- Deane, B. C., and F. O. Morrison. 1957a. Preliminary observations on the clover root borer (Hylastinus obscurus Marsham) (Coleoptera: Scolytidae) in Quebec . Quebec Society for the Protection of Plants, Report 38:34-35.
- Deane, B. C., and F. O. Morrison. 1957b. The distribution and importance of the clover root borer (Hylastinus obscurus (Marsh) (Coleoptera: Scolytidae) in Quebec . Canadian Journal of Plant Science 37:26-33.
- Gustafson, J., and F. O. Morrison. 1958. Above ground activity of the clover root borer . Entomological Society of Quebec, Annals 3:11-20.
- Gustafson, J., and F. O. Morrison. 1960a. Biology of the clover root borer, Hylastinus obscurus (Marsham) (Coleoptera: Scolytidae) . Entomological Society of Quebec, Annals 5:93-100.
- Gustafson, J., and F. O. Morrison. 1960b. Injury caused by the clover root borer, Hylastinus obscurus (Marsham) (Coleoptera: Scolytidae) . Entomological Society of Quebec, Annals 4:17-24.
- Morrison, F. O., and J. Gustafson. 1960. Plant to plant migration by clover root borer, Hylastinus obscurus (Marsham) (Coleoptera: Scolytidae) adults . Entomological Society of Quebec, Annals 4:70-71.
- Morrison, W. 1966. Beetlebomb: will it explode again in the Black Hills? Time and the extent of forest management will tell . Our Public Lands 16:18-19.
- Hunt, R. S., and D. J. Morrison. 1986. Black-stain root disease on lodgepole pine in British Columbia . Canadian Journal of Forest Research 16:996-999.
- Morrison, D. J., and R. S. Hunt. 1985. Blackstain root diseases on lodgepole pine in British Columbia, Canada . Phytopathology 75:1295.