Authors: Groot, Peter de; Helson, Blair V.; Zylstra, Bert F.; McFarlane, John W.; Comba, Dave R.
Source: Northern Journal of Applied Forestry, Volume 12, Number 1, 1 March 1995, pp. 19-22(4)
Publisher: Society of American Foresters
Document Type: Journal Article
Affiliations: Natural Resources Canada, Canadian Forest Service, Forest Pest Management Institute, Box 490, Sault Ste. Marie, Ontario, Canada, P6A 5M7
Publication date: March 1, 1995