Damon L. Smith, Ph.D.

Associate Professor and Extension Specialist

495 Russell Labs
1630 Linden Dr.
Madison, WI 53706

Twitter:  @badgercropdoc
Background

I am a native of the Finger Lakes Region of Western New York State.  After graduating from the State University of New York (SUNY) College at Geneseo with a B.S. in biology in 2001 I moved to North Carolina.  At NC State University I earned my M.S. degree in plant pathology in 2004.  My thesis was titled “Biology and Epidemiology of Sclerotinia minor on Peanut (Arachis hypogaea L.).”  I continued on with my doctoral research at NC State University and earned my Ph.D. in plant pathology in 2007.  My dissertation title was “Improved Strategies for Controlling Sclerotinia blight of Peanut: Site-specific Disease Models and Advisory, Fungicide timing, and Pathogen Detection.”  I then moved to Oklahoma State University where I was an assistant professor of plant pathology and horticulture extension pathologist in the Department of Entomology and Plant Pathology from 2007-2012.  I conducted research on diseases of turfgrass, grapes, and pecans.  I joined the faculty of the Department of Plant Pathology at The University of Wisconsin-Madison in September 2012.  I was promoted to associate professor and extension plant pathologist in July 2018. I have research and management responsibilities for diseases of field crops including soybean, corn, wheat, and alfalfa.

Please contact me anytime at damon.smith@wisc.edu.

Education

Ph.D., 2007, North Carolina State University – Plant Pathology

M.S., 2004, North Carolina State University – Plant Pathology

B.S., 2001, State University of New York (SUNY) Geneseo – Biology

Research

My overall research goal is to better understand the biology and epidemiology of economically important pathogens to improve disease management for sustainable food and feed production. This research is translated for the consumer and delivered through the extension arm of my program not only in Wisconsin, but also regionally, nationally and internationally. Our research influences the major agronomic commodities (corn, soybean, small grains, and alfalfa), affecting over 10 million acres of harvested crops in Wisconsin each year. These crops provided over $2.2 billion in cash receipts or about 20% of Wisconsin’s farm gate income in 2015.

Extension

My extension efforts focus on generating, evaluating, and disseminating solutions to many of the disease problems associated with field crops such as soybeans, corn, wheat and alfalfa. Information and potential solutions to disease problems are evaluated using applied research. Field studies include station and on-farm research to test epidemiological models, conduct pesticide evaluations, and improve the practical and biological understanding of various plant pathogens. I work closely with county extension agents, crop advisors, agribusinesses, and commodity groups to improve the management of the major diseases affecting field crops. I am responsible for developing disease management fact sheets, outreach courses, and electronic education resources.

Refereed Publications

*Names underlined below indicate undergraduate or graduate students advised by Dr. Smith

  1. Willbur, J.F.,Fall, M.L., Byrne, A.M., Chapman, S.A., McCaghey, M.M., Mueller, B.D., Schmidt, R., Chilvers, M.I., Mueller, D.S., Kabbage, M., Giesler, L.J., Conley, S.P., and Smith, D.L. 2018. Validating Sclerotinia sclerotiorumapothecial models to predict Sclerotinia stem rot in soybean (Glycine max) fields. Plant Disease. https://doi.org/10.1094/PDIS-02-18-0245-RE.
  2. Fall, M., Willbur, J., Smith, D.L., Byrne, A., and Chilvers, M. 2018. Spatiotemporal distribution pattern of Sclerotinia sclerotiorum apothecia is modulated by canopy closure and soil temperature in an irrigated soybean field. Phytopathology. https://doi.org/10.1094/PDIS-11-17-1821-RE.
  3. McCoy, A.G., Romberg, M.K., Zaworski, E., Robertson, A.E., Phibbs, A., Hudelson, B., Smith, D.L., Beiriger, R., Raid, R., Byrne, J., and Chilvers, M. I. 2018. First report of tar spot on corn (Zea mays) caused by Phyllachora maydis in Florida, Iowa, Michigan, and Wisconsin. Plant Disease. https://doi.org/10.1094/PDIS-02-18-0271-PDN.
  4. Marburger, D.A., Willbur, J.F., Weber, M.E., Ané, J-M., Kabbage, M., Conley, S.P., and Smith, D.L. 2018. Characterizing the effect of foliar lipo-chitooligosaccharide application on sudden death syndrome and Sclerotinia stem rot in soybean. Plant Health Progress. https://doi.org/10.1094/PHP-10-17-0058-RS.
  5. Fall, M.L., Boyse, J.F., Wang, D., Willbur, J.F., Smith, D.L., and Chilvers, M.I. 2018. Case Study of an epidemiological approach dissecting historical soybean Sclerotinia stem rot observations and identifying environmental predictors of epidemics and yield loss. Phytopathology. https://doi.org/10.1094/PHYTO-12-16-0446-R.
  6. Mueller, B.D., Groves, C.L., Holtz, D.Deutsch, A., and Smith, D.L. 2018. First report of Fusarium culmorumcausing Fusarium head blight of wheat in Wisconsin. Plant Disease. https://doi.org/10.1094/PDIS-08-17-1220-PDN.
  7. Smith, D.L.and Kerns, J.P., Walker, N.R., Payne, A.F., Horvath, B., Inguatiato, J.C., Kaminski, J.E., Tomaso-Peterson, M., and Koch, P.L. 2018. Development and validation of logistic regression models for the prediction of dollar spot epidemics on turfgrass. PLoS One 13(3):e0194216. https://doi.org/10.3.1371/journal.pone.0194216.
  8. Willbur, J.F., Fall, M.L., Blackwell, T., Bloomingdale, C.A., Byrne, A.M., Chapman, S.A., Holtz, D., Isard, S.A., Magarey, R.D., McCaghey, M., Mueller, B.D., Russo, J.M., Schlegel, J., Young, M., Chilvers, M.I., Mueller, D.S., and Smith, D.L. 2018. Weather-based models for assessing the risk of Sclerotinia sclerotiorum apothecial presence in soybean (Glycine max) fields. Plant Disease.DOI:10.1094/PDIS-04-17-0504-RE
  9. Marburger, D.A., Smith, D.L., and Conley, S.P. 2017. Impact of Fusarium graminearumon early-season soybean growth and seed yield under field conditions. Canadian Journal of Plant Pathology. DOI:10.1080/07060661.2017.1378727.
  10. McCaghey, M. and Willbur, J., Ranjan, A., Grau, C., Chapman, S., Diers, B., Groves, C., Kabbage, M., and Smith, D.L. Development and evaluation of Glycine maxgermplasm lines with quantitative resistance to Sclerotinia sclerotiorum. Frontiers in Plant Science. DOI:10.3389/fpls.2017.01495.
  11. Allen, T.W., Bradley, C.A., Sisson, A.J., Byamukama, E., Chilvers, M.I., Coker, C.M., Collins, A.A., Damicone, J.P., Dorrance, A.E., Dufault, N.S., Esker, P.D., Faske, T.R., Giesler, L.J., Grybauskas, A.P., Hershman, D.E., Hollier, C.A., Isakeit, T., Jardine, D.J., Kemerait, R.C., Kleczewski, N.M., Koenning, S.R., Kurle, J.E., Malvick, D.K., Markell S.G., Mehl, H.L., Mueller, D.S., Mueller, J.D., Mulrooney, R.P., Nelson, B.D., Newman, M.A., Osborne, L., Overstreet, C., Padgett G.B., Phipps, P.M., Price, P.P, Sikora, E.J., Smith, D.L., Spurlock, T.N., Tande, C.A., Tenuta, A.U., Wise, K., Wrather, J.A., Young-Kelly, H. 2017. Soybean yield loss estimates due to disease in the United States and Ontario, Canada, from 2010 to 2014. Plant Health Progress 18:19-27.
  12. Vosberg, S.K., Marburger, D.A.,Smith, D.L., and Conley, S.P. 2017. Planting date and fluopyram seed treatment effect on soybean sudden death syndrome and seed yield. Agronomy Journal. DOI:10.2134/agronj2017.04.0232.
  13. Anderson, N.R., Irrizarry, M.D., Bloomingdale, C.A., Smith, D.L., Bradley, C.A., Delaney, D.P., Kleczewski, N.M., Sikora, E.J., Mueller, D.S., and Wise, K.A. 2017. Effect of soybean vein necrosis on yield and seed quality of soybean. Canadian Journal of Plant Pathology. DOI:10.1080/07060661.2017.1354333.
  14. Moellers, T.C., Singh, A., Zhang, J., Brungardt, J., Kabbage, M., Mueller, D.S., Grau, S.R., Ranjan, A.,Smith, D.L., Chowda-Reddy, R.V., and Singh, A.K. 2017. Main and epistatic loci studies in soybean for Sclerotinia sclerotiorum resistance reveal multiple modes of resistance in multi-environments. Nature Scientific Reports. DOI:10.1038/s41598-017-03695-9.
  15. Ranjan, A., Jayaraman, D., Grau, C., Hill, J., Whitham, S., Ané, J., Smith, D., Kabbage, M. 2017. The pathogenic development of Sclerotinia sclerotiorumin soybean requires specific host NADPH oxidases. Molecular Plant Pathology DOI:10.1111/mpp.12555.
  16. Rojas, J.A., Jacobs, J., Napieralski, S., Karaj, B., Bradley, C.A., Chase, T., Esker, P., Giesler, L., Jardine, D., Malvick, D., Markell, S., Nelson, B., Robertson, A., Rupe, J., Smith, D., Sweets, L., Tenuta, A., Wise, K., and Chilvers, M. 2017. Oomycete species associated with soybean seedlings in North America – Part I: Identification and pathogenicity characterization. Phytopathology 107:280-292.
  17. Rojas, J.A., Jacobs, J., Napieralski, S., Karaj, B., Bradley, C.A., Chase, T., Esker, P., Giesler, L., Jardine, D., Malvick, D., Markell, S., Nelson, B., Robertson, A., Rupe, J., Smith, D., Sweets, L., Tenuta, A., Wise, K., and Chilvers, M. 2017. Oomycete species associated with soybean seedlings in North America – Part II: Diversity and ecology in relation to environmental and edaphic factors. Phytopathology. 107:293-304.
  18. Willbur, J. F., Ding, S., Marks, M. E., Lucas, H., Grau, C. R., Groves, C. L., Kabbage, M., and Smith, D. L. 2017. Comprehensive Sclerotinia stem rot screening of soybean germplasm requires multiple isolates of Sclerotinia sclerotiorum. Plant Disease 101:344-353.
  19. Bloomingdale, C., Irrizarry, M.D., Groves, R.L., Mueller, D.S., and Smith, D.L. 2017. Seasonal population dynamics of thrips (Thysanoptera) in Wisconsin and Iowa soybean fields. Journal of Economic Entomology.doi:10.1093/jee/tow242.
  20. Baturo-Ciesniewska, A., Groves, C.L., Albrecht, K.A., Grau, C.R., Willis, D.K., and Smith, D.L. 2017. Molecular identification of Sclerotinia trifoliorumand Sclerotinia sclerotiorum isolates from the United States and Poland. Plant Disease 101:192-199.
  21. Marburger, D.A., Smith, D.L., and Conley, S.P. 2016. Revisiting planting date and cultivar effects on soybean sudden death syndrome. Plant Disease 100:2152-2157.
  22. Groves C., German T., Dasgupta R., Mueller D., Smith D.L. 2016. Seed transmission of soybean vein necrosis virus: The first Tospovirus implicated in seed transmission. PLoS ONE 11(1): e0147342. doi:10.1371/journal.pone.0147342.
  23. Mueller, D., Wise, K.A., Sisson, A.J., Allen, T.A., Bergstrom, G.C., Bosley, D.B., Bradley, C.A., Broders, K.D., Byamukama, E., Chilvers, M.I., Collins, A., Faske, T.R., Friskop, A.J., Heiniger, R.W., Hollier, C.A., Hooker, D.C., Isakeit, T., Jackson-Ziems, T.A., Jardine, D.J., Kelly, H.M., Kinzer, K., Koenning, S.R., Malvick, D.K., McMullen, M., Meyer, R.F., Paul, P.A., Robertson, A.E., Roth, G.W., Smith, D.L., Tande, C.A., Tenuta, A.U., Vincelli, P., and Warner, F. 2016. Corn yield loss estimates due to diseases in the United States and Ontario, Canada from 2012 to 2015. Plant Heath Progress. 17:211-222.
  24. Smith, D.L. 2016. Response to “On seed transmissibility of Soybean vein necrosis-associated virus in symptomless soybean seedlings.” Plant Health Progress 17:185.
  25. Irizarry, M. D., Groves, C. L., Elmore, M. G., Bradley, C. A., Dasgupta, R., German, T. L., Jardine, D. J., Saalau Rojas, E., Smith, D. L., Tenuta, A. U., Whitham, S. A., and Mueller, D. S. 2016. Re-emergence of Tobacco streak virus infecting soybean in the United States and Canada. Plant Health Progress 17:92-94.
  26. Stafne, E.T., Carroll, B., and Smith, D. 2015. Black rot control and bud cold hardiness of ‘Noiret’ winegrape. Journal of Applied Horticulture 17:106-108.
  27. Piotrowski, J., Okada, H., Lu, F., Li, S., Ranjan, A., Smith, D., Higbee, A., Ulbrich, A. Coon, J., Deshpande, R., Bukhman, Y., McIIwain, S., Ong, I., Myers, C. Boone, C., Landick, R., Ralph, J., Kabbage, M., Ohaya, Y. 2015. The plant derived, antifungal agent poacic acid targets β-1,3-glucan. Proceedings of the National Academy of Sciences of the USA pnas.org/cgi/doi/10.1073/pnas.1410400112.
  28. Kandel Y. R., Bradley, C. A., Wise, K. A., Chilvers, M. I., Tenuta, A. U., Davis, V. M., Esker, P. D., Smith D. L., Licht M. A. and Mueller, D. S. Effect of glyphosate application on sudden death syndrome of glyphosate-resistant soybean under different field conditions. Plant Disease 99:347-354.
  29. Marburger, D., Conley, S.P., Esker, P., MacGuidwin, A., and Smith, D.L. Relationship between Fusarium virguliformeand Heterodera glycinesin commercial soybean (Glycine max) Fields in Wisconsin. Plant Health Progress doi: 10.1094/PHP-RS-13-0107.
  30. Rioux, R.A., Shultz, J., Garcia, M., Willis, D.K., Casler, M., Bonos, S., Smith, D.L., Kerns, J.P. 2014. Sclerotinia homoeocarpa overwinters in turfgrass and is present in commercial seed. PLoS ONE 9(10):e110897.
  31. Smith, D.L. and Walker, N.R. Fungicide management of brown patch of tall turf-type fescue in the residential landscape in Oklahoma.  Online. Plant Health Progress doi:10.1094/PHP-2013-1022-01-RS.
  32. Smith, D.L. Fritz, C., Watson, Q., Willis, D.K., German, T.L., Phibbs, A., Mueller, D., Dittman, D., Saalau-Rojas, E., Whitham, S.A. First report of Soybean vein necrosis disease caused by Soybean vein necrosis-associated virus in Wisconsin and Iowa. Plant Disease97:693.
  33. Abd-Elmagid, A., Garrido, P.A., Hunger, R., Lyles, J.L., Mansfield, M.A., Gugino, B.K., Smith, D.L., Melouk, H.A., Garzon, C.D. Discriminatory simplex and multiplex PCR for four species of the genus Sclerotinia. Journal of Microbiological Methodsdoi: 10.1016/j.mimet.2012.12.020.
  34. Kennelly, M., O’Mara, J., Rivard, C., Miller, G.L., and Smith, D.L. 2012. Introduction to abiotic disorders in plants. The Plant Health Instructor. DOI: 10.1094/PHI-I-2012-10-29-01.
  35. Payne, A.F.and Smith, D.L. Development and evaluation of two pecan scab prediction models. Plant Disease 96:117-123.
  36. Damicone, J.D., Holbrook, C.C.,Smith, D.L., Melouk, H.A., and Chenault, K.D. Reaction of the core collection of peanut germplasm to Sclerotinia blight and pepper spot.  Peanut Science37:1-11.
  37. Smith, D.L., Dominiak-Olson, J., Sharber, C.D. First report of Pierce’s disease of grape caused by Xylella fastidiosain Oklahoma.  Plant Disease 93:762.
  38. Walker, N.R., Marek, S.M., and Smith, D.L. Fungal biodiversity in bermudagrass (Cynodon dactylon x Transvaalensis) inoculated with Ophiosphaerella herpotricha or Gaeumannomyces graminis var. graminis.International Journal of Turfgrass Research 11:283-292.
  39. Smith, D.L.,Garrison, M.C., Hollowell, J.E., Isleib, T.G., and Shew, B.B. Evaluation of application timing and efficacy of the fungicides fluazinam and boscalid for control of Sclerotinia blight of peanut.  Crop Protection 27:823-833.
  40. Smith, D.L., Hollowell, J.E., Isleib, T.G., and Shew, B.B. 2007. A site-specific, weather-based disease regression model for Sclerotinia blight of peanut.Plant Disease 91:1436-1444.
  41. Smith, D.L.,Hollowell, J.E., Isleib, T.G., and Shew, B.B. 2006. Analysis of factors that influence the epidemiology of Sclerotinia minor on peanut. Plant Disease 90:1425-1432.
  42. Isleib, T.G., Rice, P.W., Mozingo, R.W., Copeland, S.C., Graeber, J.B., Shew, B.B., Smith, D.L., Melouk, H., and Stalker, H.T. 2006. Registration of N96076L peanut germplasm.Crop Science 46:2329-2330.

Peer-reviewed Technical Reports:

  1. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2018. Evaluation of foliar fungicide seed treatments for control of Sclerotinia stem rot of soybean in Hancock Wisconsin, 2017. Plant Disease Management Reports 12:CF029.
  2. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2018. Evaluation of foliar fungicide seed treatments for control of Sclerotinia stem rot of soybean in Hancock Wisconsin, 2017. Plant Disease Management Reports 12:CF030.
  3. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2018. Evaluation of foliar fungicide seed treatments for control of Sclerotinia stem rot of soybean in Hancock Wisconsin, 2017. Plant Disease Management Reports 12:CF057.
  4. Mueller, B., Smith, D.L., and Chapman, S. 2018. Evaluation of foliar fungicides for control of Septoria brown spot on soybean in Wisconsin, 2017. Plant Disease Management Reports 12:CF058.
  5. Mueller, B., Smith, D.L., and Chapman, S. 2018. Evaluation of foliar fungicides for control of foliar diseases of wheat in Wisconsin, 2017. Plant Disease Management Reports 12:CF081.
  6. Mueller, B., Smith, D.L., Jensen, B., and Chapman, S. 2018. Evaluation of foliar fungicides for control of common rust of sweet corn in Wisconsin, 2017. Plant Disease Management Reports 12:V042.
  7. Mueller, B., Smith, D.L., and Chapman, S. 2018. Evaluation of foliar fungicides for control of diseases of corn for silage in Wisconsin, 2017. Plant Disease Management Reports 12:V043.
  8. Mueller, B., Smith, D.L., and Chapman, S. 2018. Evaluation of foliar fungicides for control of diseases of dent corn in Wisconsin, 2017. Plant Disease Management Reports 12:V044.
  9. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2017. Evaluation of foliar fungicide for control of foliar diseases on soybean in Wisconsin, 2016. Plant Disease Management Reports 11:CF050.
  10. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2017. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2016. Plant Disease Management Reports 11:CF049.
  11. Mueller, B., Smith, D.L., and Chapman, S. 2017. Evaluation of herbicides for control of Sclerotinia stem rot in soybean in Hancock, Wisconsin, 2016. Plant Disease Management Reports 11:CF048.
  12. Mueller, B., Smith, D.L.,and Chapman, S. 2017. Evaluation of foliar fungicides for control of foliar diseases of alfalfa in Wisconsin, 2016. Plant Disease Management Reports 11:CF032.
  13. Mueller, B., Smith, D.L., and Chapman, S. 2017. Evaluation of foliar fungicides for control of leaf rust of wheat in Wisconsin, 2016. Plant Disease Management Reports 11:CF031.
  14. Mueller, B., Smith, D.L., and Chapman, S. 2017. Evaluation of foliar fungicides for control of diseases of dent corn in Wisconsin, 2016. Plant Disease Management Reports 11:CF013.
  15. Mueller, B., Smith, D.L., and Chapman, S. 2017. Evaluation of foliar fungicides for control of foliar diseases of sweet corn in Wisconsin, 2016. Plant Disease Management Reports 11:V087.
  16. Mueller, B., Smith, D.L., Bloomingdale, C., and Chapman, S. 2016. Evaluation of fungicides for control of foliar diseases of alfalfa in Wisconsin, 2015. Plant Disease Management Reports 10:CF025.
  17. Mueller, B., Smith, D.L., and Chapman, S. 2016. Evaluation of fungicides for control of diseases of dent corn in Wisconsin, 2015. Plant Disease Management Reports 10:FC053.
  18. Mueller, B., Smith, D.L., and Chapman, S. 2016. Evaluation of fungicides for control of brown spot and brown stem rot of soybean in Wisconsin, 2015. Plant Disease Management Reports 10:FC052.
  19. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2016. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Hancock, Wisconsin, 2015. Plant Disease Management Reports 10:FC051.
  20. Mueller, B., Smith, D.L., Willbur, J., and Chapman, S. 2016. Evaluation of foliar fungicide treatments for control of Sclerotinia stem rot of soybean in Arlington, Wisconsin, 2015. Plant Disease Management Reports 10:FC050.
  21. Mueller, B., Smith, D.L., and Chapman, S. 2016. Evaluation of fungicides for control of northern corn leaf blight of sweet corn in Wisconsin, 2015. Plant Disease Management Reports 10:V047.
  22. Mueller, B., Smith, D.L., Chapman, S., and Bloomingdale, C. 2016. Evaluation of foliar fungicides for control of Fusarium head blight of wheat in Wisconsin, 2015. Plant Disease Management Reports 10:CF024.
  23. Smith, D.L., Chapman, S., and Jensen, B. 2015. Evaluation of fungicide seed treatments for control of Aphanomyces root rot of alfalfa in Wisconsin, 2014. Plant Disease Management Reports 9:ST002.
  24. Smith, D.L., Chapman, S., and Jensen, B. 2015. Evaluation of fungicides for control of foliar diseases of alfalfa in Wisconsin, 2014. Plant Disease Management Reports 9:CF025.
  25. Smith, D.L., Chapman, S., and Jensen, B. 2015. Evaluation of fungicides for control of diseases of dent corn in Wisconsin, 2014. Plant Disease Management Reports 9:FC027.
  26. Smith, D.L., and Chapman, S. 2015. Evaluation of fungicides for control of brown spot of soybean in Wisconsin, 2014. Plant Disease Management Reports 9:FC023.
  27. Smith, D.L., Chapman, S., and Conley, S.P. 2015. Evaluation of ‘curative’ fungicide treatments for control of Sclerotinia stem rot of soybean in Wisconsin, 2014. Plant Disease Management Reports 9:FC028.
  28. Smith, D.L., Chapman, S., and Jensen, B. 2015. Evaluation of foliar fungicides for control of foliar diseases of sweet corn in Wisconsin, 2014. Plant Disease Management Reports 9:V005
  29. Smith, D.L., Chapman, S., and Conley, S.P. 2015. Evaluation of foliar fungicides for control of diseases of wheat in Wisconsin, 2014. Plant Disease Management Reports 9:CF024.
  30. Smith, D.L. and Jensen, B. Evaluation of fungicides for control of brown spot of soybean in Wisconsin, 2013. Plant Disease Management Reports 8:FC179.
  31. Smith, D.L., Jensen, B., and Conley, S.P. Evaluation of fungicides for control of Sclerotinia stem rot of soybean in Wisconsin, 2013.  Plant Disease Management Reports 8:FC184.
  32. Smith, D.L. and Jensen, B. Evaluation of fungicides for control of foliar diseases of dent corn in Wisconsin, 2013.  Plant Disease Management Reports 8:FC169.
  33. Smith, D.L. and Jensen, B. Evaluation of fungicides for control of leaf diseases of sweet corn in Wisconsin, 2013. Plant Disease Management Reports 8:V228.
  34. Smith, D.L. and Jensen, B. Evaluation of fungicides for control of foliar diseases of alfalfa in Wisconsin, 2013. Plant Disease Management Reports 8:CF030.
  35. Smith, D.L. and Conley, S.P. Evaluation of fungicides for control of diseases of wheat in Wisconsin, 2013. Plant Disease Management Reports 8:CF031.
  36. Smith, D.L. Lyles, J.L., and Payne, A.F. Evaluation of reduced-risk and organic fungicide programs for control of black rot of grape in Oklahoma, 2011.  Plant Disease Management Reports 6:SMF012.
  37. Smith, D.L. and Walker, N.R. Evaluation of fungicide, application timing, and foliage wetness on control of brown patch of tall fescue in Oklahoma, 2011. Plant Disease Management Reports 6:T003.
  38. Smith, D.L. and Walker, N.R. Evaluation of fungicides for the management of dollar spot of creeping bentgrass in Oklahoma, 2011.  Plant Disease Management Reports 6:TO04.
  39. Walker, N.R. and Smith, D.L. Evaluation of multiguard protect EC for suppression of nematodes in putting greens in Oklahoma, 2011.  Plant Disease Management Reports 6:TO17.
  40. Walker, N.R. and Smith, D.L. Evaluation of macrocyclic lactones for suppression of nematodes infesting putting greens in Oklahoma, 2011. Plant Disease Management Reports 6:TO18.
  41. Smith, D.L. Payne, A.F., and Moore, J.W. Evaluation of conventional fungicide programs and new fungicide formulations for control of pecan scab in Oklahoma, 2010. Plant Disease Management Reports 5:STF007.
  42. Smith, D.L. and Walker, N.R. 2011. Evaluation of fungicides for the control of large patch of Zoysiagrass in Oklahoma, 2009-2010.Plant Disease Management Reports 5:TO26.
  43. Smith, D.L. and Walker, N.R. 2011. Evaluation of consumer and commercial fungicides for control of brown patch of tall fescue in Oklahoma, 2010. Plant Disease Management Reports 5:TO27.
  44. Smith, D.L. and Walker, N.R. 2011. Evaluation of fungicide programs for management of dollar spot and brown patch of creeping bentgrass, 2010. Plant Disease Management Reports 5:TO28.
  45. Walker, N.R., Marek, S.M., Wu, Y., Mitchell, T.K., and Smith, D.L. 2010. Infection and colonization of bermudagrass by Ophiosphaerella herpotricha,a causal agent of spring dead spot.USGA-TERO http://usgatero.msu.edu/v09/n23.pdf. 
  46. Smith, D.L. Evaluation of organic and conventional fungicide programs for the control of black rot of grape in Oklahoma, 2009. Plant Disease Management Reports 4:SMF005.
  47. Smith, D.L. Payne, A.F., and Moore, J.W. Evaluation of conventional fungicide programs for the control of pecan scab in Oklahoma, 2009. Plant Disease Management Reports 4:STF010.
  48. Smith, D.L. and Walker, N.R. 2010. Evaluation of fungicide for control of large patch of Zoysiagrass in Oklahoma, 2009. Plant Disease Management Reports 4:TO32.
  49. Smith, D.L. and Walker, N.R. 2010. Evaluation of fungicide for control of brown patch of tall fescue in Oklahoma, 2009. Plant Disease Management Reports 4:TO33.
  50. Smith, D.L. and Walker, N.R. 2010. Evaluation of fungicide programs for management of dollar spot and brown patch of creeping bentgrass, 2009. Plant Disease Management Reports 4:TO34.
  51. Smith, D.L. and Walker, N.R. Evaluation of fungicide programs for management of dollar spot and brown patch of creeping bentgrass, 2008.  Plant Disease Management Reports 3:TO25.
  52. Smith, D.L. and Walker, N.R. Effects of DMI fungicides and Primo MAXX on ‘U-3’, ‘Riviera’, and ‘Tifway 419’ bermudagrass, 2008.  Plant Disease Management Reports 3:TO24.
  53. Smith, D.L. and Walker, N.R. Evaluation of fungicides for brown patch control in tall fescue/Kentucky bluegrass residential lawns, 2008.  Plant Disease Management Reports3:TO26
  54. Smith, D.L. 2009. Evaluation of fungicides for control of black rot of grape in Oklahoma, 2008. Plant Disease Management Reports 3:SMF024.
  55. Shew, B.B., Hollowell, J.E., and Smith, D.L. Evaluationof foliar fungicides for the control of peanut diseases in North Carolina, 2007. Plant Disease Management Reports 2:FC077.
  56. Shew, B.B., Hollowell, J.E., and Smith, D.L. Evaluation of LEM-17 for the control of peanut diseases in North Carolina, 2007.Plant Disease Management Reports 2:FC076.
  57. Shew, B.B., Hollowell, J.E., and Smith, D.L. Evaluation of Topguard, V-10116, and Headline for the control of peanut diseases in North Carolina, 2007. Plant Disease Management Reports 2:FC075.
  58. Smith, D.L., Hollowell, J.E., Shew, B.B., and Cochran, A. 2007. Application time and sequence of fungicide treatments for controlling Sclerotinia blight of peanut, 2006.Plant Disease Management Reports 1:FC066.
  59. Smith, D.L., Hollowell, J.E., Shew, B.B., and Cochran, A. 2006. Application time and sequence of fungicide treatments for controlling Sclerotinia blight of peanut, 2005.Fungicide and Nematicide Tests 61:FC018.
  60. Shew, B.B., Hollowell, J.E., and Smith, D.L. Evaluation of foliar fungicides for the control of peanut disease in North Carolina, 2005. Fungicide and Nematicide Tests 61:FC011.
  61. Smith, D.L., Hollowell, J.E., Shew, B.B., and Cochran, A. 2005. Evaluation of alternating fungicide treatments for controlling Sclerotinia blight of peanut, 2004.Fungicide and Nematicide Tests 60: FC096.
  62. Shew, B.B., Hollowell, J.E., Smith, D.L. Evaluation of foliar fungicides for the control of peanut diseases in North Carolina, 2004. Fungicide and Nematicide Tests 60: FC107.
  63. Smith, D.L.,Shew, B.B., and Hollowell, J.E. 2004. Evaluation of two fungicides for control of Sclerotinia blight of peanut, 2003. Fungicide and Nematicide Tests 59: FC031.

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