- Barras, S. J. 1967. Thoracic mycangium of Dendroctonus frontalis (Coleoptera: Scolytidae) is synonymous with a secondary female character . Entomological Society of America, Annals 60:486-487.
- Barras, S. J. 1969. Penicillium implicatum antagonistic to Ceratocystis minor and C. ips. Phytopathology 59:520.
- Barras, S. J. 1970. Antagonism between Dendroctonus frontalis and the fungus Ceratocystis minor . Entomological Society of America, Annals 63:1187-1190.
- Barras, S. J. 1972. Improved White's solution for surface sterilization of pupae of Dendroctonus frontalis . Journal of Economic Entomology 65:1504.
- Barras, S. J. 1973. Reduction of progeny and development in the southern pine beetle following removal of symbiotic fungi . Canadian Entomologist 105:1295-1299.
- Barras, S. J. 1975. Release of fungi from mycangia of southern pine beetles observed under a scanning electron microscope . Zeitschrift fur Angewandte Entomologie 79:173-176.
- Barras, S. J. 1979. Forest ecosystem approach to tree-pest interaction. Proceedings of the annual Western Forest Insect Work Conference, Boise, Idaho, 7-9 March 1979.
- Barras, S. J., and J. D. Hodges. 1969. Carbohydrates of inner bark of Pinus taeda as affected by Dendroctonus frontalis and associated microorganisms . Canadian Entomologist 101:489-493.
- Barras, S. J., and J. D. Hodges. 1974. Weight, moisture, and lipid changes during life cycle of the southern pine beetle. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station (New Orleans), Research Note SO-178. 5 p.
- Barras, S. J., and J. E. Marler. 1974. Identification of bacterial flora in the digestive tract of the southern pine beetle Dendroctonus frontalis (Zimm.). United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Final Report FS-SO-2203-1.22. 10 p.
- Barras, S. J., and T. J. Perry. 1971a. Gland cells and fungi associated with prothoracic mycangium of Dendroctonus adjunctus (Coleoptera: Scolytidae) . Entomological Society of America, Annals 64:123-126.
- Barras, S. J., and T. J. Perry. 1971b. Leptographiumterebrantis sp. nov. associated with Dendroctonus terebrans in loblolly pine. Mycopathologia et Mycologia Applicata, Den Haag 43(1):1-10.
- Barras, S. J., and T. J. Perry. 1972. Fungal symbionts in the prothoracic mycangium of Dendroctonus frontalis (Coleopt: Scolytidae) . Zeitschrift fur Angewandte Entomologie 71:95-104.
- Barras, S. J., and T. J. Perry. 1975. Interrelationships among microorganisms, bark or ambrosia beetles, and woody host tissue, an annotated bibliography, 1965-1974. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, General Technical Report SO-10. 34 p.
- Barras, S. J., and J. J. Taylor. 1973. Varietal Ceratocystis minor identified from mycangium of Dendroctonus frontalis . Mycopathologia et Mycologia Applicata 50:293-305.
- Brand, J. M., and S. J. Barras. 1977. The major volatile constituents of a basidiomycete associated with the southern pine beetle . Lloydia 40:398-400.
- Brand, J. M., J. W. Bracke, L. N. Britton, A. J. Markovetz, and S. J. Barras. 1976. Bark beetle pheromones: production of verbenone by a mycangial fungus of Dendroctonus frontalis . Journal of Chemical Ecology 2:195-199.
- Brand, J. M., J. Schultz, S. J. Barras, L. J. Edson, T. L. Payne, and R. L. Hedden. 1977. Bark-beetle pheromones, enhancement of Dendroctonus frontalis (Coleoptera: Scolytidae) aggregation pheromone by yeast metabolites in laboratory bioassays . Journal of Chemical Ecology 3:657-666.
- Happ, G. M., C. M. Happ, and S. J. Barras. 1971. Fine structure of the prothoracic mycangium, a chamber for the culture of symbiotic fungi, in the southern pine beetle, Dendroctonus frontalis . Tissue and Cell 3:295-308.
- Happ, G. M., C. M. Happ, and S. J. Barras. 1975. Bark beetle-fungal symbiosis. III. Ultrastructure of conidiogenesis in a Sporothrix ectosymbiont of the southern pine beetle. Canadian Journal of Botany 53(23):2702-2711.
- Happ, G. M., C. M. Happ, and S. J. Barras. 1976. Bark beetle-fungal symbiosis. II. Fine structure of a basidiomycetous ectosymbiont of the southern pine beetle. Canadian Journal of Botany 54(10):1049-1062.
- Hedden, R. L., S. J. Barras, and J. E. Coster. 1981. Hazard-rating systems in forest insect pest management. United States Department of Agriculture, Forest Service, General Technical Report WO-27. 169 p.
- Hemingway, R. W., G. W. McGraw, and S. J. Barras. 1977. Polyphenols in Ceratocystis minor infected Pinus taeda: fungal metabolites, phloem and xylem phenols . Agriculture and Food Chemistry, Journal 25:717-722.
- Hodges, J. D., and S. J. Barras. 1974. Fatty-acid composition of Dendroctonus frontalis at various developmental stages . Entomological Society of America, Annals 67:51-54.
- Hodges, J. D., S. J. Barras, and J. K. Mauldin. 1968a. Amino acids in inner bark of loblolly pine, as affected by the southern pine beetle and associated microorganisms . Canadian Journal of Botany 46:1467-1472.
- Hodges, J. D., S. J. Barras, and J. K. Mauldin. 1968b. Free and protein-bound amino acids in inner bark of loblolly pine . Forest Science 14:330-333.
- Marler, J. E., and S. J. Barras. 1978a. A simple method for the production of microbe-free southern pine beetles . Georgia Entomological Society, Journal 13:121-124.
- Marler, J. E., and S. J. Barras. 1978b. Identification of bacterial flora in galleries of the southern pine beetle, Dendroctonus frontalis Zimm. United States Department of Agriculture, Forest Service, Final Report FS-SO-2203-1.29.