- Cole, W. E., D. B. Cahill, and G. D. Lessard. 1983. Harvesting strategies for management of mountain pine beetle infestations in lodgepole pine: Preliminary evaluation East Long Creek Demonstration Area, Shoshone National Forest, Wyoming. United States Department of Agriculture, Forest Service, Intermountain Forest and Range Experiment Station, Research Note INT-333. 11 p.
- Hinds, T. E., L. R. Fuller, E. D. Lessard, and W. D. Johnson. 1984. Mountain pine beetle infestation and Armillaria root disease of ponderosa pine in the Black Hills of South Dakota. United States Department of Agriculture, Forest Service, Timber, Forest Pest, and Cooperative Forestry Management, Technical Report R2-30. 7 p.
- Lessard, E. D. 1976. The occurrence and control of the spruce beetle in the Southwestern Region. United States Department of Agriculture, Forest Service, Southwestern Region, Forest Pest Management Report R3-76-26. 13 p.
- Lessard, E. D. 1978. Forest insect and disease conditions in the Southwest 1977. United States Department of Agriculture, Forest Service, Southwestern Region, Forest Insect and Disease Management, Report R3-78-8. 17 p.
- Lessard, E. D. 1979a. Mountain pine beetle, Bear Lodge Mountains, Black Hills National Forest. United States Department of Agriculture, Forest Service, Rocky Mountain Region, State and Private Forestry, Biological Evaluation R2-79-12. 7 p.
- Lessard, E. D. 1979b. Mountain pine beetle evaluation, South Dakota State Cooperative Area, 1979, Progress Report 1. United States Department of Agriculture, Forest Service, Rocky Mountain Region, State and Private Forestry, Biological Evaluation R2-79-15. 9 p.
- Lessard, E. D. 1979c. Mountain pine beetle, Project 632, Progress Report, Black Hills National Forest. United States Department of Agriculture, Forest Service, Rocky Mountain Region, State and Private Forestry, Biological Evaluation R2-79-11. 9 p.
- Lessard, E. D. 1981a. Factors affecting ponderosa pine susceptibility to mountain pine beetle in the Black Hills, 1981. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Technical Report R2-26. 16 p.
- Lessard, E. D. 1981b. Mountain pine beetle evaluation, state, county, and private lands, Casper Mountain, Wyoming, 1981. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Biological Evaluation, Report R2-82-1. 12 p.
- Lessard, E. D. 1982a. Mountain pine beetle evaluation, ponderosa pine stand risk rating using ground and aerial photographic surveys, 198]. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Interim Report. 16 p.
- Lessard, E. D. 1982b. Spruce beetle, Little Horn Area, Bighorn National Forest, 1982. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Timber, Forest Pest, and Cooperative Forestry Management, Biological Evaluation R2-82-5. 5 p.
- Lessard, E. D. 1983. Mountain pine beetle evaluation. Factors affecting ponderosa pine stand susceptibility to mountain pine beetle in the Black Hills, 1981. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Timber, Forest Pest and Cooperative Forestry Management, Technical Report R2-26. 16 p.
- Lessard, E. D. 1984a. High Country Integrated Pest Management Project post-suppression evaluation, Grand County, Colorado, 1984. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Report R2-84-9. 26 p.
- Lessard, E. D. 1984b. High Country Integrated Pest Management Project post-suppression evaluation, 1985. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Report R2-85-4. 17 p.
- Lessard, E. D. 1984c. Mountain pine beetle in the Black Hills of South Dakota and Wyoming, 1984. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Biological Evaluation, Report R2-84-7.
- Lessard, E. D., and L. R. Fuller. 1982. Forest Pest Management, 1981. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Timber, Forest Pest and Cooperative Forestry Management, Annual Report, Lakewood, Colorado. 31 p.
- Lessard, E. D., and D. W. Johnson. 1981. Mountain pine beetle, dwarf mistletoe, comandra rust in lodgepole pine, Roaring Fork and North Fork drainages, Little Snake River, Medicine Bow National Forest, 1981. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Biological Evaluation, Report R2-81-4. 20 p.
- Lessard, E. D., D. W. Johnson, T. E. Hinds, and W. H. Hoskins. 1985. Association of Armillaria root disease with mountain pine beetle infestations on the Black Hills National Forest, South Dakota. United States Department of Agriculture, Forest Service, Methods and Application Group, Report 85-4. 6 p.
- Lessard, E. D., and J. W. Walters. 1978. Southwestern Region (R-3). Pages 23-27 in P. W. Orr and H. D. Brown, Forest insect and disease conditions in the United States, 1977. United States Department of Agriculture, Forest Service. 88 p.
- O'Neil, C. G., and E. D. Lessard. 1983. Mountain pine beetle evaluation (update) in lodgepole pine, Roaring Fork and North Fork Drainages, Little Snake River, Medicine Bow National Forest, Wyoming 1983. United States Department of Agriculture, Forest Service, Timber, Forest Pests, and Cooperative Forestry Management, Rocky Mountain Region, Biological Evaluation R2-83-5. 4 p.
- O'Neil, C. G., and E. D. Lessard. 1984. Mountain pine beetle in ponderosa pine, Laramie Peak, Medicine Bow National Forest, Wyoming. United States Department of Agriculture, Forest Service, Timber, Forest Pests, and Cooperative Forestry Management, Rocky Mountain Region, Biological Evaluation R2-84-5. 12 p.
- Walters, J. W., and G. Lessard. 1978. Southwestern Region (R-3). Pages 9-13 in H. D. Brown and P. W. Orr, Forest insect and disease conditions in the United States, 1976. United States Department of Agriculture, Forest Service. vi + 40 p.
- Amman, G. D., E. D. Lessard, L. A. Rasmussen, and C. G. O'Neil. 1988. Lodgepole pine vigor, regeneration, and infestation by mountain pine beetle following partial cutting on the Shoshone National Forest, Wyoming. United States Department of Agriculture, Forest Service, Intermountain Research Station, Ogden, Utah, Research Paper INT-396. 8 p.
- Lessard, E. D. 1985a. High country integrated pest management project: post suppression evaluation 1985. United States Department of Agriculture, Forest Service, Rocky Mountain Region, Lakewood, Colorado, Timber, Forest Pest and Cooperative Forestry Management, Biological Evaluation R2-85-4. 17 p. + appendix.
- Lessard, E. D. 1985b. Root diseases and bark beetles. Page 16 in Thirty-sixth annual Western Forest Insect Work Conference, Proceedings, 4-7 March 1985, Boulder, Colorado. Canada Department of Environment, Canadian Forestry Service, Northern Forest Research Centre, Edmonton, Alberta. 54 p.
- Lessard, E. D. 1989. Mountain pine beetle population manipulation strategies: past suppression practices. Pages 81-82 in G. D. Amman, Management of lodgepole pine to minimize losses to the mountain pine beetle: symposium proceedings. United States Department of Agriculture, Forest Service, Intermountain Research Station, Ogden, Utah, General Technical Report INT-262. 119 p.
- Lessard, E. D., M. Hansen, and M. L. Eilers. 1986. Annotated bibliography: mountain pine beetle, Dendroctonus ponderosae Hopkins (Coleoptera: Scolytidae). United States Department of Agriculture, Forest Service, Rocky Mountain Region, Lakewood, Colorado, Timber, Forest Pest and Cooperative Forestry Management, Technical Report R2-35. 158 p.
- Lessard, E. D., D. W. Johnson, T. E. Hinds, and W. H. Hopkins. 1985. Association of Amillaria root disease with mountain pine beetle infestations on the Black Hills National Forest, South Dakota. United States Department of Agriculture, Forest Service, Forest Pest Management, Methods Application Group, Fort Collins, Colorado, Report 85-4. 6 p. + appendix.
- Lessard, E., and J. Schmid. 1990. Emergence, attack densities, and host relationships for the Douglas-fir beetle (Dendroctonus pseudotsugae Hopkins) in northern Colorado . Great Basin Naturalist 50:333-338.