Mary Olsen

Extension Specialist - The School of Plant Sciences
Marley 541F
(520) 626-2568x1 / (520) 626-2679 (Lab)

Educational Background

  • B.S. in Botany, University of Arizona, 1976
  • Ph.D. in Plant Pathology, University of Arizona, 1982

Research Interests

Diagnosis and control of fungal diseases of cotton, dry bean and cucurbits and the elucidation of the causal organism of rapid blight disease of turfgrass, Labyrinthula species.

Selected Publications

  • Kerrigan, J.L., M.W. Olsen, and S.B. Martin. 2012. Rapid Blight of Turfgrass. The Plant Health Instructor. DOI: 10.1094/PHI-I-2012-0621-01
  • Garber, N. and M. Olsen. 2011. Leaf spot of pinto bean caused by a long-beaked Alternaria in Southeastern Arizona. Plant Health Progress, doi:10.1094/PHP-2011-1018-01-BR.
  • Nischwitz, C. and M. Olsen. 2010. First report of two curtoviruses in spinach (Spinacea oleracea) and common beet (Beta vulgaris) in Arizona. Plant Health Progress (doi:10,1094/PHP-2010-0216-01-BR).
  • Douhan, G. W., Olsen, M. W., Herrell, A., Winder, C., Wong, F., and Entwistle, K. 2009. Genetic diversity of Labyrinthula terrestris, a newly emergent plant pathogen, and the discovery of new Labyrinthulid organisms. Mycological Research 113: 1192-1199
  • Randall, J., N. Goldberg, J. Kemp, M. Radionenko, J. French, M. Olsen and S. Hanson. 2009. Genetic Analysis of a Novel Xylella fastidiosa Subspecies Found in the Southwestern United States. Appl. Envir. Microbiol.75: 5631-5638.
  • Olsen, M. W., D. Bigelow, R. L. Gilbertson, L. Stowell and W. Gelernter. 2003. First report of a Labyrinthula sp. causing rapid blight disease of rough bluegrass and perennial ryegrass. Plant Disease 87:1267.

Areas of Research

  • Plant Protection and Pathology