Witcosky, J. J. 1989. Root beetles, stand disturbance, and management of black-stain root disease in plantations of Douglas-fir. Pages 58-70 in R. I. Alfaro and S. G. Glover, Insects affecting reforestation: biology and damage. Government of Canada, Canadian Forestry Service, Pacific and Yukon Region, Victoria, British Columbia.
Witcosky 1989
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