Mary Hausbeck, Ph.D.

Mary Hausbeck

Department of Plant, Soil and Microbial Sciences

University Distinguished Professor and Extension Specialist

Telephone: 517-355-4534

Plant Biology Laboratories
612 Wilson Road
Room 140
East Lansing, MI 48824

Area of Expertise:

Vegetable & Greenhouse Ornamental Pathology
Management, Etiology, Epidemiology.
Disease management, disease predictors.


B.S., Michigan State University
M.S., Michigan State University
Ph.D., The Pennsylvania State University

Overview of current program:

My program responsibilities reflect Michigan’s diversity and currently include asparagus, snap bean, broccoli, carrot, celery, cucurbits (cucumber, melon, pumpkin, squash), onion, pepper, tomato, greenhouse vegetable transplants, ginseng and hop.  I am also involved in floriculture crops, with emphasis on poinsettia, geranium, cut flowers, bedding plants, and herbaceous potted plants.   Although my laboratory is involved in a wide variety of research projects reflective of my broad commodity responsibility, my overall goal is to reduce Michigan growers' reliance on fungicides through novel and integrated management strategies and enhanced knowledge of pathogen etiology and epidemiology.

Extension and outreach activities:

I am an Extension Specialist for the crops listed in the above paragraph.  Results of my research are regularly presented to growers at meetings such as the Great Lakes Fruit, Vegetable and Farm Market Expo and printed in extension publications such as MSU Extension News: Agriculture.

Websites of Interest:

Recent publications:

  1. Rodriguez-Salamanca, L.M., Naegele, R.P., Quesada-Ocampo, L.M., and Hausbeck, M.K.  2018.  Inoculation method, temperature, and relative humidity affect leaf and neck anthracnose, a new onion disease in Michigan.  Plant Health Progress 19:64-68.  Editor’s pick.
  2. Naegele, R.P., Granke, L.L., Fry, J., Hill, T.A., Ashrafi, H., Van Deynze, A., and Hausbeck, M.K.  2017.  Disease resistance to multiple fungal and oomycete pathogens evaluated using a recombinant inbred line population in pepper.  Phytopathology 107:1522-1531.
  3. Harlan, B.R., Granke, L., and Hausbeck, M.K.  2017.  Epidemiology and management of impatiens downy mildew in the United States.  Acta Horticulturae 1170:1051-1056.
  4. Hausbeck, M.K.  2017.  Bacterial canker: Strategies to limit losses in Michigan, USA.  Acta Horticulturae 1159:131-138.
  5. Krasnow, C.S., Wyenandt, A.A., Kline, W.L., Carey, J.B., and Hausbeck, M.K.  2017.  Evaluation of pepper root rot resistance in an integrated Phytophthora blight management program.  HortTechnology 27:408-415.
  6. Krasnow, C.S., and Hausbeck, M.K.  2017.  Influence of pH and etridiazole on Pythium spp.  HortTechnology 27:367-374.
  7. Krasnow, C.S., and Hausbeck, M.K.  2017.  Characteristics of resistance to Phytophthora root and crown rot in Cucurbita pepo L.  Plant Disease 101:659-665.
  8. Torres-Londono, G.A., Hausbeck, M., and Hao, J.  2017.  ECX: An R package for studying sensitivity of antimicrobial substances using spiral plating technology.  Plant Health Progress 17:188-194.  Editor’s pick.
  9. Krasnow, C.S., and Hausbeck, M.K.  2016.  Evaluation of winter squash and pumpkin cultivars for age-related resistance to Phytophthora capsici fruit rot.  HortScience 51:1251-1255.
  10. Jeon, S., Krasnow, C., Kirby, C., Granke, L., Hausbeck, M., and Zhang, W.  2016.  Transport and retention of Phytophthora capsici zoospores in saturated porous media.  Environmental Science & Technology 50:9270-9278.
  11. Naegele, R.P., Mitchell, J., and Hausbeck, M.K.  2016.  Genetic diversity, population structure, and heritability of fruit traits in Capsicum annuum.  PLoS ONE 10: DOI:10.1371/journal.pone.0156969.
  12. Naegele, R., Quesada-Ocampo, L.M., Kurjan, J., Saude, C., and Hausbeck, M.K.  2016.  Regional and temporal population structure of Pseudoperonospora cubensis in Michigan and Ontario.  Phytopathology 106:372-379.
  13. Quesada-Ocampo, L.M., Vargas, A.M., Naegele, R.P., Francis, D.M., and Hausbeck, M.K.  2016.  Resistance to crown and root rot caused by Phytophthora capsici in a tomato advanced backcross of Solanum habrochaites and S. lycopersicum.  Plant Disease 100:829-835.
  14. Del Castillo Múnera, J., and Hausbeck, M.K.  2016.  Characterization of Pythium species associated with greenhouse floriculture crops in Michigan.  Plant Disease 100:569-576.
  15. Rodriguez-Salamanca, L.M., Quesada-Ocampo, L.M., Naegele, R.P., and Hausbeck, M.K.  2015.  Characterization, epidemiology, and management of anthracnose in celery.  Plant Disease 99:1832-1840.
  16. Enzenbacher, T.B., Naegele, R.P., and Hausbeck, M.K.  2015.  Susceptibility of greenhouse ornamentals to Phytophthora capsici and P. tropicalis.  Plant Disease 99:1808-1815.
  17. Krasnow, C.S., and Hausbeck, M.K.  2015.  Pathogenicity of Phytophthora capsici to Brassica vegetable crops and biofumigation cover crops (Brassica spp.).  Plant Disease 99:1721-1726.
  18. Del Castillo Múnera, J., and Hausbeck, M.K.  2015.  Integrating host resistance and plant protectants to manage Pythium root rot on geranium and snapdragon.  HortScience 50:1319-1326.
  19. Cohen, Y., Van den Langenberg, K.M., Wehner, T.C., Ojiambo, P.S., Hausbeck, M., Quesada-Ocampo, L.M., Lebeda, A., Sierotzki, H., and Gisi, U.  2015.  Resurgence of Pseudoperonospora cubensis – the causal agent of cucurbit downy mildew.  Phytopathology 105:998-1012.
  20. Eang Tho, K.E, Wiriyajitsomboon, P., and Hausbeck, M.  2015.  First report of Pantoea agglomerans causing onion leaf blight and bulb rot in Michigan.  Plant Disease 99:1034.   
  21. Cespedes-Sanchez, M.C., Naegele, R.P., Kousik, C.S., and Hausbeck, M.K.  2015.  Field response of cucurbit hosts to Pseudoperonospora cubensis in Michigan.  Plant Disease 99:676-682.
  22. Holmes, G., Ojiambo, P.S., Hausbeck, M., Quesada-Ocampo, L.M., and Keinath, A.P.  2015.  Resurgence of cucurbit downy mildew in the United States: A watershed event for research and extension.  Plant Disease 99:428-441.
  23. Naegele, R.P., Tomlinson, A.J., and Hausbeck, M.K.  2015.  Evaluation of a diverse, worldwide collection of wild, cultivated and landrace peppers (Capsicum annuum) for resistance to Phytophthora fruit rot, genetic diversity and population structure. Phytopathology 105:110-118.

A complete list of publications are available on my website here.  

Authored Articles