- Coulson, R. N., W. S. Fargo, L. J. Edson, P. E. Pulley, and A. M. Bunting. 1979. Procedural guide for conducting field investigations on the population dynamics of the southern pine beetle. Texas Agricultural Experiment Station, Miscellaneous Publication 1427. 20 p.
- Coulson, R. N., W. S. Fargo, P. E. Pulley, J. L. Foltz, D. N. Pope, J. V. Richardson, and T. L. Payne. 1978. Evaluation of the re-emergence process of parent adult Dendroct onus frontalis (Coleoptera: Scolytidae) . Canadian Entomologist 110:475-486.
- Coulson, R. N., W. S. Fargo, P. E. Pulley, N. D. Pope, J. L. Foltz, and A. M. Bunting. 1979. Spatial and temporal patterns of emergence for within-tree populations of Dendroctonus frontalis (Coleoptera: Scolytidae) . Canadian Entomologist 111:273-287.
- Coulson, R. N., R. M. Feldman, W. S. Fargo, P. J. H. Sharpe, G. L. Curry, and P. E. Pulley. 1979. Evaluating suppression tactics of Dendroctonus frontalis in infestations. Pages 27-44 in J. E. Coster and J. L. Searcy (eds.), Evaluating control tactics for the southern pine beetle, a symposium. United States Department of Agriculture, Forest Service, Technical Bulletin 1613. 118 p.
- Coulson, R. N., D. N. Pope, J. A. Gagne, W. S. Fargo, P. E. Pulley, L. J. Edson, and T. L. Wagner. 1980. Impact of foraging by Monochamus titillator (Col, Cerambycidae) on within-tree populations of D frontalis (Col, Scolytidae) . Entomophaga 25:155-170.
- Pulley, P. E., D. N. Pope, W. S. Fargo, L. J. Edson, and R. N. Coulson. 1980. Continuous population estimates for Dendroctonus frontalis occurring in infestations . Researches on Population Ecology 22:117-135.
- Coulson, R. N., P. E. Pulley, D. N. Pope, W. S. Fargo, J. A. Gagne, and C. L. Kelly. 1980. Estimation of survival and allocation of adult southern pine beetles between trees during the development of and infestation. Pages 194-212 in A. A. Berryman and L. Safranyik, Proceedings of the Second IUFRO Conference on dispersal of forest pests: evaluation, theory, and management implications.
- Fargo, W. S. 1977. Temporal and spatial patterns of colonization, reemergence, and emergence of the southern pine beetle, Dendroctonus frontalis Zimm. (Coleoptera: Scolytidae). Unpublished thesis, Texas A and M University, College Station. 73 p.
- Fargo, W. S. 1981. Factors influencing growth of multiple-tree infestations by the southern pine beetle, Dendroctonus frontalis Zimmermann. Unpublished dissertation, Texas A and M University, College Station. 77 p.
- Fargo, W. S., R. N. Coulson, J. A. Gagne, and J. L. Foltz. 1979. Correlation of southern pine beetle attack density, oviposition, and generation survival with host tree characteristics and preceding beetle life stages within the host . Environmental Entomology 8:624-628.
- Fargo, W. S., R. N. Coulson, P. E. Pulley, D. N. Pope, and C. L. Kelley. 1978. Spatial and temporal patterns of within-tree colonization by Dendroctonus frontalis (Coleoptera: Scolytidae) . Canadian Entomologist 110:1213-1232.
- Fargo, W. S., T. L. Wagner, R. N. Coulson, J. D. Cover, T. McAudle, and T. D. Schowalter. 1982. Probability functions for components on the Dendroctonus frontalis -host tree population system and their potential use with population models . Researches on Population Ecology 24:123-131.
- Gagne, J. A., T. L. Wagner, P. J. H. Sharpe, R. N. Coulson, and W. S. Fargo. 1982. Reemergence of Dendroctonus frontalis (Coleoptera: Scolytidae) at constant temperatures . Environmental Entomology 11:1216-1222.
- McClelland, W. T., F. P. Hain, C. J. DeMars, W. S. Fargo, R. N. Coulson, and T. E. Nebeker. 1978. Sampling bark beetle emergence: a review of methodologies, a proposal for standardization, and a new trap design . Entomological Society of America, Bulletin 24:137-140.
- Pope, D., N., R. N. Coulson, W. S. Fargo, J. A. Gagne, and C. W. Kelly. 1980. The allocation process and between-tree survival probabilities in Dendroctonus frontalis infestations . Research in Population Ecology 22:197-210.
- Schowalter, T. D., R. N. Coulson, R. H. Turnbow, and W. S. Fargo. 1982. Accuracy and precision of procedures for estimating populations of the southern pine beetle (Coleoptera: Scolytidae) by using host tree correlates . Journal of Economic Entomology 75:1009-1016.
- Schowalter, T. D., D. N. Pope, R. N. Coulson, and W. S. Fargo. 1981. Patterns of southern pine beetle (Dendroctonus frontalis Zimm) infestation enlargement . Forest Science 27:837-849.
- Wagner, T. L., W. S. Fargo, L. L. Keeley, R. N. Coulson, and J. D. Cover. 1982. Effects of sequential attack on gallery construction, oviposition, and re-emergence by Dendroctonus frontalis (Coleoptera: Scolytidae) . Canadian Entomologist 114:491-502.
- Fargo, W. S., T. L. Wagner, and R. N. Coulson. 1985. Factors influencing the growth of multiple-tree infestations of Dendroctonus frontalis . Researches on Population Ecology 27:25-38.
- Wagner, T. L., W. S. Fargo, R. O. Flamm, R. N. Coulson, and P. E. Pulley. 1987. Development and mortality of Ips calligraphus (Coleoptera: Scolytidae) at constant temperatures . Environmental Entomology 16:484-496.
- Wagner, T. L., R. O. Flamm, H. I. Wu, W. S. Fargo, and R. N. Coulson. 1987. Temperaturedependent model of life cycle development of Ips calligraphus (Coleoptera: Scolytidae) . Environmental Entomology 16:497-502.