Information for Nurseries
NORS-DUC Field Day 2024
NORS-DUC CDFA BMP Program
NORS-DUC CDFA Best Management Practices Manual
NORS-DUC Steaming-On-the-Go Program
NORS-DUC Plum Bud Gall Mite Host Range
NORS-DUC Flyer
Recent Articles
NORS-DUC Research Helping Strawberry Grower Reduce Plastic Waste
Publications
2024
Rebecca Harkness, Karen Suslow, Supriya Sharma, Monique L. Sakalidis, Timothy Miles and Wolfgang Schweigkofler. 2024.
2023
Tomas Pastalka, Nilwala Abeysekara and Wolfgang Schweigkofler. 2023.
2022
Raven Wienk, Marja Mostert-O’Neill, Nilwala Abeysekara, Patricia Manosalva, Barbie Freeman and Noëlani van den Berg. 2022.
Sharifa G. Crandall, Asha M. Miles, Taejung Chung, Mara L. Cloutier, Raymond Garcia-Rodriguez, Wolfgang Schweigkofler and Estelle Couradeau. 2022.
Wolfgang Schweigkofler and Vernon Huffman. 2022. Steaming is an Efficient Way to Treat Soil, Potting Mix, Pots, and Other Supplies Infested by Plant Pathogens. Ecesis 23: 7-9
Karen Suslow, Nilwala Abeysekara, Vernon Huffman and Wolfgang Schweigkofler. 2022. Surface and Irrigation Types Have a Big Impact on Water Splash in Nurseries, Choose Wisely! Ecesis 23: 2-5
Suzanne Rooney-Latham, Cheryl Linn Blomquist, Marinell C. Soriano and Tomas Pastalka. 2022.
Chuanxue Hong, Margery Louise Daughtrey, Matt Howle, Scott Schirmer, Kathleen Kosta, Ping Kong, T. Michaels Likins and Karen Suslow. 2022.
2021
Ebba Peterson, Niklaus J. Grünwald and Jennifer Parke. 2021. Phytopathology
Fumiaki Funahashi, David M. Myrold and Jennifer L. Parke. 2021. Soil Science Society of America Journal
Wolfgang Schweigkofler, Tomas Pastalka, Nilwala Abeysekara, Vernon Huffman and Karen Suslow. 2021. Plant Health Progress
Richard M. Bostock and Tatiana V Roubtsova. 2021. . The American Phytopathological Society — Plant Disease
Craig L. Ramsey, Paul C. Freebury, Debra H. Newman, Wolfgang Schweigkofler, Leland J. Cseke and Steven E. Newman. 2021. Use of Foliar Chemical Treatments to Induce Disease Resistance in Rhododendrons Inoculated with Phytophthora ramorum. Global Journal of Agricultural Innovation, Research & Development, 2021, 1-22.
Cai Hugo Thompson, Mitchell M. McCartney, Tatiana V. Roubtsova, Takao Kasuga, Susan E. Ebeler, Cristina Davis and Richard M. Bostock. 2021.
2020
Stephanie Kyne. 2020. , Montana State University, Bozeman MT
Fumiaki Funahashi and Jennifer L. Parke. 2020. . Journal of Environmental Horticulture 38: 158–167.
Marissa L. Layman, Craig Ramsey, Wolfgang Schweigkofler and Steven E. Newman. 2020. Field Evaluation of a Novel, Granular Soil Fumigant for Controlling Phytophthora ramorum in Field Nursery Soils. Global Journal of Agricultural Innovation, Research & Development 7,12-19
Doug Luster, Karen Suslow, Supriya Sharma, Wolfgang Schweigkofler and Vernon Huffman V. 2020. . In: Frankel, Susan J.; Alexander, Janice M., tech. cords. Proceedings of the seventh sudden oak death science and management symposium: healthy plants in a world with Phytophthora. Gen. Tech. Rep. PSW-GTR-268. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 83-90.
Matteo Garbelotto, Tina Popenuck, Brett Hall, Wolfgang Schweigkofler, Francesco Dovana, Ruby Goldstein De Salazar, Douglas Schmidt and Laura Sims. 2020. . Plant Disease.
Maria Socorro Serrano, Catherine Eyre and Matteo Garbelotto. 2020. . Plant Pathology 69, 320-333.
2018
Bassam A. Younis, Laura Mahoney, Wolfgang Schweigkofler and Karen Suslow. 2018. Inactivation of plant pathogens in irrigation water runoff using a novel UV disinfection system. European Journal of Plant Pathology 153, 907-914
Wolfgang Schweigkofler, Silvia Schmidt and Christian Roschatt . 2018. Integrated pest management strategies for phytoplasma diseases of woody crop plants: possibilities and limitations. In: Beck J.J., Rering C.C., Duke S.O. (eds.) Roles of Natural Products for Biorational Pesticides in Agriculture; ACS Symposium Series #1294, Washington D.C., pp. 69-82
Timothy L. Widmer, Sheila Johnson-Brousseau, Kathleen Kosta, Sibdas Ghosh, Wolfgang Schweigkofler, Supriya Sharma and Karen Suslow. 2018. Remediation of Phytophthora ramorum-infested soil with Trichoderma asperellum isolate 04-22 under ornamental nursery conditions. Biological Control 118, 67-73. (The results of this research project were presented for a broader readership as a blog in Science Trends.)
Fumiaki Funahashi and Jennifer L. Parke. 2018. Thermal inactivation of inoculum of two phytophthora species by intermittent versus constant heat. Phytopathology 108 (7): 829-836
2017
Tomas Pastalka, Suzanne Rooney-Latham, Kathleen Kosta , Karen Suslow, Vernon Huffman, Sibdas Ghosh and Wolfgang Schweigkofler. 2017. Monitoring using a sentinel plant system reveals very limited aerial spread of Phytophthora ramorum from infected ornamental plants in a quarantine research nursery. Plant Health Progress 18, 9-16
Suzanne Rooney-Latham, Cheryl L. Blomquist, Andrea Williams, Elliot Gunnison and Tomas Pastalka 2017. Proceedings of the Sudden Oak Death sixth science symposium. Gen. Tech. Rep. GTR-PSW-255. Albany, CA: U.S. Department of Agriculture, Forest Service, Pacific Southwest Research Station: 83-84.
2016
Karen Suslow and Kathy Kosta. 2016. Solarization: a simple and low-cost method for disinfesting horticultural containers. Ecesis 26, 4-7.
Takao Kasuga, Mai Bui, Elizabeth Bernhardt, Tedmund Swiecki, Kamyar Aram, Liliana M. Cano, Joan Webber, Clive Brasier, Caroline Press, Niklaus J. Grünwald, David M. Rizzo and Matteo Garbelotto 2016. Host-induced aneuploidy and phenotypic diversification in the sudden oak death pathogen Phytophthora ramorum. BMC Genomics 17:385
Fumiaki Funahashi and Jennifer L. Parke. 2016. Effects of soil solarization and Trichoderma asperellum on soilborne inoculum of Phytophthora ramorum and Phytophthora pini in container nurseries. Plant Disease 100:1-6
2015
Lucy Rollins, Marianne Elliott and Gary Chastagner. 2015. A new method to apply Phytophthora ramorum inoculum to hosts that simulates overhead irrigation. Plant Health Progress doi:10.1094/PHP-RS-15-0008
Sacy Ditta and Adam Santiago. 2015. Molecular Analysis and Thermal Treatment of Several Phytophthora Species Causing Diseases of Ornamental Plants in California. Proceedings of The National Conference On Undergraduate Research (NCUR), Eastern Washington University, Cheney, Wash.
2014
Wolfgang Schweigkofler, Kathleen Kosta, Vernon Huffman, Supriya Sharma, Karen Suslow and Sibdas Ghosh. 2014. Steaming inactivates Phytophthora ramorum, causal agent of sudden oak death and ramorum blight, from infested nursery soils in California. Plant Health Progress doi:10.1094/PHp-RS-13-0111
2012
Wolfgang Schweigkofler, Kathleen Kosta, Vernon Huffman, Tomas Pastalka, Glenn Copeland, Karen Suslow, Aurelio Posadas, Russ Bulluck and Sibdas Ghosh. 2012. Disease Management of Phytophthora ramorum in a Research Quarantine Nursery at NORS-DUC. Phytophthora in Forests and Natural Ecosystems, Proceedings of the 6th Meeting of the International Union of Forest Research Organizations (IUFRO) Working Party S07-02-09, 127-129
2011
Sheila Johnson-Brousseau, Michael Henkes, Kathleen Kosta, Karen Suslow, Aurelio Posadas and Sibdas Ghosh. 2011. Phytophthora ramorum research at the National Ornamentals Research Site at the Ó£ÌÒÊÓƵ of California. New Zealand Journal of Forestry Science 41S, 101-113