- Coster, J. E., T. L. Payne, P. L. Lorio, and J. D. Hodges. 1973. Southern pine beetle control techniques and strategies. Southern pine beetle—a management challenge. Entomological Society of America, National Meeting, Dallas, Texas. 17 p.
- Hodges, J. D., and P. L. Lorio. 1968a. Measurement of oleoresin exudation pressure in loblolly pine . Forest Science 14:75-76.
- Hodges, J. D., and P. L. Lorio. 1968b. Oleoresin exudation pressure and relative water content of inner bark as indicators of moisture stress in loblolly pines . Forest Science 14:392-398.
- Hodges, J. D., and P. L. Lorio. 1969. Carbohydrate and nitrogen fractions of the inner bark of loblolly pines under moisture stress . Canadian Journal of Botany 47:1651-1657.
- Hodges, J. D., and P. L. Lorio. 1971. Comparison of field techniques for measuring moisture stress in large loblolly pines . Forest Science 17:220-223.
- Hodges, J. D., and P. L. Lorio. 1973. Comparison of oleoresin composition in declining and healthy loblolly pines. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Note SO-158. 4 p.
- Hodges, J. D., and P. L. Lorio. 1975. Moisture stress and composition of xylem oleoresin in loblolly pine . Forest Science 21:283-290.
- Lorio, P. L. 1966a. Phytophthora cinnamomi and Pythium species associated with loblolly pine decline in Louisiana . Plant Disease Reporter 50:596-597.
- Lorio, P. L. 1966b. Problem analysis, site conditions and southern pine beetle attacks. (Rev.). United States Department of Agriculture, Forest Service, Southern Forest Experiment Station SO-2203-6.0. 4 p.
- Lorio, P. L. 1968a. Oleoresin exudation pressure and relative water content of inner bark as indicators of moisture stress in loblolly pines . Forest Science 14:392-398.
- Lorio, P. L. 1968b. Soil and stand conditions related to southern pine beetle activity in Hardin County, Texas . Journal of Economic Entomology 61:565-566.
- Lorio, P. L. 1973. Declining pines associated with bark beetle activity in Allen Parish, Louisiana. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Note SO-163. 3 p.
- Lorio, P. L. 1976. Stop 2, Sam Houston National Forest: Sitestand relationships and the southern pine beetle. Pages 25-26 in Forest/soil/geology relationships at selected southeast Texas forest sites: a field trip guidebook. TAMU, Forest Science Research Note 3.
- Lorio, P. L. 1978a. Developing stand risk classes for the southern pine beetle. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Paper SO-144. 9 p.
- Lorio, P. L. 1978b. Researching the southern pine beetle . Ames Forester 65:15-16.
- Lorio, P. L. 1980a. Loblolly pine stocking levels affect potential for southern pine beetle infestation . Southern Journal of Applied Forestry 4:162-165.
- Lorio, P. L. 1980b. Rating stands for susceptibility to SPB (southern pine beetle). Pages 153-163 in R. C. Thatcher, J. L. Searcy, J. E. Coster and G. D. Hertel (eds.), The southern pine beetle. United States Department of Agriculture, Forest Service, Technical Bulletin 1631. 266 p.
- Lorio, P. L. 1984. Should small infestations of southern pine beetle receive control priority? . Southern Journal of Applied Forestry 8:201-205.
- Lorio, P. L., and W. H. Bennett. 1974. Recurring southern pine beetle infestations near Oakdale, Louisiana. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Paper SO-95. 6 p.
- Lorio, P. L., and J. D. Hodges. 1968a. Microsite effects on oleoresin exudation pressure of large loblolly pines . Ecology 49:1207-1210.
- Lorio, P. L., and J. D. Hodges. 1968b. Oleoresin exudation pressure and relative water content of inner bark as indicators of moisture stress in loblolly pines . Forest Science 14:392-398.
- Lorio, P. L., and J. D. Hodges. 1971. Microrelief, soil water regime and loblolly pine growth on a wet, mounded site . Soil Science Society of America, Proceedings 35:795-800.
- Lorio, P. L., and J. D. Hodges. 1974. Host and site factors in southern pine beetle infestations. Pages 32-34 in T. L. Payne, R. N. Coulson, and R. C. Thatcher (eds.), Southern pine beetle symposium. Texas Agricultural Experiment Station and United States Department of Agriculture, Forest Service, College Station, Texas. 57 p.
- Lorio, P. L., and J. D. Hodges. 1977. Tree water status affects induced southern pine beetle attack and brood production. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, Research Paper SO-135. 7 p.
- Lorio, P. L., and J. D. Hodges. 1985. Theories of interactions among bark beetles, associated microorganisms, and host trees. Pages 485-492 in Third biennial Southern Sylvicultural Research Conference, Proceedings. Atlanta, Georgia, 7-8 November 1984. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station.
- Lorio, P. L., V. K. Howe, and C. N. Martin. 1972. Loblolly pine rooting varies with microrelief on wet sites . Ecology 53:1134-1140.
- Lorio, P. L., G. N. Mason, and G. L. Autry. 1982. Stand risk rating for the southern pine beetle: integrating pest management with forest management . Journal of Forestry 80:212-213.
- Lorio, P. L., and R. A. Sommers. 1980. Gulf Coastal Plain (Louisiana). Pages 23-39 in J. E. Coster and J. L. Searcy (eds.), Site, stand, and host characteristics of southern pine beetle infestations. United States Department of Agriculture, Forest Service, Technical Bulletin 1612. 115 p.
- Lorio, P. L., and R. A. Sommers. 1981. Use of available resource data to rate stands for southern pine beetle risk. Pages 75-78 in R. L. Hedden, S. J. Barras, and J. E. Coster (eds.), Hazard-rating systems in forest insect pest management: symposium proceedings. United States Department of Agriculture, Forest Service, General Technical Report WO-27. 169 p.
- Lorio, P. L., and D. O. Yandle. 1978. Distribution of lightning-induced southern pine beetle infestations . Southern Lumberman 235:12-13.
- Lorio, P. L., and S. J. Zarnoch. 1984. Calculating tree bole surface area for estimating populations of the southern pine beetle (Coleoptera: Scolytidae) . Environmental Entomology 13:1069-1073.
- Mason, G. N., P. L. Lorio, R. P. Belanger, and W. L. Nettleton. 1985. Rating the susceptibility of stands to southern pine beetle attack. United States Department of Agriculture, Forest Service, Cooperative State Research Service, Agricultural Handbook 645. 31 p.
- Zarnoch, S. J., P. L. Lorio, and R. a. Sommers. 1984. A logistic model for southern pine beetle stand risk rating in central Louisiana . Georgia Entomological Society, Journal 19:168-175.
- Hedden, R. L., and P. L. Lorio. 1985. Rating stand susceptibility to southern pine beetle attack on national forests in the Gulf Coastal Plain. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, New Orleans, Louisiana, Research Paper SO-221. 5 p.
- Kelley, W., R. P. Belanger, M. D. Conner, T. R. Dell, J. E. d. Steiguer, R. Kiester, R. N. Kitchens, P. L. Lorio, and K. M. Swain. 1986a. Long-term strategies and research needs for managing southern forests to reduce southern pine beetle impacts. United States Department of Agriculture, Forest Service, Atlanta, Georgia. 37 p.
- Kelley, W., R. P. Belanger, M. D. Conner, T. R. Dell, J. E. d. Steiguer, R. Kiester, R. N. Kitchens, P. L. Lorio, and K. M. Swain. 1986b. Short-term strategies for managing southern forests to reduce southern pine beetle impacts. United States Department of Agriculture, Forest Service, Atlanta, Georgia. 32 p.
- Lorio, P. L. 1986. Growth-differentiation balance: a basis for understanding southern pine beetletree interactions . Annales Entomologici Fennici 14:259-273.
- Lorio, P. L. 1988. Growth differentiation-balance relationships in pines affect their resistance to bark beetles (Coleoptera: Scolytidae). Pages 73-92 in W J. Mattson, J. Levieux, and C. Bernard-Dagan, Mechanisms of woody plant defenses against insects: search for pattern. Springer, New York. xiv + 416 p.
- Lorio, P. L., and S. J. Branham. 1988. Where'd the beetle go? . Forests and People 3618-20, 36-37.
- Lorio, P. L., and J. D. Hodges. 1985. Theories of interactions among bark beetles, associated microorganisms, and host trees. Pages 485-492 in United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, New Orleans, Louisiana, General Technical Report SO-54.
- Lorio, P. L., and R. A. Sommers. 1985. Potential use of soil maps to estimate southern pine beetle risk. Pages 239-245 in S. J. Branham and R. C. Thatcher, Integrated pest management research symposium: the proceedings. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, New Orleans, Louisiana, General Technical Report SO-56. 383 p.
- Lorio, P. L., and R. A. Sommers. 1986. Evidence of competition for photosynthates between growth processes and oleoresin synthesis in Pinus taeda L. Pages 301-306 in R. J. Luxmore, J. J. Landsberg, and M. R. Kaufmann, Coupling of carbon, water and nutrient interactions in woody plant soil systems. Tree Physiology 2(1-3).
- Mason, G. N., P. L. Lorio, R. P. Belanger, and W. L. Nettleton. 1985. Rating the susceptibility of stands to southern pine beetle attack. United States Department of Agriculture, Forest Service, Cooperative State Research Service, Washington, D.C., Agriculture Handbook 645. 31 p.
- Moser, J. C., R. A. Sommers, P. L. Lorio, J. R. Bridges, and J. J. Witcosky. 1987. Southern pine beetles attack felled green timber. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station, New Orleans, Louisiana, Research Note SO-342. 7 p.
- Belanger, R., R. Hedden, and P. Lorio. 1993. Management strategies to reduce losses from the southern pine beetle . Southern Journal of Applied Forestry 17:150-153.
- Blanche, C., P. Lorio, R. Sommers, J. Hodges, and T. Nebeker. 1992. Seasonal cambial growth and development of loblolly pine: xylem formation, inner bark chemistry, resin ducts, and resin flow . Forest Ecology and Management 49:151-165.
- Dunn, J., and P. Lorio. 1992a. Ecophysiological parameters associated with loblolly pine resistance against the southern pine beetle. Page 165 In Douglas C. Allen and L.P. Abrahamson (eds.), Proceedings: North American Forest Insect Work Conference, Denver, Colorado, March 25-28, 1991. United States Department of Agriculture, Forest Service, Pacific Northwest Research Station (Portland, OR), General Technical Report PNW-GTR-294.
- Dunn, J., and P. Lorio. 1992b. Effects of bark girdling on carbohydrate supply and resistance of loblolly pine to southern pine beetle (Dendroctonus frontalis Zimm) attack . Forest Ecology and Management 50:317-330.
- Dunn, J., and P. Lorio. 1993. Modified water regimes affect photosynthesis, xylem water potential, cambial growth, and resistance of juvenile Pinus taeda L. to Dendroctonus frontalis (Coleoptera: Scolytidae). Environmental Entomology 22: 948-957.
- Lorio, J., and P.L. 1993. Environmental stress and whole-tree physiology. Pages 81-101 In T.D. Schowalter and G.M. Filip (eds.), Beetlepathogen interactions in conifer forests. Academic Press: London.
- Lorio, J., and P.L. 1994a. The relationship of oleoresin exudation pressure (or lack thereof) to flow from wounds . Journal of Sustainable Forestry 1:81-93.
- Lorio, J., and P.L. 1994b. Southern pine beetle risk rating. Pages 162-171 In J.B. Baker (comp), Proceedings of the symposium on ecosystem management research in the Ouachita Mountains: pretreatment conditions and preliminary findings, Hot Springs, Arkansas, October 26-27, 1993. United States Department of Agriculture, Forest Service, Southern Forest Experiment Station (New Orleans, LA), General Technical Report SO-112.
- Lorio, J., P.L., M. Ayres, and J. Dunn. 1993. Moderate water deficit in loblolly pine Pinus taeda L. reduces growth but enhances resistance to the southern pine beetle. Bulletin of the Ecological Society of America 74 (2 suppl.):336-337.
- Lorio, J., P.L., R. Sommers, C. Blanche, J. Hodges, and T. Nebeker. 1990. Modeling pine resistance to bark beetles based on growth and differentiation balance principles. Pages 402-409 In Robert K. Dixon et al. (eds.), Process modeling of forest growth responses to environmental stress. Timber Press: Portland, OR.
- Reeve, J., M. Ayers, and P. Lorio. 1994. Population dynamics of bark beetles . Bulletin of the Ecological Society of America 75:189.
- Turchin, P., P. Lorio, A. Taylor, and R. Billings. 1991. Why do populations of southern pine beetles (Coleoptera: Scolytidae) fluctuate? . Environmental Entomology 20:401-409.
- Lorio, P. 1996. Approaches to studying environmental effects on resistance of Pinus taeda L. to Dendroctonus frontalis Zimmerman. Pages 200-210 In W.J. Mattson, P. Niemelaand, and M. Rousi (eds.), Dynamics of forestry herbivory: quest for pattern and principle. United States Department of Agriculture, Forest Service, North Central Forest Experiment Station (St. Paul, MN), General Technical Report NC-183.
- Lorio, P., F. Stephen, and T. Paine. 1995. Environment and ontogeny modify loblolly pine response to induced acute water deficits and bark beetle attack . Forest Ecology and Management 73:97-110.
- McNulty, S., P. Lorio, M. Ayres, and J. Reeve. 1998. Predictions of southern pine beetle populations using a forest ecosystem model. Pages 617-634 In R.A. Mickler and S. Fox (eds.), The productivity and sustainability of southern forest ecosystems in a changing environment. Ecological Studies, 128. Springer-Verlag New York, Inc: New York, New York. 892 pp.
- Reeve, J., M. Ayres, and P. Lorio. 1995. Host suitability, predation and bark beetle population dynamics. Pages 339-357 In N. Cappuccino and P.W. Price [eds.], Population Dynamics: New Approaches and Synthesis. Academic Press, San Diego, CA.
- Ruel, J., P. Ayres, and P. Lorio. 1998. Loblolly pine responds to mechanical wounding with increased resin flow . Canadian Journal of Forest Research 28:596-602.
- Wilkens, R., M. Ayres, P. Lorio, and J. Hodges. 1998. Environmental effects on pine tree carbon budgets and resistance to bark beetles. Pages 519-616 In R.A. Mickler and S. Fox (eds.), The productivity and sustainability of southern forest ecosystems in a changing environment. Ecological Studies, 128. Springer-Verlag New York, Inc: New York, New York. 892 pp.