PINES (PINACEAE) KILLED BY MOUNTAIN PINE BEETLE (COLEOPTERA: SCOLYTIDAE)

Published online by Cambridge University Press:  31 May 2012

L. Safranyik ,
D.A. Linton  and
T.L. Shore
L. Safranyik*
Affiliation:
Pacific Forestry Centre, Canadian Forest Service, Natural Resources Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
D.A. Linton
Affiliation:
Pacific Forestry Centre, Canadian Forest Service, Natural Resources Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
T.L. Shore
Affiliation:
Pacific Forestry Centre, Canadian Forest Service, Natural Resources Canada, 506 West Burnside Road, Victoria, British Columbia, Canada V8Z 1M5
*
1Author to whom all correspondence should be addressed (E-mail: Isafrany@nrcan.gc.ca).
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Extract

Lodgepole pines, Pinus contorta var. contorta Engelmann, killed by mountain pine beetle, Dendroctonus ponderosae Hopkins, are often subsequently infested by other scolytid species (Safranyik et al. 1996). Ips pini (Say) breeds in the phloem region of the main bole and larger branches in areas not occupied by mountain pine beetle. Adults emerge in the fall and drop to overwinter in the duff near the bases of their brood trees (Safranyik et al. 1996). Hylurgops porosus (LeConte) infests lodgepole pine (Keen 1952; Bright 1976) stumps or severely weakened trees near the root collar and in large roots (Wood 1982). We examined the pattern of emergence of I. pini and H. porosus from the duff around infested trees to describe changes in density over distance from the trees.

Type
Articles
Information
The Canadian Entomologist , Volume 131 , Issue 6 , December 1999 , pp. 825 - 827
Copyright
Copyright © Entomological Society of Canada 1999

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References

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Safranyik, L., Shore, T.L., Linton, D.A. 1996. Ipsdienol and lanierone increase Ips pini Say (Coleoptera: Scolytidae) attack and brood density in lodgepole pine infested by mountain pine beetle. The Canadian Entomologist 128: 199–207Google Scholar
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