Stephen Fraedrich, PhD

Treesearch Publications

• Albert (Bud) E. Mayfield, Stephen Fraedrich, Paul Merten. 2025. Laurel Wilt
• Albert E. II Mayfield, Rabiu Olatinwo, Jaesoon Hwang, Bryan Mudder, Alexandra Blevins, Stephen Fraedrich. 2023. Laurel wilt spread, vector flight behavior, and impacts in sassafras beyond the Gulf-Atlantic Coastal Plain
• Michelle Cram, Mee-Sook Kim, Stephen Fraedrich, Rabiu Olatinwo, Ned B. Klopfenstein. 2022. First Report of Armillaria root disease of Celtis laevigata caused by A. gallica in South Carolina, USA
• Albert Mayfield, Rabiu Olatinwo, Jaesoon Hwang, Bryan Mudder, Alexandra Blevins, Stephen Fraedrich. 2022. Spread, vector flight behavior, and impact of Laurel Wilt in Sassafras beyond the Gulf-Atlantic coastal plain.
• Jeffrey Hamilton, Stephen Fraedrich, Campbell Nairn, Albert (Bud) E. Mayfield, Caterina Villari. 2021. A field-portable diagnostic approach confirms Laurel Wilt Disease diagnosis in minutes instead of days
• Rabiu Olatinwo, Stephen Fraedrich, Albert (Bud) E. Mayfield. 2021. Laurel wilt: Current and potential impacts and possibilities for prevention and management
• Jane E. Stewart, John T. Dobbs, Stephen Fraedrich, Gregory J. Reynolds, Kas Dumroese, Ned B. Klopfenstein, Mee-Sook Kim. 2020. Molecular characterization of Fusarium species associated with damping-off of conifer seedlings in tree nurseries
• Jeffrey L. Hamilton, J. Noah Workman, Campbell J. Nairn, Stephen Fraedrich, Caterina Villari. 2020. Rapid detection of Raffaelea lauricola directly from host plant and beetle vector tissues using loop-mediated isothermal amplification
• Rabiu Olatinwo, Stephen Fraedrich. 2019. An Acaromyces species associated withb bark beetles from southern pine has inhibitory properties against Raffaelea lauricola , the casual pathogen of laurel wilt disease of redbay
• Emilee M. Poole, Michael Ulyshen, Scott Horn, Michelle Cram, Rabiu Olatinwo, Stephen Fraedrich. 2019. Biology and distribution of Agrilus macer LeConte (Coleoptera: Buprestidae), a species associated with sugarberry (Celtis laevigata Willd.) mortality in the southeastern USA
• Kendhl Seabright, Scott Myers, Stephen Fraedrich, Albert Mayfield, Melissa Warden, Adam Taylor. 2019. Methyl bromide fumigation to eliminate thousand cankers disease causal agents from black walnut
• Jorge R. Ibarra Caballero, Jongbum Jeon, Yong-Hwan Lee, Stephen Fraedrich, Ned B. Klopfenstein, Mee-Sook Kim, Jane E. Stewart. 2019. Genomic comparisons of the laurel wilt pathogen, Raffaelea lauricola, and related tree pathogens highlight an arsenal of pathogenicity related genes
• Albert (Bud) E. Mayfield, Caterina Villari, Jeffrey L. Hamilton, James Slye, Wayne Langston, Kelly Oten, Stephen Fraedrich. 2019. First report of laurel wilt disease caused by Raffaelea lauricola on sassafras in North Carolina
• Susan Best, Stephen Fraedrich. 2018. An assessment of the potential impact of laurel wilt on clonal populations of Lindera melissifolia (Pondberry)
• Stephen Fraedrich, Thomas Harrington, Qiong Huang, Stan Zarnoch, James Hanula, Susan Best. 2018. Brood production by xyleborus glabratus in bolts from trees infected and uninfect ed with the laurel wilt pathogen, raffaelea lauricola.
• R. C . Ploetz, M. A . Hughes, P. E . Kendra, Stephen Fraedrich, D Carrillo, L. L. Stelinski, J. Hulcr, Albert (Bud) E. Mayfield, Tyler J. Dreaden, J. H . Crane, E. A. Evans, B. A. Schaffer, J. A. Rollins. 2017. Recovery plan for laurel wilt of avocado, caused by Raffaelea lauricola
• Doug P. Aubrey, Stephen Fraedrich, Thomas C. Harrington, Rabiu Olatinwo. 2017. Cristulariella moricola associated with foliar blight of Camden white gum ( Eucalyptus benthamii ), a bioenergy crop
• Caroline E. Wuest, Thomas C. Harrington, Stephen Fraedrich, Hye-Young Yun, Sheng-Shan Lu. 2017. Genetic variation in native populations of the laurel wilt pathogen, Raffaelea lauricola , in Taiwan and Japan and the introduced population in the United States
• Stephen Fraedrich, T. C. Harrington, B. A. McDaniel, Susan Best. 2016. First report of laurel wilt, caused by Raffaelea lauricola , on spicebush ( Lindera benzoin ) in South Carolina
• Zafar A Handoo, Lynn K. Carta, Andrea M. Skantar, Sergei A. Subbotin, Stephen Fraedrich. 2016. Molecular and morphological characterization of Xiphinema chambersi population from live oak in Jekyll Island, Georgia, with comments on morphometric variations
• Rabiu Olatinwo, C. Barton, Stephen Fraedrich, W. Johnson, J. Hwang. 2016. First report of laurel wilt, caused by Raffaelea lauricola , on Sassafras ( Sassafras albidum ) in Arkansas
• R. D. Menard, S. R. Clarke, Stephen Fraedrich, T. C. Harrington. 2016. First report of laurel wilt, caused by Raffaelea lauricola, on redbay (Persea borbonia) in Texas.
• Zafar A. Handoo, Lynn K. Carta, Andrea M. Skantar, Sergei A. Subbotin, Stephen Fraedrich. 2016. Molecular and morphological characterization of Xiphinema chambersi population from live oak in Jekyll Island, Georgia, with comments on morphometric variations
• Michelle Cram, Stephen Fraedrich. 2015. Inoculation of fumigated nursery beds and containers with arbuscular mycorrhizal products for eastern redcedar production
• Chase G. Mayers, Douglas L. McNew, Thomas C. Harrington, Richard A. Roeper, Stephen Fraedrich, Peter H.W. Biedermann, Louela A. Castrillo, Sharon E. Reed. 2015. Three genera in the Ceratocystidaceae are the respective symbionts of three independent lineages of ambrosia beetles with large, complex mycangia
• Stephen Fraedrich, C. Wood Johnson, Roger D. Menard, Thomas C. Harrington, Rabiu Olatinwo, G. Susan Best. 2015. First report of Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae) and laurel wilt in Louisiana, USA: The disease continues westward on sassafras
• R. Scott Cameron, James Hanula, Stephen Fraedrich, Chip Bates. 2015. Progression and Impact of Laurel Wilt Disease within Redbay and Sassafras Populations in Southeast Georgia
• Stephen Fraedrich, T. C. Harrington, Susan Best. 2014. Xyleborus glabratus attacks and systemic colonization by Raffaelea lauricola associated with dieback of Cinnamomum camphora in the southeastern United States
• Thomas C. Harrington, Douglas McNew, Chase Mayers, Stephen Fraedrich, Sharon E. Reed. 2014. Ambrosiella roeperi sp. nov. is the mycangial symbiont of the granulate ambrosia beetle, Xylosandrus crassiusculus.
• Albert (Bud) E. Mayfield, Stephen Fraedrich, A. Taylor, Paul Merten, S. W. Myers. 2014. Efficacy of Heat Treatment for the Thousand Cankers Disease Vector and Pathogen in Small Black Walnut Logs
• C.A. Bates, Stephen Fraedrich, T.C. Harrington, R.S. Cameron, R.D. Menard, Susan Best. 2013. First report of laurel wilt, caused by Raffaelea lauricola, on sassafras (Sassafras albidum) in Alabama
• Stephen Fraedrich, Michelle Cram, Zafar A. Handoo, Stan Zarnoch. 2012. Influence of Tylenchorhynchus ewingi on growth of loblolly pine seedlings, and host suitability of legumes and small grains
• Thomas C. Harrington, Hye Young Yun, Sheng-Shan Lu, Hideaki Goto, Dilzara N. Aghayeva, Stephen Fraedrich. 2011. Isolations from the redbay ambrosia beetle, Xyleborus glabratus, confirm that the laurel wilt pathogen, Raffaelea lauricola, originated in Asia
• J.J. Riggins, Stephen Fraedrich, T.C. Harrington. 2011. First report of Laurel Wilt caused by Rafffaelea lauricola on sassafras in Mississippi
• Stephen Fraedrich, T Harrington, C Bates, J Johnson, L. Reid, Susan Best, T Leininger, Tracy S. Hawkins. 2011. Susceptibility to Laurel Wilt and disease incidence in two rare plant species, Pondberry and Pondspice Plant Disease.
• T. C. Harrington, Stephen Fraedrich. 2010. Quantification of Propagules of the Laurel Wilt Fungus and Other Mycangial Fungi from the Redbay Ambrosia Beetle, Xyleborus glabratus
• T.C. Harrington, D.N. Aghayeva, Stephen Fraedrich. 2010. New combinations in Raffaelea, Ambrosiella, and Hyalorhinocladiella, and four new species from the redbay ambrosia beetle, Xyleborus glabratus
• Michelle Cram, Stephen Fraedrich. 2010. Seed diseases and seedborne pathogens of North America
• Michelle Cram, Stephen Fraedrich. 2009. Cram, Michelle M.; Fraedrich, Stephen W. 2009. Stunt nematode (Tylenchorhynchus claytoni) impact on southern pine seedlings and response to a field test of cover crops.
• Michelle Cram, Stephen Fraedrich. 2009. Stunt nematode (Tylenchorhynchus claytoni) impact on southern pine seedlings and response to a field test of cover crops
• T.C. Harrington, Stephen Fraedrich, D.N. Aghayeva. 2008. Raffaelea lauricola, a new ambrosia beetle symbiont and pathogen on the Lauracea.
• James Hanula, Albert E. Mayfield, Stephen Fraedrich, Robert J. Babaglia. 2008. Biology and host associations of redbay ambrosia beetle (Coleoptera: Curculionidae: Scolytinae), exotic vector of laurel wilt killing redbay trees in the Southeastern United States
• Michelle Cram, Stephen Fraedrich. 2007. Detection and management of stunt and stubby root nematodes in a southern forest nursery
• Stephen Fraedrich, Thomas C. Harrington, Robert J. Rabaglia. 2007. Laurel Wilt: a new and devastating disease of redbay caused by a fungal symbiont of the exotic redbay Ambrosia beetle
• Michelle Cram, Scott A. Enebak, Stephen Fraedrich, Lew D. Dwinell, Stanley J. Zarnoch. 2007. Evaluation of fumigants, EPTC herbicide, and Paenibacillus macerans in the production of loblolly pine seedlings
• Dong Wang, Stephen Fraedrich, Jennifer Juzwik, Kurt Spokas, Yi Zhang, William C. Koskinen. 2006. Fumigant distribution in forest nursery soil under water seal and plastic film after application of dazomet, metam-sodium and chloropicrin
• Stephen Fraedrich, Michelle Cram, Stanley J. Zarnoch. 2005. The effect of fallow on Longidorus americanus, a nematode associated with stunting of loblolly pine seedlings in Georgia, USA
• Stephen Fraedrich, L. David Dwinell. 2005. Effects of dazomet, metam sodium, and oxamyl on Longidorus populations and loblolly pine seedline production
• D. Wang, J. Juzwik, Stephen Fraedrich, K. Spokas, Y. Zhang, W.C. Koskinen. 2005. Atmospheric emissions of methyl isothiocyanate and chloropicrin following soil fumigation and surface containment treatment in bare-root forest nurseries
• Michelle Cram, Stephen Fraedrich. 2005. Management Options for Control of a Stunt and Needle Nematode in Southern Forest Nurseries
• Dong Wang, Jennifer Juzwik, Stephen Fraedrich. 2005. Emission and soil distribution of fumigants in forest tree nurseries
• Stephen Fraedrich, L. David Dwinell. 2003. An Evaluation of Dazomet Incorporation Methods on Soilborne Organisms and Pine Seedling Production in Southern Nurseries
• Stephen Fraedrich, L. David Dwinell. 2003. The effects of soil fumigation on pine seedling production, weeds, foliar and soil nutrients, a soilborne microorganisms at a south Georgia (U.S.A.) forest tree nursery
• Stephen Fraedrich, L. David Dwinell, Michelle Cram. 2003. Broadcast Applications of Glyphosate Control Nutsedge at a South Georgia Forest Tree Nursery
• Michelle Cram, Scott A. Enebak, Stephen Fraedrich, L. David Dwinell. 2002. Chloropicrin, EPTC, and plant growth-promoting rhizobacteria for managing soilborne pests in pine nurseries
• Stephen Fraedrich, L. David Dwinell, Michelle Cram. 2002. Seedling production and pest problems at a South Georgia nursery
• Stephen Fraedrich, Michelle Cram. 2002. The Association of a Longidorus Species with Stunting and Root Damage of Loblolly Pine (Pinus taeda L.) Seedlings
• L. David Dwinell, Stephen Fraedrich, D. Adams. 2001. Diseases of pines caused by the pitch canker fungus
• Roger P. Belanger, Thomas Miller, Stanley J. Zarnoch, Stephen Fraedrich, John F. Godbee. 2000. An Integrated Approach Toward Reducing Losses from Fusiform Rust in Merchantable Slash and Loblolly Pine Plantations
• L. David Dwinell, Stephen Fraedrich. 1998. Effect of Dazomet Rate and Incorporation Method on Pine Production in Southern Pine Nurseries
• Stephen Fraedrich, L. David Dwinell. 1998. Evaluation of Fumigants for Pest Management and Seedling Production in Southern Pine Nurseries

• Clemson University, Ph.D., Forestry/Forest Pathology, 1987
• Clemson University, M.S., Plant Pathology, 1980
• Old Dominion University, B.S., Biology, 1978