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Bark beetle conditions, Northern Region 1987


, : Bark beetle conditions, Northern Region 1987. Report Northern Region, USDA Forest Service ( 88-4): i + 21 pp.

The first report of a series giving an account of the location of major infestations, the damage caused and predicted course of local outbreaks of Dendroctonus ponderosae, D. pseudotsugae, D. brevicomis, D. rufipennis, Ips pini, Scolytus ventralis and Dryocoetes confusus on conifers in National Forests of Montana and Idaho.


Accession: 002308223

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Related references

Gibson, K.E.; Oakes, R.D., 1990: Bark beetle conditions. Northern region 1989. The results of aerial and ground surveys of forests in Idaho and Montana in 1989 are presented and compared to the results of similar surveys in 1988. Dendroctonus ponderosae infested a smaller area of the region in 1989 than in 1988. Populations...

Gibson, K.; Oakes, B., 1994: Bark beetle conditions, Northern Region, 1993. Notes are given, by pest and by reporting area, on damage caused by 8 species of bark beetles (Dendroctonus spp., Ips pini, Scolytus ventralis, Dryocoetes confusus) to conifers (Pinus spp., Abies spp., Pseudotsuga menziesii and Picea engelmannii)...

Gibson, K.; Oakes, B., 1993: Bark beetle conditions. Northern Region 1992. Data on damage caused by outbreaks of bark beetles (Scolytidae) in stands of conifers in the northern region of the USA (Montana, Idaho) in 1992 are presented.

Mcgregor, M.; Gibson, K.; Bennett, D., 1979: Bark beetle conditions Northern Region, 1978 1. Report (79-4)

Gibson, K.; Oakes, R., 1989: Bark beetle conditions northern region 1988. Report US Forest Service Northern Region Timber Cooperative Forestry and Pest Management: 89 (89-7)

Gibson, K.E.; Oakes, R.D., 1989: Forest Pest Management. Bark beetle conditions, Northern Region 1988. This report on the incidence and injuriousness of scolytids on forest trees in the northern region of the USA is devoted mainly to Dendroctonus ponderosae in 12 national forests, 3 state forests, and other forest areas in 1988. While this species...

Gibson, K.-Edward; Kegley, S.; Oakes, B., 1997: Western balsam bark beetle activity and flight periodicity in the Northern Region

Sanchez Martinez, G.; Wagner, M.R., 2002: Bark beetle community structure under four ponderosa pine forest stand conditions in northern Arizona. We studied the bark beetle guild (Coleoptera: Scolytidae) in the ponderosa pine forests of northern Arizona to explore if the species assemblages and relative abundance differ between managed and unmanaged stands. Four stand conditions were assess...

Higby, PK.; Stock, MW., 1982: Genetic relationships between two sibling species of bark beetle (Coleoptera: Scolytidae), Jeffrey pine beetle and mountain pine beetle, in northern California. The genetic relationship between 2 sibling bark-beetle species from northern California, Dendroctonus jeffreyi Hopk. and D. ponderosae Hopk., was examined by electrophoresis. The genetic differences found between D. jeffreyi and D. ponderosae supp...

Higby, Pamela, K., 1981: Genetic relationships between two sibling bark beetle species, Jeffrey Pine Beetle (Dendroctonus Jeffreyi Hopkins) and Mountain pine beetle (D. Ponderosae Hopkins) in northern California