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United States Department of Agriculture

Agricultural Research Service

Warren E. Copes

Research Plant Pathologist

1 - Research Interests
2 - Publication Reprints
3 - Links
Publication Reprints

Journal Articles

  • Copes, W. E., and Scherm, H. 2010. Rhizoctonia web blight development on container-grown azalea in relation to time and environmental factors. Plant Disease 94: (accepted for publication).

  • Ahonsi, M.O., Banko, T.J., Doane, S.R., Demuren, A.O., Copes, W.E., and Hong, C. 2010. Effects of hydrostatic pressure, agitation and CO2 stress on Phytophthora nicotianae zoospore survival. Pest Management Science (online journal) DOI 10.1002/ps.1926.

  • Copes, W.E., and Blythe, E.K. 2009. Chemical and hot water treatments to control Rhizoctonia AG P infesting stem cuttings of azalea. HortScience 44:1370-1376.

  • Thomson, J.L., and Copes, W.E. 2009. Modeling disease progression of camellia twig blight using a recurrent event model. Phytopathology 99:378-384.

  • Copes, W.E. 2009. Rate and intervals of hydrogen dioxide applications to control Puccinia hemerocallidis on daylily. Crop Protection 28:24-29.

  • Copes, W.E., and Thomson, J.L. 2008. Survival analysis to determine the length of the incubation period of camellia twig blight caused by Colletotrichum gloeosporioides. Plant Disease 92:1177-1182.

  • Copes, W.E., and Stevenson, K.L. 2008. A pictorial disease severity key and the relationship between severity and incidence for black root rot of pansy caused by Thielaviopsis basicola. Plant Disease 92:1394-1399.

  • Rinehart, T.A., Copes, W.E., Toda, T., and Cubeta, M.A. 2007. Genetic characterization of binucleate Rhizoctonia species causing web blight on azalea in Mississippi and Alabama. Plant Disease 91:616-623.

  • Copes, W. E., and Scherm, H. 2005. Plant spacing effects on microclimate and Rhizoctonia web blight development in container-grown azalea. Hortscience 40:1408-1412. pdf reprint

  • Copes, W. E. 2004. Dose curves of disinfestants applied to plant production surfaces to control Botyrtis cinerea. Plant Dis. 88:509-515. pdf reprint
  • Copes, W. E. and Hendrix, F. F., Jr. 2004. The effect of temperature on sporulation of Botryosphaeria dothidea, B. obtusa, and B. rhodina. Plant Dis. 88:292-296. pdf reprint
  • Copes, W. E., Chastaganer, G. A., and Hummel, R. L. 2004. Activity of chlorine dioxide in a solution of ions and pH against Thielaviopsis basicola and Fusarium oxysporum. Plant Dis. 88:188-194. pdf reprint
  • Copes, W. E., Chastaganer, G. A., and Hummel, R. L. 2003. Toxicity responses of herbaceous and woody ornamental crops to chlorine and hydrogen dioxides. Online. Plant Health Progress dol:10.1094/PHP-2003-0311-01-RS. pdf reprint
  • Mims, C. W., Copes, W. E., and Richardson, E. A. 2000. Ultrastructure of the penetration and infection of pansy roots by Thielaviopsis basicola. Phytopathology 90:843-850.
  • Copes, W. E. and Hendrix, F. F. 1996. The influence of NO3:NH4 ratio, N, K and pH on root rot of Viola wittrockiana caused by Thielaviopsis basicola. Plant Dis. 80:879-884.
  • Copes, W. E. and Hendrix, F. F. 1996. Chemical disinfestation of greenhouse growing surface materials contaminated with Thielaviopsis basicola. Plant Dis. 80:885-886.

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Last Modified: 4/13/2010
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