Canadian Forest Service Publications

Forest insect and disease conditions in west-central Canada in 1995 and predictions for 1996. 1996. Brandt, J.P.; Knowles, K.R.; Larson, R.M.; Ono, H.; Walter, B.L. Natural Resources Canada, Canadian Forest Service, Northwest Region, Northern Forestry Centre, Edmonton, Alberta. Information Report NOR-X-347.

Year: 1996

Issued by: Northern Forestry Centre

Catalog ID: 11638

Language: English

Series: Information Report (NoFC - Edmonton)

Availability: Order paper copy (free), PDF (download)

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Abstract

Forest insect and disease conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories are summarized for 1995. Ground and aerial surveys included mapping pest infestations, trapping pests using pheromone-baited traps, conducting field pest collections and identifications, measuring damage intensity, and updating of pest distributions and their hosts throughout the study area. Infestations of and defoliation by spruce budworm, forest tent caterpillar, large aspen tortrix, aspen leafroller, mountain pine beetle, spruce beetle, Douglas-fir beetle, lodgepole pine dwarf mistletoe, satin moth, gypsy moth, and Dutch elm disease are discussed and compared to 1994 levels, as are other pests specifically affecting forest nurseries. An update of surveys for acid rain symptoms in permanently established Acid Rain National Early Warning System plots is also reported. Other noteworthy insects, diseases, and tree damage agents are discussed in tabular form. Forecasts of spruce budworm, jack pine budworm, and forest tent caterpillar populations are reported for 1996.