Mary Hausbeck Ph.D.

Mary Hausbeck
Telephone: 517-355-4534

Department of Plant, Soil and Microbial Sciences

Associate Chair for Administration; University Distinguished Professor; Extension Specialist
Plant Biology Laboratories
612 Wilson Rd, Room 140
East Lansing, MI 48824

Disease management; disease predictors; diseases of vegetables, and greenhouse ornamentals, ginseng and hop.


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

General areas of expertise:

Disease management, disease predictors.


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 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.


Recent publications:

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.

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.

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.

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.

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.

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.

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.

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.

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.   

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.

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.

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.

Schwartz, H.F., Alston, D., Alwang, J., Bartolo, M., Blunt, T., Boateng, C.O., Bunn, B., Cramer, C.S., Cranshaw, W., Davidson, J., Derie, M., Doran, J., Douce, K., Drost, D., du Toit, L.J., Gao, J., Gourd, T., Gugino, B., Hammon, B., Hardin, J., Hausbeck, M., Jibilian, G., Lafferty, J., LaForest, J., McMillan, M.S., Mohan, S.K., Morrice, J., Nault, B.A., Nischwitz, C., Norton, G., Otto, K., Pappu, H.R., Petersen, M., Sampangi, R., Schroeder, B., Secor, W., Szostek, S., Tisserat, N., Uchanski, M.E., VanKirk, J., Waters, T., Wiriyajitsomboon, P., and Wohleb, C.  2014.  Onion ipmPIPE: A coordinated effort to improve the management of onion thrips and iris yellow spot virus for the U.S. onion industry.  Plant Health Progress 15(4):172-183.  APS Feature, Nov 2014.

Naegele, R.P., and Hausbeck, M.K.  2014.  Evaluation of pepper fruit for resistance to Phytophthora capsici in a recombinant inbred line population, and the correlation with fruit shape.  Plant Disease 98:885-890.

Naegele, R.P., Boyle, S., Quesada-Ocampo, L.M., and Hausbeck, M.K.  2014.  Genetic diversity, population structure, and resistance to Phytophthora capsici of a worldwide collection of eggplant germplasm.  PLoS ONE 9:e95930. doi:10.1371/journal.pone.0095930 

Granke, L.L., Morrice, J.J., and Hausbeck, M.K.  2014.  Relationships between airborne Pseudoperonospora cubensis sporangia, environmental conditions, and cucumber downy mildew severity.  Plant Disease 98:674-681.

Naegele, R.P., Ashrafi, A., Hill, T.A., Reyes Chin-Wo, S., Van Deynze, A.E., and Hausbeck, M.K.  2014.  QTL mapping of fruit rot resistance to the plant pathogen Phytophthora capsici in a recombinant inbred Capsicum annuum population.  Phytopathology 104:479-483.

Krasnow, C.S., Naegele, R.P., and Hausbeck, M.K.  2014.  Evaluation of fruit rot resistance in Cucurbita germplasm resistant to Phytophthora capsici crown rot.  HortScience 49:285-288.

Foster, J.M., Naegele, R.P., and Hausbeck, M.K.  2013.  Evaluation of eggplant rootstocks and pepper varieties for potential resistance to isolates of Phytophthora capsici from Michigan and New York.  Plant Disease 97:1037-1041.

Meyer, M.D., and Hausbeck, M.K.  2013.  Age-related resistance to Phytophthora fruit rot in ‘Dickenson Field’ processing pumpkin and ‘Golden Delicious’ winter squash fruit.  Plant Disease 97:446-452.  (Editor's Pick)

Meyer, M.D., and Hausbeck, M.K.  2013.  Using soil-applied fungicides to manage Phytophthora crown and root rot on summer squash.  Plant Disease 97:107-112.

Granke, L.L., Quesada-Ocampo, L.M., Lamour, K., and Hausbeck, M.K.   2012.   Advances in research on Phytophthora capsici on vegetable crops in the United States.   Plant Disease 96:1588-1600.

Quesada-Ocampo, L.M., Granke, L.L., Olsen, J., Gutting, H.C., Runge, F., Thines, M., Lebeda, A., and Hausbeck, M.K.  2012.  The genetic structure of Pseudoperonospora cubensis populations.  Plant Disease 96:1459-1470.

Enzenbacher, T.B., and Hausbeck, M.K.  2012.  An evaluation of cucurbits for susceptibility to cucurbitaceous and solanaceous Phytophthora capsici isolates.  Plant Disease 96:1404-1414.

Meyer, M.D., and Hausbeck, M.K.  2012.  Using cultural practices and cultivar resistance to manage Phytophthora crown rot on summer squash.  HortScience 47(8):1080-1084.

Granke, L.L., Crawford, L.E., and Hausbeck, M.K.  2012.  Factors affecting airborne concentrations of Podosphaera xanthii conidia and severity of gerbera powdery mildew.  HortScience 47(8):1068-1072.

Rodriguez-Salamanca, L.M., Enzenbacher, T.B., Byrne, J., Feng, C., Correll, J., and Hausbeck, M. 2012. First report of Colletotrichum acutatum sensu lato causing leaf curling and petiole anthracnose on celery (Apium graveolens) in Michigan. Plant Disease 96:1383.

Granke, L.L., Harlan, B.R., Naegele, R.P., and Hausbeck, M.K.  2012.  First report of root and crown rot of wasabi (Wasabia japonica Matsum.) caused by Phytophthora cryptogea in Michigan.  Plant Disease 96:1379.

Harlan, B.R., and Hausbeck, M.K.  2012.  Epidemiology and management of downy mildew, a new pathogen of coleus in the United States.  Acta Horticulturae 952:813-818.

Granke, L.L., and Hausbeck, M.K.  2012.  Relationships between airborne Pleospora herbarum and Alternaria sp. spores in no-till asparagus fields.  Acta Horticulturae 950:285-292.

Rodriguez-Salamanca, L.M., Foster, J.M., and Hausbeck, M.K.  2012.  Greenhouse and field herbicide evaluation in asparagus plants.  Acta Horticulturae 950:101-108.

Crous, P.W., Summerell, B.A., Shivas, R.G., Burgess, T.I., Decock, C.A., Dreyer, L.L., Granke, L.L., Guest, D.I., Hardey, G.E.St.J., Hausbeck, M.K., Huberli, D., Jung, T., Koukol, O., Lennox, C.L., Liew, E.C.Y., Lombard, L., McTaggart, A.R., Pryke, J.S., Roets, F., Saude, C., Shuttleworth, L.A., Stukely, M.J.C., Vanky, K., Webster, B.J., Windstam, S.T., and Groenewald, J.Z.  2012.  Phytophthora asparagi.  Fungal Plant description sheets: 107-127.  Persoonia 28:138-182.

Bi, Y., Jiang, H.H., Hausbeck, M.K., and Hao, J.J.  2012.  Inhibitory effects of essential oils for controlling Phytophthora capsici.  Plant Disease 96:797-803.

Quesada-Ocampo, L.M., Landers, N.A., Lebeis, A.C., and Hausbeck, M.K.  2012.  Genetic structure of Clavibacter michiganensis subsp. michiganensis populations in Michigan commercial tomato fields.  Plant Disease 96:788-796.

Rodriguez-Salamanca, L.M., Enzenbacher, T.B., Derie, M.L., du Toit, L.J., Feng, C., Correll, J.C., and Hausbeck, M.K.  2012.  First report of Colletotrichum coccodes causing leaf and neck anthracnose on onions (Allium cepa) in Michigan and the United States.  Plant Disease Note 96:769.

Granke, L.L., Quesada-Ocampo, L.M., and Hausbeck, M.K.  2012.  Differences in virulence of Phytophthora capsici isolates from a worldwide collection on host fruits.  European Journal of Plant Pathology 132: 281-296.

Lu, X.H., Hausbeck, M.K., Liu, X.L., and Hao, J.J. 2011. Wild type sensitivity and mutation analysis for resistance risk to fluopicolide in Phytophthora capsici. Plant Disease 95:1535-1541.

Granke, L.L., and Hausbeck, M.K.  2011.  Dynamics of airborne Pseudoperonospora cubensis sporangia in commercial cucurbit fields in Michigan.  Plant Disease 95:1392-1400.

Quesada-Ocampo, L.M., Granke, L.L., and Hausbeck, M.K.  2011.  Temporal genetic structure of Phytophthora capsici populations from a creek used for irrigation in Michigan.  Plant Disease 95:1358-1369.

Granke, L.L., Quesada-Ocampo, L.M., and Hausbeck, M.K.  2011.  Variation in phenotypic characteristics of Phytophthora capsici isolates from a worldwide collection.  Plant Disease 95:1080-1088.

Quesada-Ocampo, L.M., Granke, L.L., Mercier, M.R., Olsen, J., and Hausbeck, M.K.  2011.  Investigating the genetic structure of Phytophthora capsici populations.  Phytopathology 101:1061-1073.

Savory, E.A., Granke, L.L., Quesada-Ocampo, L.M., Varbanova, M., Hausbeck, M.K., and Day, B.  2010.  The cucurbit downy mildew pathogen Pseudoperonospora cubensis.  Molecular Plant Pathology 12:217-226.

Granke, L.L., and Hausbeck, M.K.  2010.  Effects of temperature, humidity, and wounding on development of Phytophthora rot of cucumber fruit.  Plant Disease 94:1417-1424.

Granke, L.L., and Hausbeck, M.K.  2010.  Influence of environment on airborne spore concentrations and severity of asparagus purple spot.  Plant Disease 94:843-850.

Quesada-Ocampo, L.M., and Hausbeck, M.K.  2010.  Resistance in tomato and wildrelatives to crown and root rot caused by Phytophthora capsici.  Phytopathology 100:619-627.

Foster, J.M., and Hausbeck, M.K.  2010.  Managing Phytophthora crown and root rot in bell pepper using fungicides and host resistance.  Plant Disease 94:697-702.

Granke, L.L., and Hausbeck, M.K.  2010.  Effects of temperature, concentration, age, and algaecides on Phytophthora capsici zoospore infectivity.  Plant Disease 94:54-60.

Foster, J.M., and Hausbeck, M.K.  2010.  Resistance of pepper to Phytophthora crown, root, and fruit rot is affected by isolate virulence.  Plant Disease 94:24-30.


Websites of Interest:

Hausbeck lab website

Hausbeck lab Facebook

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