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Jennifer Parke

Jennifer Parke

Professor (Senior Research)

Ph.D. Botany & Plant Pathology,
Oregon State University, 1982.


Office/Lab: ALS 3051/3036
Phone: 541-737-8170/4347

Research Area

Ecology of plant-associated soil microbes

Description of Research

  • Biology and ecology of Phytophthora ramorum in woody hosts
  • Systems approaches for managing plant pathogens in nurseries
  • Epidemiology and management of Phytophthora diseases in horticultural nurseries
  • Soil microbial community changes associated with soil solarization
  • Phytophthora species in nursery irrigation systems

Research Group Members

Postdoctoral Scientists

Fumiaki Funahashi
Ebba Peterson

Faculty Research Assistants/Associates

Joyce Eberhart

Graduate Students

Chris Benemann (M.S, in Botany and Plant Pathology, expected 2016)

Related Links

Parke webpage in the Department of Crop and Soil Science

Forest Phytophthoras of the World website

Forest Phytophthoras online journal

Online Phytophthora Course for Nursery Growers

SCRI Clean WateR3: Reduce, Remediate, Recycle 

Selected Publications

Funahashi, F.  and Parke, J. L. 2016. Effects of soil solarization and Trichoderma asperellum on soilborne inoculum of Phytophthora ramorum and Phytophthora pini in container nurseries. Plant Dis. 100:438-443.

Parke, J.L., Knaus, B.J., Fieland, V.J., Lewis, C., and Grünwald, N.J. 2014. Phytophthora community structure analyses in Oregon nurseries inform systems approaches to disease management. Phytopathology 104:1052-1062.

Oßwald, W., Fleischmann, F., Rigling, D., Coelho, A. C., Cravador, A., Diez, J. Dalio, R. J., Horta, M., Jung, T., Pfanz, H., Robin, C., Sipos, G., Solla, A., Cech, T., Chambery, A., Diamandis, S., Hansen, E., Jung, T., Orlikowski, L. B., Parke, J., Prospero, S., Werres, S. 2014. Strategies of attack and defence in woody plant–Phytophthora interactions. Forest Pathology 44:169-190.

Raudales, R.E., J.L. Parke, C.L. Guy, and P.R. Fisher. 2014. Control of waterborne microbes in irrigation: a review. Agricultural Water Management 143:9-28.

Liebhold, A. M., Brockerhoff, E. G., Garrett, L. J., Parke, J. L., and Britton, K. O. 2012. Live plant imports: the major pathway for forest insect and pathogen invasions of the US. Frontiers in Ecology and the Environment 10: 135–143.

Parke, J. L. and N. J. Grünwald. 2012. A systems approach for management of pests and pathogens of nursery crops. Plant Dis. 96:1236-1244.

Grünwald, N. K., Martin, F. N., Larsen, M., Sullivan, C., Press, C. M., Coffey,M.D.,Hansen, E. M., and Parke, J. L. 2011. Phytophthora-ID.org: A sequence based Phytophthora identification tool. Plant Dis. 95:337-342.

Ochiai, N., Dragila, M. I., and Parke, J. L. 2011. Pattern swimming of Phytophthora citricola zoospores: an example of microbial bioconvection. Fungal Biology 115:228-235.

Manter, D.K., Kolodny, E.H., Hansen, E.M., and Parke, J. L. 2010. Virulence, sporulation, and elicitin production in three clonal lineages of Phytophthora ramorum. Physiol. Molecular Plant Pathol. doi:10.1016/j.pmpp.2010.04.008

Ochiai, N. Dragila, M. and Parke, J. 2010. Three-dimensional tracking of colloids at the pore scale using epifluorescence microscopy. Vadose Zone J. 9:1–12. doi:10.2136/vzj2009.0047

Collins, B., Parke, J. L., Lachenbruch, B., and Hansen, E. M. 2009. The effects of Phytophthora ramorum infection on hydraulic conductivity and tylosis formation in tanoak sapwood. Can. J. For. Res. 39:1766-1776.

Grünwald, N. et al.  2009. Standardizing the nomenclature for clonal lineages of the sudden oak death pathogen, Phytophthora ramorum. Phytopathology 99:792-795.

Parke, J. L., Oh, E., Voelker, S., Hansen, E.M., Buckles, G., and Lachenbruch, B. 2007. Phytophthora ramorum colonizes tanoak xylem  and is associated with reduced stem water transport.  Phytopathology 97:1558-1567.

Parke, J. L. and Lewis, C. 2007. Root and stem infection of rhododendron from potting medium infested with Phytophthora ramorum . Plant Dis. 91:1265-1270.


Online Outreach