Paul Koch
Associate Professor
Phone: 608-576-2673
E-mail: plkoch@wisc.edu
283 Russell Labs
1630 Linden Dr
Madison, WI 53706
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CV
Education
Doctor of Philosophy University of Wisconsin-Madison (August 2012) Major: Plant Pathology Minor: Molecular and Environmental Toxicology
Master of Science University of Wisconsin-Madison (May 2007) Major: Plant Pathology
Bachelor of Science University of Wisconsin-Madison (May 2005)
Research
Courses Taught
Publications
- Koch, P.L., Hockemeyer, K. 2021. Iron sulfate and phosphite products fail to suppress snow mold on amenity turfgrass in Wisconsin. Crop, Forage, and Turfgrass Management 7: e20138. https://doi.org/10.1002/cft2.20138
- Chou, M.-Y., Shrestha, S., Rioux, R.A., Koch, P.L. 2021. Hyperlocal variation in soil iron and the rhizosphere bacterial community determines dollar spot development in amenity turfgrass. Applied and Environmental Microbiology 87: e00149-21. https://doi.org/10.1128/AEM.00149-21
- Townsend, R.V., Millican, M.D., Smith, D., Nangle, E., Hockemeyer, K., Soldat, D., Koch, P.L. 2021. Dollar spot suppression on creeping bentgrass in response to repeated foliar nitrogen applications. Plant Disease 105: 276-284. org/10.1094/PDIS-05-20-1031-RE
- Hockemeyer, K., Koch, P.L. 2021. Field evaluations and in vitro sensitivity of Microdochium nivale to succinate dehydrogenase (SDHI) fungicides. International Turfgrass Research Journal. Early View. https://doi.org/10.1002/its2.48
- Rioux, R.A., Stephens, C.M., Koch, P.L., Kabbage, M., Kerns, J.P. 2020. Identification of a tractable model system and oxalic acid-dependent symptom development of the dollar spot pathogen Clarireedia jacksonii. Plant Pathology 70: 722-734. https://doi.org/10.1111/ppa.13319
- Koch, P.L., Hockemeyer, K., Buczkowski, E. 2020. Evaluating biological and oil-based fungicides for dollar spot suppression on turfgrass. Agronomy Journal 105: 3808-3818, https://doi.org/10.1002/agj2.20407
- Groben, G. Clarke, B.B., Murphy, J. Koch, P.L., Crouch, J., Lee, S., Zhang, N. 2020. Real-time PCR detection of Clarireedia, spp., the causal agents of dollar spot in turfgrasses. Plant Disease 104: 3118-3123. https://doi.org/10.1094/PDIS-04-20-0726-RE
- Braun, R.C., Patton, A.J., Watkins, E., Koch, PL., Anderson, N.P., Bonos, S.A., Brilman, L.A. 2020. Fine fescues: a review of the species, their improvement, production, establishment, and management. Crop Science 60: 1142-1187. https://doi.org/10.1002/csc2.20122
- Townsend, R.V., Rioux, R.A., Kabbage, M., Stephens, C., Kerns, J.P., Koch, P.L. 2020. Oxalic acid production in Clarireedia jacksonii is dictated by pH, host tissue, and xylan. Frontiers in Microbiology 11: 1732. https://doi.org/10.3389/fmicb.2020.01732
- Kabbage M., Piotrowski, J.S., Thill, E., Westrick, N.M., Ralph, J., Hockemeyer, K., Koch, P.L. 2020. Poacic acid suppresses dollar spot and snow mould in amenity turfgrass. Plant Pathology 69: 112-119. https://doi.org/10.1111/ppa.13099
- Hockemeyer, K., Koch, P.L. 2019. Alternative and low-use-rate herbicides offer similar levels of weed control to current standards in turfgrass lawns in the upper Midwest. Crop, Forage, and Turfgrass Management 5: 1-6. https://doi.org/10.2134/cftm2019.05.0042
- Kaminski, J.E., Russell, T., Koch, P.L. 2019. First report of Ophiosphaerella agrostidis infecting creeping bentgrass in Wisconsin. Plant Disease 103:2129. https://doi.org/10.1094/PDIS-02-19-0415-PDN
- Bier, P.V., Persche, M., Koch, P., Soldat, D.J. 2018. A long term evaluation of differential potassium fertilization of a creeping bentgrass putting green. Plant Soil 431: 303-316. https://doi.org/10.1007/s11104-018-3765-8
- Koch, P.L., Hugie, K., Watkins, E. 2018. Resistance of prairie junegrass and tufted harigrass germplasm to diseases common in temperate low-input turfgrass systems. Plant Health Progress 19: 310-318. org/10.1094/PHP-05-18-0022-RS
- Smith, D.L. and Kerns, J.P., Walker, N.R., Payne, A.F., Horvath, B., Inguagiato, J., Kaminski, J., Tomaso-Peterson, M., Koch, P.L. 2018. Development and validation of a weather-based warning system to advise fungicide application to control dollar spot on turfgrass. PLOS One. https://doi.org/10.1371/journal.pone.0194216
- Karakkat, B., Hockemeyer, K., Koch, P.L. 2018. Detection of root-infecting fungi on cool-season turfgrasses using loop-mediated isothermal amplification and recombinase polymerase amplification. J Microbiol Methods 151: 90-98. doi: 10.1016/j.mimet.2018.06.01
- Karakkat, B., Jackson, V., Koch, P.L. 2018. Incidence and distribution of Puccinia coronata and P. graminis on turfgrass in the Midwestern United States. Plant Disease 102(5): 955-963. org/10.1094/PDIS-09-17-1353-RE
- Koch, P.L., Soldat, D.J., Horgan, B.P., Bauer, S.J., Patton, A.J. 2017. The Great Lakes School of Turfgrass Science: A Nine-State Collaboration to Improve the Turfgrass Short Course. Journal of Extension 55(3): https://www.joe.org/joe/2017june/iw4.php
- Reedich, L.M., Millican, M.D., Koch, P.L. 2017. Temperature impacts on soil microbial communities and potential implications for the biodegradation of turfgrass pesticides. Journal of Environmental Quality 46(3): 490-497. doi: 10.2134/jeq2017.02.0067.
- Koch, P.L. 2016. Optimal fungicide timing for suppression of Typhula blight under winter covers. Agronomy Journal 108: 1-6. Doi: 10.2134/agronj2016.04.0241
- Koch, P.L., Stier, J. C., Kerns, J.P. 2015. Snow cover has variable effects on persistence of fungicides and their suppression of microdochium patch on amenity turfgrass. 2015. Plant Pathology. doi: 10.1111/ppa.12379
- Koch, P.L., Kerns, J.P. 2015. Temperature influences persistence of chlorothalonil and iprodione on creeping bentgrass foliage. Plant Health Progress. doi: 10.1094/PHP-RS-15-00012. Selected as an Editor’s Pick.
- Koch, P.L., Stier, J. C., Senseman, S. A., Sobek, S., Kerns, J.P. 2013. Modification of commercially-available ELISA assays to determine chlorothalonil and iprodione concentrations on golf course turfgrass. Crop Protection 54(12): 35-42.
- Koch, P.L., Kerns, J.P. 2012. Impact of novel fungicide timings on the development of snow mold and dollar spot on golf course turfgrass. International Turfgrass Research Society Journal 12: 97-101.
- Koch, P.L., Kerns, J.P. 2012. Relative resistance of creeping bentgrass cultivars to Sclerotinia homoeocarpa and Typhula incarnata. Applied Turfgrass Science doi: 10.1094/ATS-2012-1022-01-RS.
- Koch, P. L., Kerns, J. P., Stier, J. C. 2009. Spring time fungicide applications delay and reduce dollar spot disease of turfgrass in Wisconsin. International Turfgrass Society Research Journal 11(I): 241-252.
- Koch, P. L., Grau, C. G., Jo, Y. K., Jung, G. 2009. Thiophanate-methyl and propiconazole sensitivity in Sclerotinia homoeocarpa populations from golf courses in Wisconsin and Massachusetts. Plant Disease 93(1): 100-105.