- Fox, J. W., D. L. Wood, C. S. Koehler, and S. T. O'Keefe. 1991. Engraver beetles (Scolytidae: Ips species) as vectors of the pitch canker fungus, Fusarium subglutinans. Canadian Entomologist 123:1355-1367.
- Fielding, N., T. O'Keefe, and C. King. 1991. Dispersal and host-finding capability of the predatory beetle Rhizophagus grandis Gyll (Col, Rhizophagidae). Journal of Applied Entomology 112:89-98.
- Fox, J., D. Wood, C. Koehler, and S. O'Keefe. 1991. Engraver beetles (Scolytidae: Ips species) as vectors of the pitch canker fungus, Fusarium subglutinans . The Canadian Entomologist 123:1355-1367.
- King, C., N. Fielding, and T. O'Keefe. 1991. Observations on the life cycle and behavior of the predatory beetle, Rhizophagus grandis Gyll. (Col., Rhizophagidae) in Britain. Journal of Applied Entomology 111: 286-296.
- O'Keefe, L. 1968. Dutch elm disease: chemical protection against elm bark beetles. Univerisity of Idaho, Agricultural Experiment Station (Moscow, ID). 1 sheet.