CU Department of Forestry and Natural Resources

Dr. Roy L. Hedden
Professor of Forestry, Forest Entomology
Department of Forestry & Natural Resources

Phone: (864) 656-4832
Fax: (864) 656-3304
Email: rhddn@clemson.edu

Personal Web Page: Under Construction

Academic Education Background

Degrees	Institutions	Major fields of study	Dates of degrees
Ph.D.	University of Washington	Forest Entomology	1976
M.S.	University of Washington	Forest Entomology	1972
B.S	University of Washington	Forest Resources	1971

Work Experience

Project Leader, Douglas-fir Beetle Population , Management Boyce Thompson Institute for Plant Research,1973-1975.
Entomologist III, Pest Control Section, Texas,Forest Service.1975-76.
Project Manager, Insect Control Research, Weyerhaeuser Company, 1976-79
Associate Professor & Professor (1984), Forest Entomology, Department of Forestry,Clemson University,Clemson,SC,1979-present

Research Areas

Changes to bark beetle populations as a consequence of fuel reduction treatments in Piedmont forest ecosystems, Phase II (USFS funded)
Rearing of Laricobius nigrinus for control of the hemlock wooly adelgid in the Chattooga River watershed (in cooperation with Dr. Joe Culin, Dept. of Entomology; funded by the National Forest Foundation and USFS)
Surveying and mapping HWA Infestations in South Carolina (South Carolina Commission of Forestry)
Assessing the damages of the southern pine beetle infestation to the viewsheds of South Carolina using modeling, GIS and 3D visualization. (Co-PI with Bo Song and Tom Williams)

Selected Publications

Hedden, R. 1998. Impact of Nantucket pine tip moth attack on loblolly pine--a south-wide summary. pp 569-572. In Waldrop T. A., ed. Proc. of the Ninth Bien. South. Silvic. Res. Conf. USDA For. Servo Gen. Tech. Rep. SRS-20, Asheville, NC
Jolley, L. W., R. L. Hedden. 2001. Tip dieback associated with Lasiodiplodia theobromae infection. Phytopathology 91: S45.
Hedden, R. L. 2001. Impact calculator for Nantucket tip moth in Loblolly pine plantations. Clemson University, Clemson, SC.
Hedden, R. 2002. Impact of pine tip moth attack on loblolly pine. pp 1-7. In Berisford, CW, Grosman DM, eds. Management of pine tip moths: Old problems - new research, Gen. Tech. Rep. SRS-51. Asheville, NC: USDA For. Serv, South. Res. Stat. 68 p.
Hedden R., S. Cameron, M. Cunningham, CD. Nelson. 2003. Tolerance to tip moth attack in loblolly pine families. Proc. South. For. Genetics Work. June 2001, Athens, GA
Boyle, M. F., Hedden, R. L., Waldrop, T. A.. 2004. Impact of prescribed fire and thinning on host resistance to the southern pine beetle: preliminary results of the National Fire and Fire Surrogate Study. General Technical Report - Southern Research Station, USDA Forest Service, 2004 (No. SRS-71) 60-64
Hedden, R. L. In review. The growth-differentiation balance hypothesis and the southern pine beetle on the Gulf Coastal Plain
Hedden, R. L. In review. Interaction between soil moisture, littleleaf disease and the southern pine beetle in the Southeastern USA
Faulkenberry, M., Culin, J., Hedden, R. In review. Hemlock Susceptibility To Hemlock Woolly Adelgid Attack: Site And Stand Characteristics In The Chattooga River Watershed

Courses Taught

Forest Entomology
Forest Policy and Administration (FOR 416/613)
Integrated Forest Pest Management (FOR 413/613)
Introduction to the Environment and Natural Resources (E N R 101)
Introduction to Pests (summer camp)
Taught portions in several short courses such as the U. S. Forest Service PASS Course

Noteworthy Achievements

Hedden, R. L., R. P. Belanger, H. R. Powers, Jr. and T. Mill.er. 1991: Relation of Nantucket pine tip moth attack and fusiform rust in loblolly pme families. South. J. Appl. For. 15:204~208.
Burkhart, H. E., D. E. Munsey, Jr., R. L. Amateis, and R. L. Hedden. 1992. Predicting impact of southern pine beetle infestations on rotation-age yield of loblolly pine stands. For. Ecol. Manage. 47:261~268.
Hedden, R. L., T. S. Fredericksen, and S. A. Williams. 1995. Modeling the effect of crown shedding and streamlining on the survival of loblolly pine exposed to acute wind. Can. J. For. Res. 25:704-712.
Fredericksen, T. S., R. L. Hedden, and S. A. Williams. 1995. Susceptibility of loblolly pine to bark beetle attack following simulated wind stress. For. Ecol. Manage. 76:95-107.