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Plant Pathology Recent Publications

  • Richard W. Smiley

Updated June 2, 2022

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Journal Papers

  1. Smiley, R.W. 2021. Root-lesion nematodes affecting dryland cereals in the semi-arid Pacific Northwest USA. Plant Disease 105:3324-3343. Online at: https://apsjournals.apsnet.org/doi/pdf/10.1094/PDIS-04-21-0883-FE. (abstract)
  2. Smiley, R.W. 2021. Economic loss from Rhizoctonia bare patch in rainfed winter wheat and spring barley in Oregon. Plant Disease 105:3803-3808. Online at: https://apsjournals.apsnet.org/doi.org/10.1094/PDIS-01-21-0026-SC. (abstract)
  3. Smiley, R.W., and S. Machado. 2020. Fusarium crown rot of winter wheat influenced by resource competition near a tree windbreak. Plant Disease 104:348–357. (abstract)
  4. Smiley, R.W. 2019. Mechanized method to inoculate field soil to evaluate Fusarium crown rot of wheat. Plant Disease 103:2857-2864. (abstract)
  5. Smiley, R.W. 2019. Fusarium crown rot whitehead symptom as influenced by wheat crop management and sampling date. Plant Disease 103:2612-2623. (abstract)
  6. Smiley, R.W., A.A. Dababat, S. Iqbal, M.G.K. Jones, Z. Tanha Maafi, D.L. Peng, S.A. Subbotin, and L. Waeyenberge. 2017. Cereal cyst nematodes: A complex and destructive group of Heterodera species. Plant Disease 101:1692-1720. (abstract)
  7. Thompson, A.L., A.K. Mahoney, R.W. Smiley, T.C. Paulitz, S. Hulbert, and K. Garland-Campbell. 2017. Resistance to multiple soil-borne pathogens of the Pacific Northwest is co-located in a wheat recombinant inbred line population. G3 (Genes, Genomes, Genetics) 7:1109-1116. (abstract)
  8. Smiley, R.W., S. Machado, K.E.L. Rhinhart, C.L. Reardon, and S.B. Wuest. 2016. Rapid quantification of soilborne pathogen communities in wheat-based long-term field experiments. Plant Disease 100:1692-1708. (abstract)
  9. Smiley, R.W., and J.M. Marshall, J.M. 2016. Detection of dual Heterodera avenae resistance plus tolerance in spring wheat. Plant Disease 100:1677-1685. (abstract)
  10. Thompson, A.L., R.W. Smiley, T.C. Paulitz, and K. Garland-Campbell. 2016. Identification of resistance to Pratylenchus neglectus and Pratylenchus thornei in Iranian landrace accessions of wheat. Crop Science 56:654-672. (abstract)
  11. Marshall, J.M., and R.W. Smiley. 2016. Spring barley resistance and tolerance to the cereal cyst nematode Heterodera avenae. Plant Disease 100:396-407. (abstract)
  12. Thompson, A.L., R.W. Smiley, and K. Garland-Campbell. 2015. Registration of LouAu (Louise/IWA8608077) wheat recombinant inbred line mapping population. Journal of Plant Registrations 9:424-429. (abstract)
  13. Smiley, R.W., and G.P. Yan. 2015. Discovery of Heterodera filipjevi in Washington and comparative virulence with H. avenae on wheat. Plant Disease 99:376-386. (abstract)
  14. Smiley, R.W., J.A. Gourlie, G.P. Yan, and K.E.L. Rhinhart. 2014. Resistance and tolerance of landrace wheat in fields infested with Pratylenchus neglectus and P. thornei. Plant Disease 98:797-805. (abstract)
  15. Smiley, R.W., G.P. Yan, and J.A. Gourlie. 2014. Selected Pacific Northwest crops as hosts of Pratylenchus neglectus and P. thornei. Plant Disease 98:1341-1348. (abstract)
  16. Smiley, R.W., G.P. Yan, and J.A. Gourlie. 2014. Selected Pacific Northwest rangeland and weed plants as hosts of Pratylenchus neglectus and P. thornei. Plant Disease 98:1333-1340. (abstract)
  17. Smiley, R.W., J.M. Marshall, J.A. Gourlie, T.C. Paulitz, S.L. Kandel, M.O. Pumphrey, K. Garland-Campbell, G.P. Yan, M.D. Anderson, M.D. Flowers, and C.A. Jackson. 2013. Spring wheat tolerance and resistance to Heterodera avenae in the Pacific Northwest. Plant Disease 97:590-600.  (abstract) (extension version)
  18. Yan, G.P., R.W. Smiley, P.A. Okubara, and A.M. Skantar. 2013. Species-specific PCR assays for differentiating Heterodera filipjevi and H. avenae. Plant Disease 97:1611-1619. (abstract)
  19. Yan, G.P., R.W. Smiley, P.A. Okubara, A. Skantar, and K.L. Reardon. 2013. Developing a realtime PCR assay for detection and quantification of Pratylenchus neglectus in soil. Plant Disease 97:757-764. (abstract)
  20. Hajihassani, A., R.W. Smiley, and F.J. Afshar. 2013. Effects of co-inoculations with Pratylenchus thornei and Fusarium culmorum on growth and yield of winter wheat. Plant Disease 97:1470-1477. (abstract)
  21. Smiley, R.W., S. Machado, J.A. Gourlie, L.C. Pritchett, G.P. Yan, and E.E. Jacobsen. 2013. Influence of semi-arid cropping systems on root diseases and inoculum density of soilborne pathogens. Plant Disease 97:547-555. (abstract) (extension version)
  22. Smiley, R.W., S. Machado, J.A. Gourlie, L.C. Pritchett, G.P. Yan, and E.E. Jacobsen. 2013. Effects of crop rotation and tillage on Pratylenchus species in the semi-arid Pacific Northwest. Plant Disease 97:537-546. (abstract)  (extension version)
  23. Sullivan, L.S., F.L. Young, R.W. Smiley, and J.R. Alldredge. 2013. Pest management in no-till facultative wheat in the Pacific Northwest, USA. Crop Protection 53:1332-138.
  24. Kandel, S.L., R.W. Smiley, K. Garland-Campbell, A.A. Elling, J. Abatzoglou, D. Huggins, R. Rupp, and T.C. Paulitz. 2013. Relationship between climatic factors and distribution of Pratylenchus spp. in the dryland wheat-production areas of eastern Washington. Plant Disease 97:1448-1456. (abstract)
  25. Poole, G.J., R.W. Smiley, C. Walker, D. Huggins, R. Rupp, J. Abatzoglou, K. Garland-Campbell, and T.C. Paulitz. 2013. Effects of climate on the distribution of Fusarium species causing crown rot of wheat in the Pacific Northwest of the US. Phytopathology 103: 1130-1140. (abstract)
  26. Haddadi, F., A. Mokabli, and R.W. Smiley. 2013. Characterisation of virulence reactions for Heterodera avenae populations from two localities in Algeria. Phytoparasitica 41:449-456. (abstract)
  27. Smiley, R.W., J.A. Gourlie, K.E.L. Rhinhart, J.M. Marshall, M.D. Anderson, and G.P. Yan. 2012. Influence of nematicides and fungicides on spring wheat in fields infested with soilborne pathogens. Plant Disease 96:1537-1547.  (abstract)  (extension version)
  28. Poole, G.J., R.W. Smiley, T.C. Paulitz, C.A. Walker, A.H. Carter, D.R. See, and K. Garland-Campbell. 2012. Identification and quantitative trait loci (QTL) for resistance to Fusarium crown rot (Fusarium pseudograminearum) in multiple assay environments in the Pacific Northwest US. Theoretical & Applied Genetics 125:91-107. (abstract)
  29. Smiley, RW. 2012. A fluidizing column for extracting cysts of Heterodera avenae from soil. Plant Disease 96:820-826. (abstract)
  30. Yan, G.P., R.W. Smiley, and P.A. Okubara. 2012. Detection and quantification of Pratylenchus thornei in DNA extracted from soil using real-time PCR. Phytopathology 102:14-22. (abstract)
  31. Smiley, R.W., J.M. Marshall, and G.P. Yan. 2011. Effect of foliarly-applied spirotetramat on reproduction of Heterodera avenae on wheat roots. Plant Disease 95:983-989.  (abstract)
  32. Smiley, R.W., G.P. Yan, and J.N. Pinkerton. 2011. Resistance of wheat, barley and oat to Heterodera avenae in the Pacific Northwest USA. Nematology 13:539-552. (abstract)
  33. Yan, G.P., and R.W. Smiley. 2010. Distinguishing Heterodera filipjevi and H. avenae using PCR-RFLP and cyst morphology. Phytopathology 100:216-224. (abstract)
  34. Smiley, R.W. 2009. Root-lesion nematodes reduce yield of intolerant wheat and barley. Agronomy Journal 101: 1322-1335. (abstract)
  35. Smiley, R.W., and H. Yan. 2009. Variability of Fusarium crown rot tolerances among cultivars and lines of spring wheat. Plant Disease 93:954-961. (abstract)
  36. Smiley, R.W. 2009. Water and temperature parameters associated with winter wheat diseases caused by soilborne pathogens. Plant Disease 93:73-79. (abstract)
  37. Smiley, R.W., and S. Machado. 2009. Pratylenchus neglectus reduces yield of winter wheat in dryland cropping systems. Plant Disease 93:263-271. (abstract)
  38. Yan, G.P., R.W. Smiley, P.A. Okubara, A. Skantar, S.A. Easley, J.G. Sheedy, and A.L. Thompson. 2008. Detection and discrimination of Pratylenchus neglectus and P. thornei in DNA extracts from soil. Plant Disease 92:1480-1487. (abstract)
  39. Smiley, R.W., J.G. Sheedy,, and S.A. Easley. 2008. Vertical distribution of Pratylenchus spp. in silt loam soil of Pacific Northwest dryland crops. Plant Disease 92:1662-1668. (abstract)
  40. Smiley, R.W., G.P. Yan, and Z.A. Handoo. 2008. First record of the cyst nematode Heterodera filipjevi on wheat in Oregon. Plant Disease 92:1136. (full report)
  41. Smiley, R.W., R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2006. Geocenamus brevidens reduces yield of no-till annual spring wheat in Oregon. Plant Dis. 90:885-890. (abstract)
  42. Smiley, R.W., R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2005. Pratylenchus thornei associated with reduced wheat yield in Oregon. Journal of Nematology 37:45-54. (abstract)
  43. Smiley, R.W., R.G. Whittaker, J.A. Gourlie, S.A. Easley, and R.E. Ingham. 2005. Plant-parasitic nematodes associated with reduced wheat yield in Oregon: Heterodera avenae. Journal of Nematology 37:297-307. (abstract)
  44. Smiley, R.W., J.A. Gourlie, S.A. Easley, L.-M. Patterson, and R.G. Whittaker. 2005. Crop damage estimates for crown rot of wheat and barley in the Pacific Northwest. Plant Disease 89:595-604. (abstract)
  45. Smiley, R.W., R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2005. Suppression of wheat growth and yield by Pratylenchus neglectus in the Pacific Northwest. Plant Disease 89:958-968. (abstract)
  46. Smiley, R.W., Gourlie, J.A., Easley, S.A., and Patterson, L.-M. 2005. Pathogenicity of fungi associated with the wheat crown rot complex in Oregon and Washington. Plant Disease 89:949-957. (abstract)
  47. Smiley, R.W., J.A. Gourlie, R.G. Whittaker, S.A. Easley, and K.K. Kidwell. 2004. Economic impact of Hessian fly (Diptera: Cecidomyiidae) on spring wheat in Oregon and additive yield losses with Fusarium crown rot and lesion nematode. Journal of Economic Entomology 97:397-408. (abstract)
  48. Smiley, R.W., K. Merrifield, L.-M. Patterson, R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2004. Nematodes in dryland field crops in the semiarid Pacific Northwest USA. Journal of Nematology 36:54-68. (abstract)
  49. Smith, J.D., K.K. Kidwell, M.A. Evans, R.J. Cook, and R.W. Smiley. 2003. Evaluation of spring cereal grains and wild Triticum germplasm for resistance to Rhizoctonia solani AG-8. Crop Science 43:701-709. (abstract)
  50. Smith, J.D., K.K. Kidwell, M.A. Evans, R.J. Cook, and R.W. Smiley. 2003. Assessment of spring wheat genotypes for disease reaction to Rhizoctonia solani AG-8 in controlled environment and direct-seeded field evaluations. Crop Science 43:694-700. (abstract)
  51. Chen, C., W.A. Payne, R.W. Smiley, and M.A. Stoltz. 2003. Yield and water-use efficiency of eight wheat cultivars planted on seven dates in northeastern Oregon. Agronomy Journal 95:836-843.

Books, Chapters & Proceedings

  1. Smith, D., Wise, K., Freije, A., Sisson, A., Tenuta, A., Friskop, A., Byamukama, E., Marshall, J.M., Burrows, M., and Mueller, D. (editors). 2021. A Farmer's Guide to Wheat Diseases. APS Press, St. Paul, MN. 168 pages. (with contributions by R.W. Smiley and others)
  2. Smiley, R.W. 2021. Cereal cyst nematodes in the western USA. pp 27-33. In: Integrated Nematode Management: State-of-the-Art and Visions for the Future (R. Sikora, J. Desaeger and L. Molendijk, eds.). CABI Publishing, Wallingford, UK.
  3. Smiley, R.W. 2020. Dryland Crops Research Stations in Eastern Oregon: Moro and Pendleton: 1909-2020). Amazon Books. 446 pages.
  4. Smiley, R.W. 2020. Rotary Club of Pendleton: The First Century: 1920-2020. Amazon Books. 228 pages.
  5. Blok, V., G.L. Tylka, R.W. Smiley, W. de Jong, and M. Daub. 2018. Chapter 9: Resistance breeding. pp 174-214. In: Cyst Nematodes (R.N. Perry, M. Moens and J.T. Jones, eds.). CAB International, Wallingford, UK. 464 pp.
  6. Dababat, A.A., H. Muminjanov, and R.W. Smiley. 2015. Nematodes of Small Grain Cereals: Current Status and Research. FAO, Rome, Italy. 384 pp. (on-line at http://www.fao.org/3/a-i4934e.pdf)
  7. Smiley, R.W. and J.M. Marshall. 2015. Resistance and tolerance of spring wheat and barley to Heterodera avenae in the USA. pp. 265-274. In: A.A. Dababat, H. Muminjanov and R.W. Smiley (eds.). Nematodes of Small Grain Cereals: Current Status and Research. FAO, Rome, Italy. (on-line at http://www.fao.org/3/a-i4934e.pdf)
  8. Smiley, R.W. 2015. Effects of cropping systems on dominance of individual Pratylenchus species. pp. 315-325. In: A.A. Dababat, H. Muminjanov and R.W. Smiley (eds.). Nematodes of Small Grain Cereals: Current Status and Research. FAO, Rome, Italy. (on-line at http://www.fao.org/3/a-i4934e.pdf)
  9. Smiley, R.W. 2015. Multiplication of Pratylenchus neglectus and P. thornei on plants other than cereals. pp. 303-313. In: A.A. Dababat, H. Muminjanov and R.W. Smiley (eds.). Nematodes of Small Grain Cereals: Current Status and Research. FAO, Rome, Italy. (on-line at http://www.fao.org/3/a-i4934e.pdf)
  10. Smiley, R.W. and G.P. Yan. 2015. Molecular diagnostics aid in detecting and managing cereal nematodes in the USA. pp. 369-379. In: A.A. Dababat, H. Muminjanov and R.W. Smiley (eds.). Nematodes of Small Grain Cereals: Current Status and Research. FAO, Rome, Italy. (on-line at http://www.fao.org/3/a-i4934e.pdf)
  11. Bockus, W.W., R.L. Bowden, R.M. Hunger, W.L. Morrill, T.D. Murray, and R.W. Smiley (eds.). 2010. Compendium of Wheat Diseases and Insects, 3rd Edition. APS Press, St. Paul, MN. 171 p.
  12. Smiley, R.W. 2010. Root diseases, plant health and farming systems. pp. 47-54. in Proc. The Rovira Rhizosphere Symposium, August 15, 2008, Adelaide, Australia. (on-line at http://www.crawfordfund.org/resources/doc.html?publication=324&rtn=88)
  13. Smiley, R.W., and J.M. Nicol. 2009. Nematodes which challenge global wheat production. p. 171-187 in Wheat: Science and Trade, B.F. Carver, ed. Wiley-Blackwell, Ames, IA. (personal draft version)
  14. Smiley, R.W., D. Backhouse, P. Lucas, and T. Paulitz. 2009. Diseases which challenge global wheat production - root, crown, and culm rots. p. 125-153 in Wheat: Science and Trade, B.F. Carver, ed. Wiley-Blackwell, Ames, IA. (personal draft version)
  15. Smiley, R.W. 2009. Occurrence, distribution and control of Heterodera avenae and H. filipjevi in the western USA. p. 35-40 in Cereal Cyst Nematodes: Status, Research and Outlook. I.T. Riley, J.M. Nicol, and A.A. Dababat (eds.). CIMMYT, Ankara, Turkey. (full paper)
  16. Yan, G.P., and R.W. Smiley. 2009. Discovery of Heterodera filipjevi on wheat in the USA. p. 94-99 in Cereal Cyst Nematodes: Status, Research and Outlook. I.T. Riley, J.M. Nicol, and A.A. Dababat (eds.). CIMMYT, Ankara, Turkey. (full paper)
  17. Smiley, R.W., P.H. Dernoeden, and B.B. Clarke. 2005. Compendium of Turfgrass Diseases, 3rd Edition. APS Press, St. Paul, MN. 167 p.
  18. Smiley, R.W., J.A. Gourlie, S.A. Easley, and R.G. Whittaker. 2004. Australian wheat cultivars varying in tolerance to Fusarium crown rot perform similarly against F. pseudograminearum populations in the USA. p. 113-114 In. K. Ophel-Keller (ed.). Proc. 3rd Australasian Soilborne Diseases Symposium.
  19. Smiley, R.W., R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2004. Australian technology used to demonstrate lesion nematode damage in Pacific Northwest (USA) wheat. p. 218-219 In. K. Ophel-Keller (ed.). Proc. 3rd Australasian Soilborne Diseases Symposium.
  20. Smiley, R., J. Gourlie, R. Whittaker, S. Easley, and K. Kidwell. 2003. Economic impact of Hessian fly on spring wheat in eastern Oregon, 2001 & 2002. p. 19-26. in Research Reports: 62nd Annual Pacific Northwest Insect Management Conference. Portland, OR .
  21. Paulitz, T., R. Smiley, and R.J. Cook. 2002. Insights into the prevalence and management of soilborne cereal pathogens under direct seeding in the Pacific Northwest U.S.A. Canad. J. Plant Pathol. 24:416-428.
  22. Smiley, R.W. 1996. Diseases of wheat and barley in conservation cropping systems of the semi-arid Pacific Northwest. Amer.  J. Alternative Agric. 11:95-103.
  23. Mazzola, M., R.W. Smiley, A.D. Rovira, and R.J. Cook. 1996. Characterization of Rhizoctonia isolates, disease occurrence and management in cereals. pp. 259-267. In. Rhizoctonia Species: Taxonomy, Molecular Biology, Ecology, Pathology, and Control (B. Sneh, S. Jabaji-Hare, S. Neate, and G. Dijst. eds.). Kluwer Academic Publishers, The Netherlands.   578 p.
  24. Ogg, A.G., Jr., R.W. Smiley, K.S. Pike, J.P. McCaffrey, D.C. Thill, and S.S. Quisenberry. 1999. Integrated pest management for conservation systems. pp. 97-128. In. Advances in Conservation Farming (E.L. Michalson, R.I. Papendick, and J.E. Carlson, eds.). CRC Press, Boca Raton, LA. 233 p.

Extension Bulletins

  1. Hagerty, C.H., and R.W. Smiley. 2017. Field Guide for Diagnosing Common Wheat Maladies of the Pacific Northwest. Pacific Northwest Extension Bulletin 698. 11 pages. (https://catalog.extension.oregonstate.edu/pnw698).
  2. Smiley, R.W. 2016. Cereal cyst nematodes: Biology and management in Pacific Northwest wheat, barley and oat crops. PNW Extension Bulletin 620, Oregon State Univ., Corvallis, OR. 18 pages. (https://catalog.extension.oregonstate.edu/pnw620)
  3. Smiley, R. 2015. Plant-parasitic nematodes affecting small grain cereals in the Pacific Northwest. Oregon State Univ. Extension Bulletin PNW674. 8 pages. (https://catalog.extension.oregonstate.edu/pnw674)
  4. Smiley, R.W. 2015. Root-lesion nematodes: Biology and management in Pacific Northwest wheat cropping systems. PNW Extension Bulletin 617, Oregon State Univ., Corvallis, OR. 14 pages. (https://catalog.extension.oregonstate.edu/pnw617)
  5. Corp, M., S. Machado, D. Ball, R. Smiley, S. Petrie, M. Siemens, and S. Guy. 2004. Chickpea Production Guide. OSU Ext. Publ. EM 8791-E. 14 p. (bulletin)
  6. Smiley, R., R.J. Cook, and T. Paulitz. 2002. Seed treatments for small grain cereals. Oregon State Univ. Extension Publ. EM 8797. 8 pages. This OSU publication is now outdated; please refer to a more current bulletin from Montana State University, which is equally applicable to Oregon conditions:  Dyer, A., J. Johnson, C. Tharp, and M. Burrows. 2012. Small Grain Seed Treatment Guide. Montana State University Extension MontGuide #MT199608AG. (bulletin)

Selected Semi-technical Reports

  1. Smiley, R.W., J.G. Sheedy, A.L. Thompson, S.A. Easley, K.E.L. Rhinhart, G.P. Yan, and W.R. Jepsen. 2008. Reducing yield loss from root-lesion nematodes by improving wheat genetics. Oregon Agr. Expt. Stn. Spec. Rpt. 1083:43-57.
  2. Yan, G.P., R.W. Smiley, P.A. Okubara, S.A. Easley, J.G. Sheedy, and A.L. Thompson. 2008. Molecular diagnostics of root-lesion nematodes and cereal cyst nematodes. Oregon Agr. Expt. Stn. Spec. Rpt. 1083:93-108.
  3. Machado, S., Pritchett, L., Jacobsen, E., Petrie, S., Smiley, D., Ball, D., Wysocki, D., Wuest, S., Gollany, H., and Jepsen, W. 2008. Long-term experiments at CBARC-Moro and Center of Sustainability, Heppner, 2006-07. Oregon Agr. Exp. Sta. Spec. Rep. Rep. 1083:109-124.
  4. Smiley, R., J. Sheedy, J. Pinkerton, S. Easley, A. Thompson, and G. Yan. 2007. Cereal cyst nematode: distribution, yield reduction, and crop management strategies. Oregon Agr. Expt. Stn. Spec. Rpt. 1074:15-29.
  5. Machado, S., R. Smiley, C. Humphreys, J. Gourlie, R. Whittaker, K. Rhinhart, and M. Siemens. 2006. Paraplow effects on diseases and grain yield of spring wheat and chickpea. Biol. Cult. Tests 21:FC057 [at http://www/plantmanagementnetwork.org/pub/trial/bctests/Vol21/].
  6. Easley, S., C. Watson, J. Sheedy, D. Melanson, R. Descalzo, and R. Smiley. 2006. Molecular diagnostics and breeding in wheat root disease research. Oregon Agr. Expt. Stn. Spec. Rpt. 1068:25-31. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1068-e/06.pdf
  7. Sheedy, J., R. Smiley, and S. Easley. 2006. Soil profile distribution and management strategies of the root-lesion nematodes Pratylenchus thornei and P. neglectus in the Pacific Northwest. Oregon Agr. Expt. Stn. Spec. Rpt. 1068:68-77. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1068-e/010.pdf
  8. Machado, S., L. Pritchett, E. Jacobsen, S. Petrie, R. Smiley, D. Ball, D. Wysocki, S. Wuest, H. Gollany, and W. Jepsen. 2006. Long-term experiments at CBARC-Moro and Center of Sustainability, Heppner, 2005. Oregon Agr. Expt. Stn. Spec. Rpt. 1068:40-49. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1068-e/08.pdf
  9. Smiley, R., M. Siemens, T. Gohlke and J. Poore. 2005. Small grain acreage and management trends for eastern Oregon and Washington. Oregon Agr. Expt. Stn. Spec. Rpt. 1061:30-50. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1061-e/3.htm
  10. Smiley, R., J. Gourlie, R. Whittaker, S. Easley, K. Rhinhart, E. Jacobsen, A. Burnett, J. Jackson, D. Kellogg, and T. Zeckman. 2004. Seed treatments for chickpea (garbanzo bean). Oregon Agr. Expt. Stn. Spec. Rpt. 1054:120-127. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1054-e/11.htm
  11. Smiley, R., R. Whittaker, J. Gourlie, S. Easley, K. Rhinhart, E. Jacobsen, A. Burnett, J. Jackson, D. Kellogg, J. Skirvin, and T. Zeckman. 2004. Lesion nematodes reduce yield in annual spring wheat. Oregon Agr. Expt. Stn. Spec. Rpt. 1054:44-60. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1054-e/5.htm
  12. Smiley, R., S. Machado, and K. Rhinhart. 2004. Competition for water by windbreak trees: distance of impact on wheat yield. Oregon Agr. Expt. Stn. Spec. Rpt. 1054:30-34. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1054-e/3.htm
  13. Smiley, R.., R. Whittaker, J. Gourlie, S. Easley, K. Rhinhart, E. Jacobsen, J. Peterson, K. Kidwell, and K. Campbell. 2003. Genetic tolerance to Fusarium crown rot of wheat. Oregon Agr. Expt. Stn. Spec. Rpt. 1047:40-52. Available online at http://extension.oregonstate.edu/catalog/html/sr/sr1047-e/40.htm

Other Extension

  • Smiley, R. W. 2018. Turfgrasses and Lawn Care. Manual for Master Gardeners. Umatilla County Extension Service, Pendleton. 32 pages.
  • OSU-CAS accountability database: Oregon Invests! (access the database)
    • R.W. Smiley. Controlling Diseases and Pests of Cereals in Eastern Oregon.
    • R.W. Smiley. Educational Programs on Diseases and Pests of Cereal Crops in Eastern Oregon.

Selected Reports of Individual Tests

  1. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2008. Resistance of Pacific Northwest spring wheat and barley cultivars to root-lesion nematode, 2007; Pratylenchus thornei. Plant Disease Management Reports 2:N007.
  2. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2008. Root-lesion nematode resistance ratings of Pacific Northwest winter wheat and barley cultivars, 2007; Pratylenchus thornei. Plant Disease Management Reports 2:N015.
  3. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2008. Resistance of Pacific Northwest winter wheat and barley cultivars to root-lesion nematode, 2007; Pratylenchus neglectus. Plant Disease Management Reports 2:N016.
  4. Sheedy, J.G., R.W. Smiley, A.L. Thompson, and S.A. Easley. 2008. Tolerance of Pacific Northwest spring wheat and barley cultivars to root-lesion nematode, 2006; Pratylenchus neglectus. Plant Disease Management Reports 2:N012.
  5. Sheedy, J.G., R.W. Smiley, A.L. Thompson, and S.A. Easley. 2008. Tolerance of Pacific Northwest spring wheat and barley cultivars to root-lesion nematode, 2007; Pratylenchus neglectus. Plant Disease Management Reports 2:N011.
  6. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2008. Tolerance of Pacific Northwest winter wheat and barley cultivars to root-lesion nematode, 2006; Pratylenchus neglectus. Plant Disease Management Reports 2:N014.
  7. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2008. Tolerance of Pacific Northwest winter wheat and barley cultivars to root-lesion nematode, 2007; Pratylenchus neglectus. Plant Disease Management Reports 2:N013.
  8. Sheedy, J.G., R.W. Smiley, A.L. Thompson, and S.A. Easley. 2008. Root-lesion nematode tolerance reaction of Pacific Northwest spring wheat and barley cultivars, 2007; Pratylenchus thornei. Plant Disease Management Reports 2:N010.
  9. Sheedy, J.G., R.W. Sheedy, J.G., R.W. Smiley, A.L. Thompson, and S.A. Easley. 2008. Spring wheat cultivars response to aldicarb in soil infested by root-lesion nematode, 2007. Plant Disease Management Reports 2:N009.
  10. Sheedy, J.G., R.W. Smiley, A.L. Thompson, and S.A. Easley. 2008. Field tolerance reaction of Pacific Northwest spring wheat cultivars to crown rot, 2007. Plant Disease Management Reports 2:CF003.
  11. Sheedy, J.G., R.W. Smiley, P.M. Hayes, A.L. Thompson, S.A. Easley, and A.E. Corey. 2008. Resistance to root lesion nematode of barley entries in the Coordinated Agricultural Project, 2007; Pratylenchus thornei. Plant Disease Management Reports 2:N037.
  12. Sheedy, J.G., W.J. Raupp, A.L. Thompson, and R.W. Smiley. 2008. Resistance to root lesion nematodes of addition lines derived from Chinese Spring x Aegilops speltoides, 2007; Pratylenchus neglectus and P. thornei. Plant Disease Management Reports 2:N038.
  13. Thompson, A.L., J.G. Sheedy, K.G. Campbell, P.A. Okubara, and R.W. Smiley. 2008. Resistance of wheat to the root lesion nematode Pratylenchus thornei, 2008. Plant Disease Management Reports 2:N039.
  14. Sheedy, J.G., R.W. Smiley, S.A. Easley, and A.L. Thompson. 2007. Resistance reaction of Pacific Northwest spring wheat and barley cultivars to root-lesion nematode; Pratylenchus neglectus. Plant Disease Management Reports 1:CF022. (DOI: 10.1094/PDME01 online at http://www.plantmanagementnetwork.org/pub/trial/PDMR/default.asp)
  15. Smiley, R., S. Easley, J. Gourlie, R. Whittaker, K. Rhinhart, E. Jacobsen, T. Zeckman, and J. Jackson. 2004. Seed treatments for controlling damage by root diseases on winter wheat in Oregon , 2002-2003. Fungic. and Nemat. Tests 59:ST008 (2p., on-line journal of the American Phytopathological Society).
  16. Smiley, R., J. Gourlie, S. Easley, R. Whittaker, K. Rhinhart, E. Jacobsen, T. Zeckman, and J. Jackson. 2004. Seed treatments for controlling root disease complexes on chickpea, 2003. Fungic. and Nemat. Tests 59:ST009 (2p., on-line journal of the American Phytopathological Society).
  17. Smiley, R., R. Whittaker, J. Gourlie, S. Easley, K. Rhinhart, E. Jacobsen, D. Thompson, and A. Burnett. 2003. Seed treatments for controlling damage by root diseases on spring and winter wheat, 2001-2002. Fungic. and Nemat. Tests 58: ST024 (on-line journal of the American Phytopathological Society).
  18. Smiley, R., R. Whittaker, J. Gourlie, S. Easley, K. Rhinhart, E. Jacobsen, D. Thompson, and A. Burnett. 2003. Seed treatments for controlling root disease complexes on chickpea, 2002. Fungic. and Nemat. Tests 58: ST025 (on-line journal of the American Phytopathological Society).