Research Project: Integrated Disease Management of Exotic and Emerging Plant Diseases of Horticultural Crops

Location: Horticultural Crops Disease and Pest Management Research Unit

Publications (Clicking on the reprint icon will take you to the publication reprint.)

Perspectives towards collective action for pest and disease management in vineyards in the western United States - (Peer Reviewed Journal)
Lowder, S.R., Moyer, M.M., Cooper, M.L., Pscheidt, J., Mahaffee, W.F. 2024. Perspectives towards collective action for pest and disease management in vineyards in the western United States. PhytoFrontiers. https://doi.org/10.1094/PHYTOFR-07-23-0082-R.

Information transfer among grape producers in the western United States on pest and disease management - (Peer Reviewed Journal)
Lowder, S.R., Moyer, M.M., Cooper, M.L., Pscheidt, J., Mahaffee, W.F. 2024. Information transfer among grape producers in the western United States on pest and disease management. PhytoFrontiers. https://doi.org/10.1094/PHYTOFR-07-23-0081-R.

A rapid glove-based inoculum sampling technique to monitor Erysiphe necator in commercial vineyards - (Peer Reviewed Journal)
Lowder, S.R., Neill, T.M., Peetz, A., Miles, T.M., Moyer, M.M., Oliver, C., Stergiopoulos, I., Ding, S., Mahaffee, W.F. 2023. A rapid glove-based inoculum sampling technique to monitor Erysiphe necator in commercial vineyards. Plant Disease. https://doi.org/10.1094/PDIS-02-23-0216-RE.

Openness and computational reproducibility in plant pathology: Where we stand and a way forward - (Peer Reviewed Journal)
Sparks, A.H., Del Ponte, E., Alves, K., Foster, Z.S., Grunwald, N.J. 2023. Openness and computational reproducibility in plant pathology: Where we stand and a way forward. Phytopathology. https://doi.org/10.1094/PHYTO-10-21-0430-PER.

A fast-response, wind angle-sensitive model for predicting mean winds in row-organized canopies - (Peer Reviewed Journal)
Ulmer, L., Margairaz, F., Bailey, B., Mahaffee, W.F., Pardyjak, E., Stoll, R. 2022. A fast-response, wind angle-sensitive model for predicting mean winds in row-organized canopies. Agricultural and Forest Meteorology. 329. Article 109273. https://doi.org/10.1016/j.agrformet.2022.109273.

Catching spores: Linking epidemiology, pathogen biology, and physics to ground-based airborne inoculum monitoring - (Peer Reviewed Journal)
Mahaffee, W.F., Margairaz, F., Ulmer, L., Bailey, B.N., Stoll, R. 2023. Catching spores: Linking epidemiology, pathogen biology, and physics to ground-based airborne inoculum monitoring. Plant Disease. 107(1):13-33. https://doi.org/10.1094/PDIS-11-21-2570-FE.

Quantifying turbulence heterogeneity in a vineyard using eddy-covariance and scintillometer measurements - (Peer Reviewed Journal)
Perelet, A.O., Ward, H.C., Stoll, R., Mahaffee, W.F., Pardyjak, E. 2022. Quantifying turbulence heterogeneity in a vineyard using eddy-covariance and scintillometer measurements. Boundary Layer Meteorology. 184:479-504. https://doi.org/10.1007/s10546-022-00714-9.

Genomic biosurveillance detects a sexual hybrid in the sudden oak death pathogen - (Peer Reviewed Journal)
Hamelin, R.C., Bilodeau, G., Heinzelmann, R., Hrywkiw, K., Capron, A., Dort, E., Dale, A., Giroux, E., Kus, S., Carleson, N., Grunwald, N.J., Feau, N. 2022. Genomic biosurveillance detects a sexual hybrid in the sudden oak death pathogen. Communications Biology. 5. Article 477. https://doi.org/10.1038/s42003-022-03394-w.

Taxonomic reclassification of the fungal pathogen causing dry berry disease of caneberries into the division Ascomycota as Monilinia rubi - (Peer Reviewed Journal)
Weldon, W., McGhee, G., Jones, L.A., Stockwell, V.O. 2022. Taxonomic reclassification of the fungal pathogen causing dry berry disease of caneberries into the division Ascomycota as Monilinia rubi. Plant Disease. https://doi.org/10.1094/PDIS-11-21-2618-SR.

Repeated emergence of sudden oak death in Oregon: Chronology, impact, and management - (Review Article)
LeBoldus, J.M., Navarro, S.M., Kline, N., Ritokova, G., Grunwald, N.J. 2022. Repeated emergence of sudden oak death in Oregon: Chronology, impact, and management. Plant Disease. 106(12):3013-3021. https://doi.org/10.1094/PDIS-02-22-0294-FE.

A new oomycete metabarcoding method using the rps10 gene - (Peer Reviewed Journal)
Foster, Z.S., Albornoz, F.E., Fieland, V.J., Larsen, M.M., Jones, F.A., Tyler, B.M., Nguyen, H.D., Burgess, T., Riddell, C., Voglmayr, H., Martin, F.N., Grunwald, N.J. 2022. A new oomycete metabarcoding method using the rps10 gene. Phytobiomes Journal. 6(3):214-226. https://doi.org/10.1094/PBIOMES-02-22-0009-R.

First report of the NA2 clonal lineage of the sudden oak death pathogen, Phytophthora ramorum, infecting tanoak in Oregon forests - (Peer Reviewed Journal)
Peterson, E.K., Sondreli, K.L., Reeser, P., Navarro, S., Nichols, C., Wiese, R., Fieland, V.J., Grunwald, N.J., LeBoldus, J.M. 2022. First report of the NA2 clonal lineage of the sudden oak death pathogen, Phytophthora ramorum, infecting tanoak in Oregon forests. Plant Disease Notes. 106(9):2537. https://doi.org/10.1094/PDIS-10-21-2152-PDN.

Identification of putative SDHI target site mutations in the SDHB, SDHC, and SDHD subunits of the grape powdery mildew pathogen Erysiphe necator - (Peer Reviewed Journal)
Stergiopoulos, I., Aoun, N., Huynh, Q., Neill, T.M., Lowder, S., Newbold, C., Cooper, M.L., Ding, S., Moyer, M., Miles, T.D., Oliver, C.L., Urbez-Torres, J., Mahaffee, W.F. 2022. Identification of putative SDHI target site mutations in the SDHB, SDHC, and SDHD subunits of the grape powdery mildew pathogen Erysiphe necator. Molecular Plant Pathology. 106(9):2310-2320. https://doi.org/10.1094/PDIS-09-21-1993-RE.

High-quality, phased genomes of Phytophthora ramorum clonal lineages NA1 and EU1 - (Peer Reviewed Journal)
Carleson, N., Press, C.M., Grunwald, N.J. 2022. High-quality, phased genomes of Phytophthora ramorum clonal lineages NA1 and EU1. Molecular Plant-Microbe Interactions. 35(4):360-363. https://doi.org/10.1094/MPMI-11-21-0264-A.

First report of Gnomoniopsis idaeicola causing cane wilt and canker in commercial blackberry fields in Oregon - (Peer Reviewed Journal)
Stockwell, V.O., Shaffer, B.T., McGhee, G., Hardigan, M.A. 2022. First report of Gnomoniopsis idaeicola causing cane wilt and canker in commercial blackberry fields in Oregon. Plant Disease. 106(7):1980. https://doi.org/10.1094/PDIS-11-21-2397-PDN.

Susceptibility of some Corylus avellana L. cultivars to Xanthomonas arboricola pv. corylina - (Peer Reviewed Journal)
Webber, B.J., Wada, S., Stockwell, V.O., Wiman, N.G. 2021. Susceptibility of some Corylus avellana L. cultivars to Xanthomonas arboricola pv. corylina. Frontiers in Plant Science. 12. Article 800339. https://doi.org/10.3389/fpls.2021.800339.

Risk of epidemic development in nurseries from soil inoculum of Phytophthora ramorum - (Peer Reviewed Journal)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2022. Risk of epidemic development in nurseries from soil inoculum of Phytophthora ramorum. Phytopathology. 112(5):1046-1054. https://doi.org/10.1094/PHYTO-06-21-0245-R.

Adaption and validation of a voxel based energy transport model for conifer species - (Peer Reviewed Journal)
Moody, M.J., Bailey, B.N., Pardyjak, E., Mahaffee, W.F., Stoll, R. 2021. Adaption and validation of a voxel based energy transport model for conifer species. Urban Climate. 39. Article 100967. https://doi.org/10.1016/j.uclim.2021.100967.

Phylogeography of the wide-host range panglobal plant pathogen phytophthora cinnamomi - (Peer Reviewed Journal)
Shakya, S.K., Grunwald, N.J., Fieland, V.J., Knaus, B.J., Weiland, G.E., Maia, C., Drenth, A., Guest, D.I., Liew, E.C., Crane, C., Chang, T., Fu, C., Chi, N., Thu, P., Scanu, B., Jung, M.H., Jung, T. 2021. Phylogeography of the wide-host range panglobal plant pathogen phytophthora cinnamomi. Molecular Ecology. 30(20):5164-5178. https://doi.org/10.1111/mec.16109.

Diversification of plasmids in a genus of pathogenic and nitrogen-fixing bacteria - (Peer Reviewed Journal)
Weisberg, A.J., Miller, M., Ream, W., Grunwald, N.J., Chang, J.H. 2021. Diversification of plasmids in a genus of pathogenic and nitrogen-fixing bacteria. Proceedings of the Philosophical Transactions of The Royal Society B: Biological Sciences. 377(1842). Article 20200466. https://doi.org/10.1098/rstb.2020.0466.

High quality, phased genomes sequences of phytophthora ramorum clonal lineages NA1 and EU1 - (Pre-print Publication)
Carleson, N.C., Press, C.M., Grunwald, N.J. 2021. High quality, phased genomes sequences of phytophthora ramorum clonal lineages NA1 and EU1. bioRxiv. 2021.06.23.449625. https://doi.org/10.1101/2021.06.23.449625.

Growth, infection and aggressiveness of phytophthora pathogens on rhododendron leaves - (Peer Reviewed Journal)
Taylor, C., Grunwald, N.J. 2021. Growth, infection and aggressiveness of phytophthora pathogens on rhododendron leaves. CABI Agriculture and Bioscience (CABI A&B). 2:26. https://doi.org/10.1186/s43170-021-00048-5.

Genetic processes facilitating pathogen emergence - (Book / Chapter)
Grunwald, N.J., Brown, C., Ip, H., Chang, J. 2022. Genetic processes facilitating pathogen emergence. In: Cardwell, K.F., Bailey, K.L., editors. Tactical Sciences for Biosecurity in Animal and Plant Systems. Hershey, PA: IGI Global. p. 32-53. https://doi.org/10.4018/978-1-7998-7935-0.ch002.

Genomic approaches to characterize plant pathogen epidemiology and develop diagnostics - (Review Article)
Weisberg, A.J., Putnam, M.L., Grunwald, N.J., Savory, E.A., Chang, J.H. 2021. Genomic approaches to characterize plant pathogen epidemiology and develop diagnostics. Annual Review of Phytopathology. 59:311-332. https://doi.org/10.1146/annurev-phyto-020620-121736.

Screening cotoneaster sp. for resistance to fire blight using foliar inoculation with two strains of erwinia amylovora - (Peer Reviewed Journal)
Neill, K.E., Contreras, R.N., Stockwell, V.O., Hsuan, C. 2021. Screening cotoneaster sp. for resistance to fire blight using foliar inoculation with two strains of erwinia amylovora. HortScience. 56(7):824-830. https://doi.org/10.21273/HORTSCI15872-21.

Assessing the United States grape industry’s understanding of fungicide resistance mitigation practices - (Peer Reviewed Journal)
Oliver, C.L., Cooper, M., Lewis-Ivey, M.L., Brannen, P., Miles, T., Mahaffee, W.F., Moyer, M.M. 2021. Assessing the wine grape industry’s understanding of fungicide resistance mitigation practices for grapevine powdery mildew (erysiphe necator) in the United States. American Journal of Enology and Viticulture. 72(2):181-193. https://doi.org/10.5344/ajev.2021.20062.

First reports of phytophthora ramorum clonal lineages NA1 and EU1 from tanoaks in Del Norte county, California - (Peer Reviewed Journal)
Garbelotto, M., Schmidt, D., Dovana, F., Lee, C., Fieland, V.J., Grunwald, N.J., Valachovic, Y. 2021. First reports of phytophthora ramorum clonal lineages NA1 and EU1 from tanoaks in Del Norte county, California. Plant Disease. https://doi.org/10.1094/PDIS-12-20-2633-PDN.

Entering the international year of fruits and vegetables: tradeoffs between food production and the environment - (Other)
Grunwald, N.J. 2021. Entering the international year of fruits and vegetables: tradeoffs between food production and the environment. CABI Agriculture and Bioscience (CABI A&B). 2:2. https://doi.org/10.1186/s43170-021-00023-0.

Fatty acid profile as an indicator of larval host for adult drosophila suzukii - (Peer Reviewed Journal)
Wiman, N.G., Andrews, H., Rudolph, E., Lee, J.C., Choi, M.Y. 2020. Fatty acid profile as an indicator of larval host for adult drosophila suzukii. Insects. 11(11). Article 752. https://doi.org/10.3390/insects11110752.

Transcriptome-derived amplicon sequencing (AmpSeq) markers elucidate the U.S. podosphaera macularis population structure across feral and commercial plantings of Humulus lupulus - (Peer Reviewed Journal)
Weldon, W.A., Knaus, B.J., Grunwald, N.J., Havill, J.M., Block, M.H., Gent, D.H., Cadle Davidson, L.E., Gadoury, D.M. 2020. Transcriptome-derived amplicon sequencing (AmpSeq) markers elucidate the U.S. podosphaera macularis population structure across feral and commercial plantings of Humulus lupulus. Phytopathology. 111:194-203. https://doi.org/10.1094/PHYTO-07-20-0299-FI.

Molecular phylogenetics and population structure of phytophthora pluvialis - (Peer Reviewed Journal)
Tabima, J.F., Gonen, L., Gomez, M., Panda, P., Grunwald, N.J., Hansen, E., Mcdougal, R., Leboldus, J., Williams, N. 2020. Molecular phylogenetics and population structure of phytophthora pluvialis. Phytopathology. 111:108-115. https://doi.org/10.1094/PHYTO-06-20-0232-FI.

Phylogeographic approaches to characterize the emergence and spread of plant pathogens - (Review Article)
Rasmussen, D.A., Grunwald, N.J. 2020. Phylogeographic approaches to characterize the emergence and spread of plant pathogens. Phytopathology. 111(1):68-77. https://doi.org/10.1094/PHYTO-07-20-0319-FI.

Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests - (Peer Reviewed Journal)
Carleson, N.C., Daniels, H.A., Larsen, M.M., Sutton, W., Reeser, P.W., Kanaskie, A., Hansen, E.M., Navarro, S.M., Leboldus, J.M., Grunwald, N.J. 2021. Novel introductions and epidemic dynamics of the sudden oak death pathogen Phytophthora ramorum in Oregon forests. Phytopathology. 111(4):731-740. https://doi.org/10.1094/PHYTO-05-20-0164-R.

Launching CABI Agriculture and Bioscience: Ensuring that today's research meets tomorrow's global challenges in agriculture and the environment - (Other)
Grunwald, N.J., Marquet, P.A., Robinson, A. 2020. Launching CABI Agriculture and Bioscience: Ensuring that today's research meets tomorrow's global challenges in agriculture and the environment. CABI Agriculture and Bioscience. 1:5. https://doi.org/10.1186/s43170-020-00005-8.

Changes in aphis regulations in interstate movement of low-risk plant pests in the continental U.S. - (Other)

Genome-wide increased copy number is associated with emergence of dominant clones of the Irish potato famine pathogen Phytophthora infestans - (Peer Reviewed Journal)
Knaus, B.J., Tabima, J.F., Shakya, S.K., Judelson, H.S., Grunwald, N.J. 2020. Genome-wide increased copy number is associated with emergence of dominant clones of the Irish potato famine pathogen Phytophthora infestans. mBio. 11(3). https://doi.org/10.1128/mBio.00326-20.

Improved deferred antagonism technique for detecting antibiosis - (Peer Reviewed Journal)
Klein, J.M., Stockwell, V.O., Minsavage, G.V., Vallad, G.E., Goss, E.M., Jones, J.B. 2020. Improved deferred antagonism technique for detecting antibiosis. Letters in Applied Microbiology. https://doi.org/10.1111/lam.13339.

Unexpected conservation and global transmission of agrobacterial virulence plasmids - (Peer Reviewed Journal)
Weisberg, A., Davis, E.W., Tabima, J., Belcher, M.S., Miller, M., Kuo, C., Lai, E., Loper, J.E., Grunwald, N.J., Putnam, M.L., Chang, J.H. 2020. Unexpected conservation and global transmission of agrobacterial virulence plasmids. Science. 368(6495). https://doi.org/10.1126/science.aba5256.

First report of the NA2 clonal lineage of Phytophthora ramorum in Indiana causing ramorum leaf blight on Rhododendron - (Peer Reviewed Journal)
Press, C.M., Fieland, V.J., Creswell, T., Bonkowski, J., Miles, L., Grunwald, N.J. 2020. First report of the NA2 clonal lineage of Phytophthora ramorum in Indiana causing ramorum leaf blight on Rhododendron. Plant Disease. 104(6):1875. https://doi.org/10.1094/PDIS-12-19-2543-PDN.

Botrytis cinerea populations infecting small fruit hosts in the Pacific Northwest are highly structured on a local scale - (Peer Reviewed Journal)
Kozhar, O., Larsen, M.M., Grunwald, N.J., Peever, T.L. 2020. Botrytis cinerea populations infecting small fruit hosts in the Pacific Northwest are highly structured on a local scale. Applied and Environmental Microbiology. 86(9):e02908-19. https://doi.org/10.1128/AEM.02908-19.

Characterization of isolates of Xanthomonas arboricola pv. corylina, the causal agent of bacterial blight, from Oregon hazelnut orchards - (Peer Reviewed Journal)

The composition of the fungal and oomycete microbiome of Rhododendron roots under varying growth conditions, nurseries, and cultivars - (Peer Reviewed Journal)
Foster, Z.S., Weiland, G.E., Scagel, C.F., Grunwald, N.J. 2020. The composition of the fungal and oomycete microbiome of Rhododendron roots under varying growth conditions, nurseries, and cultivars. Phytobiomes Journal. 4(2):156-164. https://doi.org/10.1094/PBIOMES-09-19-0052-R.

Allele-specific detection methods for QoI fungicide resistant Erysiphe necator in vineyards - (Peer Reviewed Journal)
Miles, T.D., Neill, T.M., Colle, M., Warneke, B., Robinson, G., Stergiopoulos, I., Mahaffee, W.F. 2020. Allele-specific detection methods for QoI fungicide resistant Erysiphe necator in vineyards. Plant Disease. https://doi.org/10.1094/PDIS-11-19-2395-RE.

Geospatial analytics for plant disease management - (Book / Chapter)
Magarey, R., Meentemeyer, R., Grunwald, N.J. 2020. Geospatial analytics for plant disease management. Book Chapter. -.

Assessing fire blight resistance of new Cotoneaster genotypes inoculated with Erwinia amylovora in the field - (Peer Reviewed Journal)

Genetic differentiation and clonal expansion of Chinese Botrytis cinerea populations from tomato and other crops in China - (Peer Reviewed Journal)
Diao, Y., Larsen, M.M., Kamvar, Z.N., Zhang, C., Wang, W., Li, D., Peng, Q., Knaus, B.J., Foster, Z.S., Grunwald, N.J., Liu, X. 2019. Genetic differentiation and clonal expansion of Chinese Botrytis cinerea populations from tomato and other crops in China. Phytopathology. 110(2):428-439. https://doi.org/10.1094/PHYTO-09-18-0347-R.

Effect of fungicide mobility and application timing on the management of grape powdery mildew - (Peer Reviewed Journal)
Warneke, B., Thiessen, L., Mahaffee, W.F. 2020. Effect of fungicide mobility and application timing on the management of grape powdery mildew. Plant Disease. 104(3):1167-1174. https://doi.org/10.1094/PDIS-06-19-1285-RE.

Genetic diversity of Verticillium dahliae isolates from mint detected with genotyping by sequencing - (Peer Reviewed Journal)
Dung, J., Knaus, B.J., Fellows, H., Grunwald, N.J., Vining, K. 2019. Genetic diversity of Verticillium dahliae isolates from mint detected with genotyping by sequencing. Phytopathology. 109(11):1966-1974. https://doi.org/10.1094/PHYTO-12-18-0475-R.

Are traded forest tree seeds a potential source of nonnative pests? - (Peer Reviewed Journal)
Franic, I., Prospero, S., Hartmann, M., Allan, E., Auger-Rozenberg, M., Grunwald, N.J., Kenis, M., Roques, A., Schneider, S., Sniezko, R., Williams, W., Eschen, R. 2019. Are traded forest tree seeds a potential source of nonnative pests? Ecological Applications. 29(7). https://doi.org/10.1002/eap.1971.

Population genetic structure and cryptic species of Plasmopara viticola in Australia - (Peer Reviewed Journal)
Taylor, A.S., Knaus, B.J., Grunwald, N.J., Burgess, T. 2019. Population genetic structure and cryptic species of Plasmopara viticola in Australia. Phytopathology. 109(11):1975-1983. https://doi.org/10.1094/PHYTO-04-19-0146-R.

From genomes to forest management – tackling invasive Phytophthora species in the era of genomics - (Review Article)
Kerio, S., Daniels, H., Gomez-Gollego, M., Tabima, J., Lenz, R., Sondreli, K., Grunwald, N.J., Williams, N., Mcdougal, R., Leboldus, J. 2019. From genomes to forest management – tackling invasive Phytophthora species in the era of genomics. Canadian Journal of Plant Pathology. 42(1):1-29. https://doi.org/10.1080/07060661.2019.1626910.

Ecology and evolution of the sudden oak death pathogen Phytophthora ramorum - (Review Article)
Grunwald, N.J., LeBoldus, J.M., Hamelin, R.C. 2019. Ecology and evolution of the sudden oak death pathogen Phytophthora ramorum. Annual Review of Phytopathology. 57:301-321. https://doi.org/10.1146/annurev-phyto-082718-100117.

effectR: An expandable R package to predict candidate effectors - (Peer Reviewed Journal)
Tabima, J.F., Grunwald, N.J. 2019. effectR: An expandable R package to predict candidate effectors. Molecular Plant-Microbe Interactions. 32(9):1067-1076. https://doi.org/10.1094/MPMI-10-18-0279-TA.

Pacific Northwest raspberry growers’ perceptions and practices regarding soil quality and fumigation - (Peer Reviewed Journal)
Rudolph, R.E., Devetter, L.W., Benedict, C., Zasada, I.A. 2019. Pacific Northwest raspberry growers’ perceptions and practices regarding soil quality and fumigation. Renewable Agriculture and Food Systems. 29(4):482-489. https://doi.org/10.21273/HORTTECH04354-19.

Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2015 - (Research Notes)
Press, C.M., Rolfe, K.J., Grunwald, N.J. 2019. Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2015. Plant Disease Management Reports. 12:OT027.

Pantocin A, a peptide-derived antibiotic involved in biological control by plant-associated Pantoea species - (Peer Reviewed Journal)
Smits, T., Duffy, B., Blom, J., Ishimaru, C., Stockwell, V.O. 2019. Pantocin A, a peptide-derived antibiotic involved in biological control by plant-associated Pantoea species. Archives Of Microbiology. 201(6):713-722. https://doi.org/10.1007/s00203-019-01647-7.

Geospatial analytics for plant disease management - (Book / Chapter)
Margarey, R., Meentemeyer, R., Grunwald, N.J. 2020. Geospatial analytics for plant disease management. In: J.B. Ristanio and A. Records, editors. Emerging Plant Diseases and Global Food Security. St. Paul, MN: APS Publications. p. 221-237.

Population structure of Phytophthora plurivora on Rhododendron in Oregon nurseries - (Peer Reviewed Journal)
Carleson, N.C., Fieland, V.J., Scagel, C.F., Weiland, G.E., Grunwald, N.J. 2019. Population structure of Phytophthora plurivora on Rhododendron in Oregon nurseries. Plant Disease. 103(8):1923-1930. https://doi.org/10.1094/PDIS-12-18-2187-RE.

Mitotic recombination and a two-speed genome shape the evolution of asexual lineages of the sudden oak death pathogen Phytophthora ramorum - (Peer Reviewed Journal)
Dale, A.L., Feau, N., Everhart, S.E., Dhillon, B., Wong, B., Sheppard, J., Bilodeau, G.J., Brar, A., Tabima, J.F., Brasier, C.M., Grunwald, N.J., Hamelin, R.C. 2019. Mitotic recombination and a two-speed genome shape the evolution of asexual lineages of the sudden oak death pathogen Phytophthora ramorum. mBio. 10(2):e02452-18. https://doi.org/10.1128/mBio.02452-18.

Referee report for: Ranacapa: An R package and Shiny web app to explore environmental DNA data with exploratory statistics and interactive visualizations - (Other)
Grunwald, N.J., Foster, Z. 2018. Referee report for: Ranacapa: An R package and Shiny web app to explore environmental DNA data with exploratory statistics and interactive visualizations. F1000Research. 7:1734. https://doi.org/10.5256/f1000research.18233.r40128.

Initiatives for addressing antimicrobial resistance in the environment: Current situation and challenges - (Other)
Ahammad, S.Z., Arduino, M., de Roda Husman, A., Durso, L.M., Edge, T., Garber, G., Garland, J., Gaze, W., Graham, D., Kirby, A., Lapara, T., McLain, J., McDonald, C., Nappier, S., Patrick, D., Rousham, E., Stekel, D., Topp, E., Verner-Jeffreys, D., Wittum, T., Wong, A., Aga, D., Davies, J., Gandra, S., Kasprzyk-Hordern, B., Larsson, J., Snape, J., Slijkhuis, H., Sweetman, A., Voulvoulis, N., Bayen, S., Beer, K., Dirven, H., Jackson, B., Lejeune, J., Stockwell, V.O., Tiedje, J., Patel, J. 2018. Initiatives for addressing antimicrobial resistance in the environment: Current situation and challenges. Available: https://wellcome.ac.uk/sites/default/files/antimicrobial-resistance-environment-report.pdf.

Phytophthora urerae sp. nov., a new clade 1c relative of the Irish famine pathogen Phytophthora infestans from South America - (Peer Reviewed Journal)
Grunwald, N.J., Forbes, G.A., Perez-Barrera, W., Stewart, J.E., Fieland, V.J., Larsen, M.M. 2018. Phytophthora urerae sp. nov., a new clade 1c relative of the Irish famine pathogen Phytophthora infestans from South America. Phytopathology. 68(3):557-565. https://doi.org/10.1111/ppa.12968.

Expansion and divergence of Argonaute genes in the Oomycete genus Phytophthora - (Peer Reviewed Journal)
Bollman, S.R., Press, C.M., Tyler, B.M., Grunwald, N.J. 2018. Expansion and divergence of Argonaute genes in the Oomycete genus Phytophthora. Frontiers in Microbiology. 9:2841. https://doi.org/10.3389/fmicb.2018.02841.

Phenotypic effects of PBAN RNAi using oral delivery of dsRNA to corn earworm (Lepidoptera: Noctuidae) and tobacco budworm larvae - (Peer Reviewed Journal)
Choi, M.Y., Vander Meer, R.K. 2018. Phenotypic effects of PBAN RNAi using oral delivery of dsRNA to corn earworm (Lepidoptera: Noctuidae) and tobacco budworm larvae. Journal of Economic Entomology. 112(1):434-439. https://doi.org/10.1093/jee/toy356.

Formation of Erysiphe necator Chasmothecia in the Pacific Northwest United States - (Peer Reviewed Journal)
Thiessen, L.D., Neill, T.M., Mahaffee, W.F. 2019. Formation of Erysiphe necator Chasmothecia in the Pacific Northwest United States. Plant Disease. 103(5):890-896. https://doi.org/10.1094/PDIS-06-18-1012-RE.

Stable predictive markers for Phytophthora sojae avirulence genes that impair infection of soybean uncovered by whole genome sequencing of 31 isolates - (Peer Reviewed Journal)
Arsenault-Labrecque, G., Sonah, H., Lebreton, A., Labbé, C., Marchand, G., Xue, A., Belzile, F., Knaus, B.J., Grunwald, N.J., Bélanger, R.R. 2018. Stable predictive markers for Phytophthora sojae avirulence genes that impair infection of soybean uncovered by whole genome sequencing of 31 isolates. BMC Biology. 16:80. https://doi.org/10.1186/s12915-018-0549-9.

A review of Sedum section Gormania (Crassulaceae) in western North America - (Peer Reviewed Journal)
Zika, P.F., Wilson, B.L., Brainerd, R.E., Otting, N., Darington, S., Knaus, B.J., Nelson, J.K. 2018. A review of Sedum section Gormania (Crassulaceae) in western North America. Phytotaxa. 368(1):1-61. https://dx.doi.org/10.11646/phytotaxa.368.1.1.

Response to comments on “Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management” - (Peer Reviewed Journal)
Chang, J.H., Putnam, M.L., Grunwald, N.J., Savory, E.A., Fuller, S.L., Weisberg, A.J. 2018. Response to comments on “Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management”. eLife. 7:e35852. https://doi.org/10.7554/eLife.35852.

Contribution of native plasmids to fitness and fire blight biocontrol efficacy of Pantoea vagans strain C9-1 - (Abstract Only)
Klein, J.M., Johnson, K.B., Loper, J.E., Stockwell, V.O. 2018. Contribution of native plasmids to fitness and fire blight biocontrol efficacy of Pantoea vagans strain C9-1. Abstract for International Congress of Plant Pathology: Plant Health in A Global Economy; 2018 July 29-Aug 3; Boston, MA

Fungicide resistance profiles of Botrytis cinerea isolated from berry crops in Oregon - (Abstract Only)
Stockwell, V.O., Shaffer, B.T., Jones, L.A., Pscheidt, J.W. 2018. Fungicide resistance profiles of Botrytis cinerea isolated from berry crops in Oregon. Abstract for International Congress of Plant Pathology: Plant Health in A Global Economy; 2018 July 29-Aug 3; Boston, MA

Inferring variation in copy number using high throughput sequencing data in R - (Peer Reviewed Journal)
Knaus, B.J., Grunwald, N.J. 2018. Inferring variation in copy number using high throughput sequencing data in R. Frontiers in Genetics. 9:123. https://doi.org/10.3389/fgene.2018.00123.

Interruption and reduction of Erysiphe necator cleistothecia development utilizing fungicidal oil - (Peer Reviewed Journal)
Thiessen, L., Neill, T.M., Mahaffee, W.F. 2018. Interruption and reduction of Erysiphe necator cleistothecia development utilizing fungicidal oil. Plant Health Progress. 19:153-155. https://doi.org/10.1094/php-11-17-0070-rs.

Taxa: An R package implementing data standards and methods for manipulation of taxonomic data - (Peer Reviewed Journal)
Foster, Z.S., Chamberlain, S., Grunwald, N.J. 2018. Taxa: An R package implementing data standards and methods for manipulation of taxonomic data. F1000Research. 7:272. https://doi.org/10.12688/f1000research.14013.1.

Variation in genetic diversity of Phytophthora infestans populations in Mexico from the center of origin outwards - (Peer Reviewed Journal)
Shakya, S.K., Larsen, M.M., Condoy Cuenca, M.M., Lozoya-Saldana, H., Grunwald, N.J. 2018. Variation in genetic diversity of Phytophthora infestans populations in Mexico from the center of origin outwards. Plant Disease. 102(8):1534-1540. https://doi.org/10.1094/PDIS-11-17-1801-RE.

Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States - (Peer Reviewed Journal)
Tabima, J.F., Coffey, M.D., Zasada, I.A., Grunwald, N.J. 2018. Populations of Phytophthora rubi show little differentiation and high rates of migration among states in the Western United States. Molecular Plant-Microbe Interactions. 31(6):614-622. https://doi.org/10.1094/MPMI-10-17-0258-R.

Development of a quantitative loop-mediated isothermal amplification assay for the field detection of Erysiphe necator - (Peer Reviewed Journal)
Thiessen, L.D., Neill, T.M., Mahaffee, W.F. 2018. Development of a quantitative loop-mediated isothermal amplification assay for the field detection of Erysiphe necator. PeerJ. 6:e4639. https://doi.org/10.7717/peerj.4639.

Secondary metabolism and interspecific competition affect accumulation of spontaneous mutants in the GacS-GacA regulatory system in Pseudomonas protegens - (Peer Reviewed Journal)
Yan, Q., Lopes, L., Shaffer, B.T., Kidarsa, T.A., Vining, O., Philmus, B., Song, C., Stockwell, V.O., Raaijmakers, J., McPhail, K.L., Andreote, F., Chang, J.H., Loper, J.E. 2018. Secondary metabolism and interspecific competition affect accumulation of spontaneous mutants in the GacS-GacA regulatory system in Pseudomonas protegens. mBio. 9(1):e01845-17. https://doi.org/10.1128/mBio.01845-17.

Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America - (Peer Reviewed Journal)
Brar, S., Tabima, J.F., Mcdougal, R.L., Dupont, P.Y., Feau, N., Hamelin, R.C., Panda, P., Leboldus, J.M., Grunwald, N.J., Hansen, E.M., Bradshaw, R.E., Williams, N.M. 2018. Genetic diversity of Phytophthora pluvialis, a pathogen of conifers, in New Zealand and the west coast of the United States of America. Plant Pathology. 67:1131–1139. https://doi.org/10.1111/ppa.12812.

Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management - (Peer Reviewed Journal)
Savory, E., Fuller, S., Weisberg, A., Thomas, W., Gordon, M., Stevens, D., Creason, A., Belcher, M., Serdani, M., Wiseman, M., Putnam, M., Grunwald, N.J., Chang, J. 2017. Evolutionary transitions between beneficial and phytopathogenic Rhodococcus challenge disease management. eLife. 6:e30925. https://doi.org/10.7554/eLife.30925.

First report of Phytophthora ramorum lineage EU1 infecting douglas-fir and grand fir in Oregon - (Peer Reviewed Journal)
Leboldus, J.M., Sondreli, K.L., Sutton, W., Reeser, P., Navarro, S., Kanaskie, A., Grunwald, N.J. 2017. First report of Phytophthora ramorum lineage EU1 infecting douglas-fir and grand fir in Oregon. Plant Disease. 102(2):455. https://doi.org/10.1094/pdis-05-17-0681-pdn.

Phytophthora betacei, a new species within Phytophthora clade 1c causing late blight on Solanum betaceum in Colombia - (Peer Reviewed Journal)
Mideros, M.F., Turissini, D.A., Guayazán, N., Ibarra-Avila, H., Danies, G., Cárdenas, M., Myers, K., Tabima, J., Goss, E.M., Bernal, A., Lagos, L.E., Grajales, A., Gonzalez, L.N., Cooke, D.E., Fry, W.E., Grunwald, N.J., Matute, D.R., Restrepo, S. 2018. Phytophthora betacei, a new species within Phytophthora clade 1c causing late blight on Solanum betaceum in Colombia. Persoonia: Molecular Phylogeny and Evolution of Fungi. 41:39–55. https://doi.org/10.3767/persoonia.2018.41.03.

The sudden oak death epidemic in Oregon - (Trade Journal)
Navarro, S., Lujan, M.A., Mcaninch, G.L., Goheen, E., Grunwald, N.J., Larsen, M.M., Fieland, V., Tabima, J., Leboldus, J. 2017. The sudden oak death epidemic in Oregon. Digger. Available: http://www.diggermagazine.com/growing-knowledge-201709/.

Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2014 - (Peer Reviewed Journal)
Press, C.M., Rolfe, K.J., Weiland, G.E., Grunwald, N.J. 2017. Efficacy of management tools for control of Phytophthora plurivora leaf spot of Rhododendron, 2014. Plant Disease Management Reports. 11:OT035.

The effects of cultivar, production system, and nursery on the composition of the rhizosphere microbiome of cultivated rhododendrons in Oregon - (Abstract Only)
Foster, Z.S., Weiland, G.E., Scagel, C.F., Grunwald, N.J. 2017. The effects of cultivar, production system, and nursery on the composition of the rhizosphere microbiome of cultivated rhododendrons in Oregon [abstract]. Phytopathology. 107:S5.4. https://doi.org/10.1094/PHYTO-107-12-S5.1.

Development and validation of polymorphic microsatellite loci for the NA2 lineage of Phytophthora ramorum from whole genome sequence data - (Peer Reviewed Journal)
Gagnon, M., Feau, N., Dale, A.L., Dhillon, B., Hamelin, R.C., Brasier, C.M., Grunwald, N.J., Briere, S.C., Bilodeau, G.J. 2017. Development and validation of polymorphic microsatellite loci for the NA2 lineage of Phytophthora ramorum from whole genome sequence data. Plant Disease. 101(5):666-673. doi: 10.1094/PDIS-11-16-1586-RE.

Slowing spread of sudden oak death in Oregon forests, 2001-2015 - (Proceedings)
Kanaskie, A., Wiese, R., Norlander, D., Laine, J., Navarro, S., Goheen, E.M., Rhatigan, R., Hansen, E., Sutton, W., Reeser, P., Grunwald, N.J., Kamvar, Z., Osterbauer, N. 2017. Slowing spread of sudden oak death in Oregon forests, 2001-2015. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 1 p.

Soil moisture and temperature conditions affect survival and sporulation capacity of Rhododendron leaf disks infested with Phytophthora ramorum - (Proceedings)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2017. Soil moisture and temperature conditions affect survival and sporulation capacity of Rhododendron leaf disks infested with Phytophthora ramorum. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 81 p.

Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries - (Proceedings)
Knaus, B.J., Graham, K.A., Grunwald, N.J., Fieland, V.J. 2017. Diversity of foliar Phytophthora species on Rhododendron in Oregon nurseries. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 76 p.

Incubation of Phytophthora ramorum-infested leaf debris in soil affects survival, sporulation capacity, and subsequent risk of epidemic development within nurseries - (Proceedings)
Peterson, E.K., Grunwald, N.J., Parke, J.L. 2017. Incubation of Phytophthora ramorum-infested leaf debris in soil affects survival, sporulation capacity, and subsequent risk of epidemic development within nurseries. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 48 p.

Analysis of populations of the sudden oak death pathogen in Oregon forests - (Proceedings)
Kamvar, Z.N., Hansen, E.M., Kanaskie, A.M., Larsen, M.M., Grunwald, N.J. 2017. Analysis of populations of the sudden oak death pathogen in Oregon forests. In: Proceedings of the Sudden Oak Death Sixth Science Symposium; 6/20/16-6/23/16; San Francisco, CA. Available: https://www.fs.fed.us/psw/publications/documents/psw_gtr255/psw_gtr255.pdf. 40 p.

What is a species? You be the judge - (Proceedings)
Brasier, C., Grunwald, N.J., Hansen, E., Resser, P., Sims, L., Sutton, W. 2015. What is a species? You be the judge. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 109 p.

Tools for rapid characterization of Phytophthora infestans and Phytophthora ramorum using real-time PCR and microsatellites from genomic resources - (Proceedings)
Bilodeau, G.J., Gagnon, M., Levesque, C.A., Kawchuk, L., Wijekoon, C.P., Feau, N., Bergeron, M., Grunwald, N.J., Brasier, C.M., Webber, J.F., Hamelin, R.C. 2015. Tools for rapid characterization of Phytophthora infestans and Phytophthora ramorum using real-time PCR and microsatellites from genomic resources. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 33 p.

Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program - (Proceedings)
Kanaskie, A., Goheen, E.M., Hansen, E., Reeser, P., Sutton, W., Grunwald, N.J., Rhatigan, R., Wiese, R., Laine, J. 2015. Sudden Oak Death in Oregon forests: Recent disease intensification and spread, and changes to the management program. In: Proceedings of the 7th meeting of the International Union of Forest Research Organization (IUFRO) Working Party S07.02.09: Phytophthoras in forests and natural ecosystems; 11/9/14-11/14/14; Esquel, Argentina. Available: http://forestphytophthoras.org/sites/default/files/proceedings/IUFRO_Proceedings_2014.pdf. 81p.