Claudia Nischwitz
Biology Dept
Plant Pathology Specialist
Contact Information
Office Location: Logan Campus | LSB 330Phone: (435) 797-7569
Email: claudia.nischwitz@usu.edu
Additional Information:
Educational Background
Biography
Positions held: 2010 - Assistant professor and Extension plant pathologist 2008 - 2010 Post-Doc, University of Arizona 2005-2008 Post-Doc, University of Georgia Education: 2001 – 2005 Ph.D. University of Idaho Major: Natural Resources 1999 – 2001 M.S. The University of Arizona Major: Plant pathology 1993 – 1998 Diplom-Agraringenieur (FH) Fachhochschule Osnabrueck, Germany, Major: Horticulture
Research Interests
My research and extension interests are focused on biological, cultural and chemical control of plant pathogens, disease management, biology, etiology and epidemiology of fungal plant pathogens, bacteria, nematodes and viruses. I am also interested in the development of diagnostic tools and conducting phylogenetic analyses to determine geographic origin of new pathogens.
Awards
Utah State University Extension Outstanding New Extension Specialist Award, 2015
USU Extension
APS Pacific Division Early Career Award, 2014
American Phytopathological Society Pacific Division
UGA – Tifton Campus Gary A. Herzog Award of Excellence for Junior Scientist - Research, 2008
Publications | Abstracts
- Nischwitz, C., Dhiman, C., Survey of Erwinia amylovora, causal agent of fire blight, from apple and. Phytopathology
- Stock, M., Oliver, E., Wagner, K.M, Nischwitz, C., (2022). Improving Dahlia Production in Northern Utah through Nutrient and Temperature Management.. American Society for Horticultural Science
- Nischwitz, C., Schmitt, M., Skantar, A., Bunderson, T., McClure, M.A, (2011). Root-knot nematode species in golf course greens in the Western U.S.A.. Phytopathology
- Nischwitz, C., Olsen, M., (2011). Susceptibility of mesquite species to powdery mildew in Arizona. Phytopathology
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Books
- Murray, M., Nischwitz, C., (2022). Abiotic Disorders of Tomato. Utah State University *
- Steinitz, T., Wagner, K.M, Drost, D.T, Alston, D.G, Hunter, B., Nischwitz, C., Ramirez, R., Allen, L., Barnhill, J.V, Frame, D., Pace, M., Durward, C., Reeve, J., Jewkes, M., Heflebower, R.F, (2014). A Guide to Common Organic Gardening Questions. USU Extension *
- Beddes, T., Drost, D.T, Alston, D.G, Nischwitz, C., Bunn, B., (2014). Sweet Corn Production: Utah Vegetable Production and Pest Management Guide. Utah State University
Publications | Book Chapters
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Fact Sheets
- Nischwitz, C., Dhiman, C., Streptomycin resistance of Erwinia amylovora, causal. USU Extension *
- Stock, M., Pratt, A., Nischwitz, C., Oliver, E., Wagner, K.M, Volesky, N., (2023). Dahlia Cut Flower Production in Utah. USU Extension
- Clawson, J., Nischwitz, C., (2023). Dwarf Bunt in Winter Wheat.
- Gleeson, S., Stock, M., Nischwitz, C., (2022). Dahlia mosaic virus on dahlia. USU Extension
- Caron, M., Davis, R., Hansen, S., Beddes, T., , Alston, D.G, Nischwitz, C., (2018). Redberry Mite on Blackberry. Utah State University Fact Sheet *
- Nischwitz, C., Holmgren, L.N, (2016). Barley yellow dwarf virus. Utah State University Extension *
- Nischwitz, C., Olsen, S.H, Patterson, R., (2015). Zebra chip disease of potato. USU Extension *
- Nischwitz, C., (2015). Candidatus Liberibacter of pepper . *
- Nischwitz, C., Kopp, K., Gunnell, J., (2013). Necrotic Ring Spot and Summer Patch of Turfgrass.
- Nischwitz, C., Dhiman, C., Drost, D.T, (2013). Botrytis Neck Rot of Onion. USU Cooperative Extension
- Nischwitz, C., Dhiman, C., (2012). Pink root disease of onion. USU Extension *
- Baker, F.A, Alston, D.G, Nischwitz, C., (2012). Important Pests of Ornamental Aspen. Utah State University Cooperative Extension *
- Nischwitz, C., Black, B.L, Pace, M., (2011). Peach leaf curl disease. USU Extension *
- Nischwitz, C., Murray, M., (2011). Thousand Cankers Disease of Walnut (Geosmithia morbida). USU Extension
- Nischwitz, C., (2011). Fuego bacteriano del manzano y el peral (Erwinia amylovora). USU extension *
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Journal Articles
Academic Journal
- Frantz, R., Compton, T., Nischwitz, C., Gordillo, L.F, (2023). Modeling the Spread of Curly Top Disease in Tomato Crops. Letters in Biomathematics
- Zahniser, J., Henry, T., Schumm, Z., Spears, L., Nischwitz, C., Scow, B., Volesky, N., (2022). Centrocoris volxemi (Puton) (Hemiptera: Heteroptera: Coreidae), first records for North America and second species of the genus established in the United States. Proceedings of the Entomological Society of Washington
- Buckland, K., Alston, D.G, Reeve, J., Nischwitz, C., Drost, D.T, (2017). Trap Crops in Onion to Reduce Onion Thrips and Iris Yellow Spot Virus. Southwestern Entomologist, 42:1, 73-90. doi: http://dx.doi.org/10.3958/059.042.0108
- Scott, J., Nischwitz, C., Ramirez, R., Gordillo, L.G, (2017). Managing the spread of alfalfa stem nematode:the relationship between crop rotation periods and pest re-emergence. Natural Resource Modeling
- Kawasaki, Y., Nischwitz, C., Grilley, M.M, Jones, J., Takemoto, J.Y, (2016). Production and application of syringomycin E as an organic fungicide seed protectant against pythium damping-off. Journal of Phytopathology, 164:10, 801–810.
- Nischwitz, C., Skantar, A., Handoo, Z., Hult, M., Schmitt, M., McClure, M., (2013). Occurrence of <i>Meloidogyne fallax</i> in North America, and molecular characterization of M. fallax and M. minor from U.S. golf course greens. Plant Disease, 97, 1424-1430.
- Nischwitz, C., (2013). Redescription of Robustodorus megadorus with Molecular. Journal of nematology, 45, 237-252.
- Nischwitz, C., Dhiman, C., (2013). Streptomycin resistance of Erwinia amylovora isolated from apple (Malus domesticus) in Utah . Plant Health Progress
- Nischwitz, C., Srinivasan, B., Sundaraj, S., Mullis, S., McInnes, B., Gitaitis, R., (2012). Geographical Distribution and Survival of Iris yellow spot virus in Spiny Sowthistle, Sonchus asper, in Georgia. Plant Disease, 96:8, 1165-1171.
- McClure, M.A, Nischwitz, C., Skantar, A., Subbotin, S.A, Schmitt, M.E, (2012). Root-knot Nematodes in Golf Course Greens of the Western United States. Plant Disease, 96, 635-647.
- Gitaitis, R., Mullis, S., Lewis, K., Langston, D., Watson, A., Sanders, H., Torrance, R., Jones, J., Nischwitz, C., (2012). First Report Of A New Disease Of Onion In Georgia Caused. Plant Disease, 96, 285.
- Nischwitz, C., Srinivasan, R., Sundaraj, S., Mullis, S., McInnes, B., Gitaitis, R., Geographical distribution and survival of Iris yellow spot virus in spiny sowthistle, Sonchus asper (L.) Hill in Georgia, USA . Plant Disease
- Seyran, M., Nischwitz, C., Lewis, K.J, Gitaitis, R.D, Brenneman, T.B, Stevenson, K.L, (2009). Phylogeny of the pecan scab fungus Fusicladium effusum G. Winter based on the cytochrome b gene sequence. Mycological Progress
Public or Trade Journal
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | MultiMedia
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.
Publications | Other
Bulletins
- Johnson, M.S, Nischwitz, C., (2014). Damping-off.
- Alston, D.G, Murray, M., Nischwitz, C., (2012). Utah Home Orchard Pest Management Guide. USU Cooperative Extension *
- Davis, R., Kuhns, M.R, Nischwitz, C., (2011). Spruce Health in Utah Landscapes. USU Extension
Newsletter
- Nischwitz, C., Stock, M., (2022). New diseases detected on Utah cut flowers. Utah Pests Quarterly Newsletter, Utah Plant Pest Diagnostic Laboratory & USU Extension *
- Compton, T., Nischwitz, C., Stock, M., (2020). Dahlia mosaic virus (DMV) on dahlia in Utah. Utah Pests News *
- Nischwitz, C., (2017). Ergot in grasses and small grains. Utah Plant Pest Diagnostic lab *
- Nischwitz, C., (2016). High Plains virus and wheat streak mosaic virus in small grainstha . Utah Plant Pest Diagnostic lab *
- Nischwitz, C., (2016). Leaf mold of tomato common in spring 2016. Utah Plant Pest Diagnostic lab *
- Nischwitz, C., (2016). Discarded store-bought produce could be path of new plant disease introductions. *
- Nischwitz, C., (2014). Bacterial spot of pepper. USU Extension *
- Alston, D.G, Nischwitz, C., Petrizzo, E., (2012). Insect vectors of vegetable virus diseases. Utah State University Extension *
Other
- Stock, M., Nischwitz, C., (2021). Tackling the three challenges of dahlia production: bloom timing, nutrient management, and disease.. The Cut Flower Quarterly/Association of Specialty Cut Flower Growers *
An asterisk (*) at the end of a publication indicates that it has not been peer-reviewed.