- Bell, J. C., L. E. Drake, and N. A. Overgaard. 1967. Southern and southeastern states. Pages 29-30 in United States Department of Agriculture, Forest Service, Forest Insect Conditions in the United States, 1967.
- Overgaard, N. A. 1968. Insects associated with the southern pine beetle in Texas, Louisiana, and Mississippi . Journal of Economic Entomology 61:1197-1201.
- Overgaard, N. A. 1970. Control of the southern pine beetle by woodpeckers in central Lousiana . Journal of Economic Entomology 63:1016-1017.
- Overgaard, N. A., W. E. Balmer, and D. R. Roberts. 1977. Evaluation of insect infestations on paraquat-treated loblolly and slash pines. Pages 12-17 in M. H. Esser (ed.), Lightwood Research Coordinating Council Proceedings. United States Department of Agriculture, Forest Service, Southeast Forest Experiment Station. 193 p.
- Overgaard, N. A., L. R. Barber, and G. D. Hertel. 1978. An evaluation of insect damage in southern federal seed orchards (1977) (Stuart-La., Erambert-Miss., Ouchita-Ark., Beech Creek-N.C, Francis Marion-S.C, and Ocala-Fla.). United States Department of Agriculture, Forest Service, Southern Region, State and Private Forestry, Report 78-2-12.
- Overgaard, N. A., and L. E. Drake. 1970. Evaluation of bark beetle infestations in storm-damaged timber on the DeSoto National Forest, Mississippi. United States Department of Agriculture, Forest Service, Southeastern Area, State and Private Forestry, Report No. 70-2-46. 4 p.
- Overgaard, N. A., and L. H. Nachod. 1971. Deodar weevil causes pine mortality in Lousiana . Journal of Economic Entomology 64:1329-1330.