William E. Grey, Research Assistant Professor, PhD from Montana State University.
Manager, Montana Foundation Seed Program

Office: 214 Plant BioScience Building
Lab: 237 Plant BioScience Building

Phone: 406-994-5687
Fax: 406-994-7600

Email Dr. Grey


My research interests include the epidemiology and control of cereal, legume, and floriculture diseases.


Manager, Montana Foundation Seed Stocks Program for the foundation seed production and distribution of MAES small grain and legume varieties.
Administrator of the MSU-NRCS Cooperative Research Program  for the distribution of plant materials for  the USDA-NRCS Plant Materials Center, Bridger MT.
Mint rootstock certification specialist for disease-free rootstock in greenhouse grown mint.


  • B.A. Biological Science, University of California-Santa Barbara 1972
  • M.S. Plant Pathology, Montana State University-Bozeman 1981
  • Ph.D. Plant Pathology, Montana State University-Bozeman 1990


  • American Phytopathological Society


Refereed Journals:

Lenssen, Andrew, William Grey, Sue Bodgett and Hayes Goosey.  2013.  Spring wheat production and associated pests in conventional and diversified cropping systems in north central Montana.  Plant Management Network, Manuscript ID CM-RS-13-0017 in review.

Kyung-Hee Kim, Leila Feiz, Alan T. Dyer, William Grey, Andrew C Hogg, John M. Martin, and Michael J. Girous.  2012.  Increased resistance to Penicillium Seed Rot in Transgenic Wheat Over-expressing Puroindolines.  J  Phytopathol 160:243–247 (2012) doi: 10.1111/j.1439-0434.2012.01881.x

A.W. Lenssen, S.D. Cash, P.G. Hatfield, U.M. Sainju, W.E. Grey, S.L. Blodgett, H.B. Goosey, and G.D. Johnson.  2010.  Yield, Quality, Water and Nitrogen Use of Durum and Annual Forages in Two-year Rotations.  Agronomy Journal 102: 4: 1261-1268 doi:10.2134/agronj2010.0078.

Wenda-Piesik A., Z. Sun, W.E. Grey, D.K. Weaver and W.L. Morrill.  2009.  Mycoses of Wheat Stem Sawfly (Hymenoptera: Cephidae) Larvae by Fusarium spp. Isolates.  Environ. Entomol. 38(2): 387-394.

Pariera-Dinkins, C., Brumfield, S.K., Peterson, R.K., Grey, W.E. and Sing, S.E.  2007.  Dalmatian Toadflax (Linaria dalmatica): New Host for Cucumber Mosaic Virus.  Weed Technology 21:  41-44.

Mickelson, J.A. and Grey, W.E.  2006.  Effect of soil water content on wild oat (Avena fatua) seed mortality and seedling emergence.  Weed Science 54 (2): 255-262.

Hance, S.T., W.E. Grey, N.F. Weeden.  2004.  Identification of tolerance to Fusarium solani in Pisum sativum ssp. elatius.  Pisum Genetics 36: 9-13.

Quimby, P.C., L.R. King and W.E. Grey.  2002.  Biological control as a means of enhancing the sustainability of crop/land management systems.  Agriculture, Ecosystems and Environment.  88(2):147-152.

Sink, K. and W.E. Grey. 1999.  A root-injection method to assess verticillium wilt resistance of peppermint (Mentha x piperita L) and its use in identifying resistant somaclones of cv. Black Mitcham.  Euphytica 106: 223-230.

Mathre, D.E., R.H. Johnston, and W.E. Grey.  1998.  Biological control of take-all disease of wheat caused by Gaeumannomyces graminis var. tritici under field conditions using a phialopohora sp.  Biocontrol Sci. and Tech. 8:449-457.

Quimby, Jr., P.C., N.K. Zidack, C.D. Boyette, and W.E. Grey.  1998.  A simple method for stablizing and granulating fungi.  Biocontrol Sci. and Tech. 9: 5-8.

Mathre, D.E., Kushnak, G.D., Martin, J.M., Grey, W.E. and Johnston, R.H.  1997.  Effect of residue management on barley production in the presence of net blotch disease.  J. Prod. Agric. 10: 323-326.

Kearing, S. A., Nowierski, R. M. and Grey, W.E.  1997.  First report of Spotted Knapweed (Centaurea maculosa) Stem Die-back caused by Pseudomonas syringae.  Plant Disease81: 113.

Grey, W.E., Quimby, Jr. P.C., Mathre, D.E., and Young, J.A.  1995.  Potential for biological control of downy brome (Bromustectorum) and medusahead (Taeniatherum caput-medusae) with crown and root rot fungi.  Weed Technology 9: 362-365.

Henson, J.M., Goins, T., Grey, W.E., Mathre, D.E., and Elliott, M.L.  1993.  Use of polymerase chain reaction to detect Gaeumannomycesgraminis DNA in plants grown in artificially and naturally infested field soil.  Phytopathology 83: 283-287.

Engel, R.E. and Grey, W.E.  1991.  Chloride fertilizer effects on winter wheat inoculated with Fusarium culmorum.  Agronomy Journal 83: 204-208.

Grey, W.E., Engel, R.E., and Mathre, D.E.  1991.  Reaction of spring barley to common root rot under several moisture regimes: Effect on yield components, plant stand, and disease severity.  Can. J. Plant Sci. 71: 461-472.

Grey, W.E. 1991. Influence of temperature on colonization of spring barleys by vesicular arbuscular mycorrhizal fungi.  Plant and Soil 137: 181-190.

Mathre, D.E., Johnston, R.H. and Grey, W.E.  1990.  Effect of seed treatment in preventing transmission of Dwarf Bunt of winter wheat to new areas.  Pesticide Sci. 30: 217-222
Grey, W.E. and Mathre, D.E.  1988.  Evaluation of spring barleys for reaction to Fusarium culmorum seedling blight and root rot.  Can. J. Plant Sci. 68: 23-30.

Grey, W.E., Mathre, D.E., Hoffman, J.A., Powelson, R.L., and Fernandez, J.A.  1986.  Importance of seed-borne Tilletia controversa for infection of winter wheat and its relationship to international commerce.  Plant Disease 70: 122-125.

Grey, W.E. and Mathre, D.E.  1984.  Reaction of spring barleys to common root rot and its effect on yield components.  Can. J. Plant Sci. 64: 245-253.

Teaching and Service Publications:

Burrows, M., Dyer, A., Johnston, R., and Grey, W. 2008. Evaluation of fungicide application timing for control of stripe rust on winter wheat in Montana, 2007. Plant Disease Management Reports. 2:CF028.

Mathre, D.E., R.H. Johnston, and W.E. Grey.  2003.  Diagnosis of common root rot of wheat and barley.  Plant Health Progress – PHP Diagnostics.  doi:10.1094/PHP-2003-0819-01-DG.

Grey, W.E. and D.E. Mathre. 2001.  Plant Diseases in the News.  The Plant Health Instructor DOI: 10.1094/PHI-T-2001-1025-02.

Mathre, D.E., R.H. Johnston, and W.E. Grey.  2001.  Small Grain Cereal Seed Treatment.  The Plant Health Instructor. DOI: 10.1094/PHI-I-2001-1008-01.

Lundy, R., W.E. Grey, and C. Rivera-Smith.  1998.  Benefits of using certified mint planting material.  Mint Growers Bulletin. U.S. Environmental Protection Agency.

Mathre, D.E., Johnston, R.H., Grey, W.E., Riesselman, J., Stougaard, R.  1992.  Small grain cereal seed treatment in Montana—Past successes and a look to the future.  Montana AgResearch – Montana Agricultural Experiment Station, Montana State University.  9 (2): 31-33.

Extension Publications:

Burrows, M., A. Dyer, W. Grey.  2010.  Small grain root and crown diseases. MontGuide MT2010007AG
Burrows, M., D. Ito, and W.E. Grey.  2009.  Cereal viruses of importance in Montana.  MontGuide MT200911AG.

Burrows, M., J. Olmstead, and W. Grey.  2009.  Fungal, bacterial and physiological leaf diseases of cereal crops (wheat, durum barley).  MontGuide MT200913AG.

Burrows, M., W.E. Grey and A. Dyer.  2008. Fusarium head blight (scab) of wheat and barley.  MontGuide MT200806AG.

Johnson, W.A., Johnston, R.H., Grey, W., Burrows, M., and Dyer, A.T. 2008.  Root lesion nematodes in wheat. Montguide MT200801AG.


Quimby, Jr., P.C., Caesar, A.J., J.L. Birdsall, W. Connick, Jr, C.D. Boyette, N.K. Zidack, and W. E. Grey.  1997.  A sucrose formulation method for the stabilization of bacteria, fungi and nematodes. Patent Application 08/695,249.



Director - Montana Foundation Seed Program.
Administrator -MSU – NRCS Cooperative Research Program for grasses, forbs, legumes, shrubs and trees.
Manager - Mint Certification Program,.


Evaluation of seed treatments for control of small grain diseases.
The influence of reduced or minimum tillage on soil-borne diseases of wheat in sustainable cropping systems.
Epidemiology of the wheat stem sawfly and Fusarium crown rot in dryland wheat.


Advising undergraduate students on independent research projects.