Patrick I. Bennett
Research Plant Pathologist
1221 South Main Street
Contact Patrick I. Bennett
Research interests include ecology and epidemiology of fungal forest pathogens, population genetics/genomics, anthropogenic and environmental influences on forest pathogen populations, and detection/monitoring of forest pathogens using molecular techniques.
Past research has focused on the factors influencing the population structures of economically and ecologically important Douglas-fir pathogens including Nothophaeocryptopus gaeumannii, cause of Swiss needle cast, and Leptographium wageneri, cause of black stain root disease. Other projects investigated the ecology and host distribution of the root disease fungus Armillaria.
Why This Research is Important
Tree diseases are a major cause of lost growth and productivity in forests worldwide. Anthropogenic influences such as the global trade in plants and timber products, climate change, and forest management practices can have wide-ranging effects on the population biology and dynamics of forest pathogens. A comprehensive and holistic understanding of these processes is essential for developing efficient and sustainable management practices that mitigate the impacts of native and invasive forest pathogens.
- Oregon State University, Ph.D. Botany and Plant Pathology 2018
- Humboldt State University, B.S. Biology (ecology emphasis) 2012
- Plant Pathologist, USDA Forest Service, Northern Region, State and Private Forestry, Forest Health Protection (FHP)
- Postdoctoral Scholar, Oregon State University
2018 - 2018
- American Phytopathological Society, Member
Featured Publications & Products
- Bennett, Patrick I; Tabima, Javier F.; Leon, Anna L.; Browning, John ; Wingfield, Michael J.; LeBoldus, Jared M. 2021. Spatial genetic structure of the insect-vectored conifer pathogen Leptographium wageneri suggests long distance gene flow among Douglas-fir plantations in western Oregon.
- Bennett, Patrick I; Stone, Jeffrey K. 2019. Environmental variables associated with Nothophaeocryptopus gaeumannii population structure and Swiss needle cast severity in western Oregon and Washington.
- Smirnova, Ekaterina ; Bennett, Patrick ; Egan, Joel ; Kalachev, Leonid ; Goodburn, John ; Lockman, I. Blakey; Hartless, Cheri . 2021. Impacts of thinning treatments on dynamics of needle disease caused by Elytroderma deformans (Weir) Darker and interactions with bark beetle-attacks in the northern Rocky Mountains.
- Alveshere, B. C.; Bennett, P. ; Kim, M.-S ; Klopfenstein, N. B.; LeBoldus, J. M. 2021. First report of Armillaria cepistipes causing root disease on Populus trichocarpa in Oregon, USA.
- Bennett, Patrick I; LeBoldus, Jared M. 2020. Analyzing genetic variation: What can population genomics tell us about the biology and management of our favorite forest pathogens.
- Bennett, Patrick I; LeBoldus, Jared M. 2020. Insights into the epidemiology and dispersal capabilities of Leptographium wageneri var. pseudotsugae within and between young Douglas-fir stands in western Oregon.
- Hanna, J. W.; Kim, M. -S.; Ramsey, A. C.; Omdal, D. W.; Mulvey, R. L.; Goodrich, B. A.; Ferguson, B. A.; Bronson, J. J.; Goheen, E. M.; Chadwick, K. L.; Kearns, H. S. J.; Lockman, I. B.; LaBarge, A. K. B.; Stewart, J. E.; Maffei, H. M.; Oblinger, B. W.; Smith, A. L.; Ross-Davis, A. L.; Shaw, D. C.; LeBoldus, J. M.; Bennett, P. I; Alveshere, B. C.; Ashiglar, S. M.; McDonald, G. I; Pitman, E. W. I; Donley, J. B.; Bright, B. C.; Warwell, M. V; Klopfenstein, N. B. 2020. Maximum entropy-based bioclimatic models predict areas of current and future suitable habitat for Armillaria species in western Oregon and western Washington.
- McMurtrey, Shawn B.; Alveshere, Brandon C.; Bennett, Patrick I; Kim, Mee-Sook ; Hanna, John W.; Klopfenstein, Ned B.; Blodgett, James T.; LeBoldus, Jared M. 2020. Phylogenetics and host distribution of Armillaria in riparian ecosystems of the northern Great Plains.
- Alveshere, Brandon C.; McMurtrey, Shawn ; Bennett, Patrick ; Kim, Mee-Sook ; Hanna, John W.; Klopfenstein, Ned B.; Blodgett, James T.; LeBoldus, Jared M. 2020. Phylogeography and host range of Armillaria gallica in riparian forests of the northern Great Plains, USA.
- Bennett, P. I; Hood, I. A.; Stone, J. K. 2019. The genetic structure of populations of the Douglas-fir Swiss needle cast fungus Nothophaeocryptopus gaeumannii in New Zealand.
- Bennett, Patrick ; Stone, Jeff . 2018. Evidence for climate as a driver of genetic divergence in native populations of the Douglas-fir Swiss needle cast fungus Phaeocryptopus gaeumannii.
- Bennett, Patrick ; Hill, Jerry ; Savin, Douglas P.; Kegley, Angelia ; Schoettle, Anna ; Sniezko, Richard A.; Bird, Ben ; Stone, Jeffrey . 2018. Genetic variation in stomate densities and needle traits in a rangewide sampling of whitebark Pine (Pinus albicaulis).
- Bennett, Patrick ; Stone, Jeff . 2017. Hierarchical population structure of Phaeocryptopus gaeumannii in the Pacific Northwest: From needles to landscapes.
- Bennett, Patrick ; Stone, Jeffrey . 2016. Assessments of population structure, diversity, and phylogeography of the Swiss needle cast fungus (Phaeocryptopus gaeumannii) in the U.S. Pacific Northwest.
- Bennett, Patrick ; Stone, Jeffrey . 2016. Genotypic diversity and population structure of Phaeocryptopus gaeumannii in New Zealand.
- Bennett, Patrick ; Stone, Jeffrey . 2016. Genotypic diversity, phylogeography, and population structure of two lineages of Phaeocryptopus gaeumannii in the Pacific Northwest.