Canadian Forest Service Publications
Forest insect and disease conditons in west-central Canada in 1993 and predictions for 1994. 1994. Brandt, J.P. Natural Resources Canada, Canadian Forest Service, Northwest Region, Northern Forestry Centre, Edmonton, Alberta. Information Report NOR-X-335. 39 p.
Issued by: Northern Forestry Centre
Catalog ID: 11628
Forest insect and disease conditions in Alberta, Saskatchewan, Manitoba, and the Northwest Territories are summarized for 1993. Spruce budworm, forest tent caterpillar, large aspen tortrix, aspen leafroller, mountain pine beetle, Douglas-fir beetle, spruce beetle, spruce gall midge, and Dutch elm disease infestations are discussed. Forecasts of spruce budworm, jack pine budworm, and forest tent caterpillar populations are reported for 1994. Other pests specifically affecting forests, young stands, aspen forests, and a forest nursery are also discussed. An update of surveys for acid rain symptoms in permanently established ARNEWS (Acid Rain National Early Warning System) plots is also reported. Other noteworthy insects, diseases, and tree damage agents are presented in tabular form.