Jan Byrne, Ph.D.

Jan Byrne

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B.S., Cornell University, Plant Science
M.S., Michigan State University, Plant Pathology
Ph.D., Michigan State University, Plant Pathology

I am a member of a multi-disciplinary diagnostic team; as such I am primarily responsible for the diagnosis of plant diseases.  Annually, our lab receives approximately 1,000 – 1,500 plant samples for plant health analysis. These samples are primarily from within Michigan and represent both commercial growers and private citizens.

Additionally, I enjoy collaborations with my department colleagues that allow us to recognize and address challenges to Michigan’s agriculture.  Through some of these collaborations we have implemented molecular-based diagnostic techniques that were developed in research programs and augment traditional methods.

As part of a federal program, I receive samples for Phytophthora ramorum testing.  While not currently present in Michigan, this is an extremely destructive pathogen and is a potential threat to Michigan’s forests and nursery industry.

Michigan State University Plant & Pest Diagnostics lab is the regional center for the North Central Plant Diagnostic Network.  As such I work closely with our network of diagnosticians to promote continued collaboration and training for diagnosticians.

Courses taught: 

  • PLP 105 Fundamentals of Applied Plant Pathology, spring semester
  • PLP 890 Independent Study in Plant Diagnostics, fall semester 

Peer-reviewed publications (most recent):

  1. McCoy, A. G., Romberg, M. K., Zaworski, E. R., Robertson, A. E., Phibbs, A., Hudelson, B. D., Smith, D. L., Beiriger, R. L., Raid, R. N., Byrne, J. M., and Chilvers, M. I. (2018). First report of tar spot on corn (Zea mays) caused by Phyllachora maydis in Florida, Iowa, Michigan, and Wisconsin. Plant Disease 102(9):1851.
  2. Rosenzweig, N., Steere, L., Kirk, W. W., Mambetova, S. Long, C., Schafer, R., Dangi, S., and Byrne J. M. (2016). First report of Dickeya dianthicola and Pectobacterium wasabiae causing aerial stem rot of potato in Michigan, USA. New Disease Reports 33:10.
  3. Demers, J. E., Byrne, J. M., and Castlebury, L. A. (2016). First report of crown rust (Puccinia coronate var. gibberosa) on blue oat grass (Helictotrichon sempervirens) in the United States. Plant Disease 100:1009.
  4. Wang, J., Jacobs, J. L., Byrne, J. M., and Chilvers, M. I. (2015). Improved diagnoses and quantification of Fusarium virguliforme, causal agent of soybean sudden death syndrome. Phytopathology 105:378-387.
  5. Rodriguez-Salamanca, L. M., Enzenbacher, T. B., Byrne, J. M., Feng, C., Correll, J. C., and Hausbeck, M. K. (2012) First report of Colletotrichum acutatum sensu lato causing leaf curling and petiole anthracnose on celery (Apium graveolens) in Michigan, Plant Disease 96(9):1383-1383.
  6. Ruhl, G., Twieg, E., DeVries, R., Levy, L., Byrne, J. M., Mollov, D., and Taylor, N. (2011). First report of bacterial wilt in Mandevilla (= Dipladenia) splendens ‘Red Riding Hood’ in the United States caused by Ralstonia solanacearum biovar 3. Plant Disease 95(5):614-614.
  7. Yun, H. Y., Rossman, A. Y., and Byrne J. M. (2009). First report of Gymnosporangium sabinae, European pear rust, on Bradford pear in Michigan. Plant Disease 93(8):841-841.
  8. Stack, J., Cardwell, K., Hammerschmidt, R., Byrne J. M., Loria, R., Snover-Clift, K., Baldwin, W., Wisler, G., Beck, H., Bostock, R., Thomas, C., and Luke, E. (2006). The National Plant Diagnostic Network. Plant Disease 90(2):128-136