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Richard W. SmileyProfessor;
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Ecology and soilborne plant pathogens; management of root and crown diseases of small grains and grasses.
Emphasis is on the biology and control of soilborne plant-pathogenic fungi and plant-parasitic nematodes that cause root and crown diseases of wheat and barley. Disease management strategies include investigations of tillage and cropping systems, improvement of genetic tolerance in crop varieties, and chemical control. This work is performed at facilities of the experiment station and cooperating farmers.
Columbia Basin Agricultural
Research Center
http://cbarc.aes.oregonstate.edu/cbarc/plantpathologyhome.php
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.
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 Sci. 43:701-709.
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. J. Econ. Entomol. 97:397-408.
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. J. Nematol. 36:54-68.
Smiley, R.W., R.G. Whittaker, J.A. Gourlie, and S.A. Easley. 2005. Pratylenchus thornei associated with reduced wheat yield in Oregon . J. Nematol. 37:45-54.
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 Dis. 89:595-604.
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 . J. Nematol. 37: 297-307.
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.
Smiley, R.W., J.A. Gourlie, S.A. Easley, and L.-M. Patterson. 2005. Pathogenicity of fungi associated with the wheat crown rot complex in Oregon and Washington . Plant Dis. 89: 949-957.
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.
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. Exp. Sta. Spec. Rep. 1083:43-57.
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. Exp. Sta. Spec. Rep. 1083:93-108.
