Faculty
Paul Koch

Paul Koch

Paul Koch

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Professor

Phone: 608-576-2673
E-mail: plkoch@wisc.edu

283 Russell Labs
1630 Linden Dr
Madison, WI 53706

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CV

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

  1. Chou, M-Y., Pavlou, D., Rice, P.J., Spokas, K.A., Soldat, D.J., Koch, P.L. 202X. Microbial diversity and soil health parameters associated with turfgrass landscapes. Applied Soil Ecology. Accepted pending revision on Dec 4, 2023.
  2. Hockemeyer, K., Gonzalez Vazquez, A., Koch, P.L. 202X. Persistence of fungicides applied to control snow mold of turfgrass as influenced by snow cover and antitranspirants. Plant Disease. Accepted pending revision on Nov 14, 2023.
  3. Bushman, B., Robbins, M., Qiu, Y., Watkins, E., Hollman, A., Mihelick, N., Petrella, D., Breullin-Sessoms, F., Chou, M-Y., Koch, P. 202X. Association of hard fescue (Festuca trachyphylla) stress tolerances with genome mapped markers. Crop Science. Accepted for publication on Dec 11, 2023. https://doi.org/10.1002/csc2.21155
  4. Koch, P.L., Chou, M.Y., Murphy, J., Genova, K., Hempfling, J., Clarke, B.B. 2023. Fine fescue species vary in their susceptibility to snow molds. Plant Health Progress. https://doi.org/10.1094/PHP-06-23-0056-RS
  5. Bekken, M. Soldat, D.J., Koch, P.L., Schimenti, C.S., Rossi, F.S., Aamlid, T.S., Hesselsoe, K.L., Petersen, T.K., Straw, C.M., Unruh, J.B., Kowalewski, A.R., Spring, C. 2023. Analyzing golf course pesticide risk across the US and Europe – the importance of regulatory environment. Science of the Total Environment 874: http://dx.doi.org/10.1016/j.scitotenv.2023.162498.
  6. White, A.M. Gonzalez Vazquez, A., McDaniel, E.A., Peterson, B.D., Koch, P.L., Remucal, C.K., McMahon, K.D. 2022. Expanded diversity of tfdA harboring bacteria across the natural and built environment. bioRxiv. doi: https://doi.org/10.1101/2022.09.28.509959
  7. Chou, M-Y., Clarke, B.B., Murphy, J.A., Zhang, N., Luo, J., Vines, P., Koch, P.L. 2022. Rapid detection of the recently identified turfgrass pathogen Magnaportheopsis meyeri-festucae using recombinase polymerase amplication. Plant Disease 106: 2441 – 2446. https://doi.org/10.1094/PDIS-08-21-1732-RE
  8. Bekken, M.A.H., Hockemeyer, K.R., Soldat, D.J., Koch, P.L. 2022. Reducing pesticide risk associated dollar spot management on golf course turfgrass. Front. Agron. 4:881591. https://doi.org/10.3389/fagro.2022.881591
  9. Gonzalez Vazquez, A.E., Hockemeyer, K.R., McConville, M., Remucal, C.K., Koch, P.L. 2022. Assessment of temperature and time following application as predictors of propiconazole translocation in Agrostis stolonifera. ACS Agric. Sci, Technol. 2022 2: 592 – 602. https://doi.org/10.1021/acsagscitech.2c00022
  10. 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
  11. 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
  12. 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
  13. Hockemeyer, K., Koch, P.L. 2021. Field evaluations and in vitro sensitivity of Microdochium nivale to succinate dehydrogenase (SDHI) fungicides. International Turfgrass Research Journal 14: 951-957. https://doi.org/10.1002/its2.48
  14. 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
  15. 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
  16. 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
  17. 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
  18. 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
  19. 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
  20. 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
  21. 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
  22. 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
  23. 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
  24. 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
  25. 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
  26. 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
  27. 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
  28. 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.
  29. Koch, P.L.   Optimal fungicide timing for suppression of Typhula blight under winter covers.  Agronomy Journal 108: 1-6. Doi: 10.2134/agronj2016.04.0241
  30. Koch, P.L., Stier, J. C., Kerns, J.P.   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
  31. Koch, P.L., Kerns, J.P.   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.
  32. Koch, P.L., Stier, J. C., Senseman, S. A., Sobek, S., Kerns, J.P.   Modification of commercially-available ELISA assays to determine chlorothalonil and iprodione concentrations on golf course turfgrass.  Crop Protection 54(12): 35-42.
  33. Koch, P.L., Kerns, J.P.   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.
  34. Koch, P.L., Kerns, J.P.   Relative resistance of creeping bentgrass cultivars to Sclerotinia homoeocarpa and Typhula incarnata.  Online.  Applied Turfgrass Science doi: 10.1094/ATS-2012-1022-01-RS. 
  35. Koch, P. L., Kerns, J. P., Stier, J. C.   Spring time fungicide applications delay and reduce dollar spot disease of turfgrass in Wisconsin.  International Turfgrass Society Research Journal 11(I): 241-252.
  36. Koch, P. L., Grau, C. G., Jo, Y. K., Jung, G.   Thiophanate-methyl and propiconazole sensitivity in Sclerotinia homoeocarpa populations from golf courses in Wisconsin and Massachusetts.  Plant Disease 93(1): 100-105.