Publications du Service canadien des forêts

Blackheaded budworm defoliation of western hemlock British Columbia. 1985. Wood, C.S.; Unger, L.S.; Andrews, R.J.; Erickson, R.D.; Humphreys, N.; Turnquist, R. Government of Canada, Canadian Forestry Service, Pacific Forest Research Centre, Victoria, BC. FIDS Pest Report October, 1985.