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Daniel S Egel

Botany and Plant Pathology 

  • Clinical Engagement Associate Professor - SWPAC
4669 North Purdue Road
Vincennes, IN 47591

 General Information

My applied research is driven by the needs of Indiana vegetable growers. Research emphasis is split between disease etiology and disease management. Disease etiology includes recognizing disease threats to the Indiana vegetable industry and determining how the pathogen causes disease and impacts production. Research on disease management includes greenhouse and field trials to determine effective treatments to diseases that threaten production. Methods of interacting with the vegetable industry include: extension publications such as the Midwest Vegetable Production Guide for Commercial Growers as well as several bulletins on particular diseases; newsletter articles in the Vegetable Crops Hotline as well as other newsletters; presentations made to vegetable growers in Indiana and throughout the US; field visits; Youtube videos; phone calls and, increasingly, emails. 


Useful links to Egel's program include:



Selected publications:

  • Jaiswal, A.K, Mengiste, T.D., Myers, J.R., Egel, D.S., and Hoagland, L.A. 2020. Tomato domestication attenuated responsiveness to a beneficial soil microbe for plant growth promotion and induction of systemic resistance to foliar pathogens. Frontiers in Microbiology (provisionally accepted).
  • Egel, D.S., Guan, W., Creswell, T., Bonkowski, J. 2020. First report of Macrophomina phaseolina causing charcoal rot of cucumber in Indiana. Plant Dis. 104 (7) 2030
  • Egel, D.S., Hoagland, L., Davis, J., Marchino, C., Bloomquist, M. 2019. Efficacy of organic control products on common foliar diseases of tomato in the field and greenhouse. Crop Prot. 122:90-97.
  • Egel, D.S., Jones, J.B., Minsavage, G.V., Creswell, T., Ruhl, G., Maynard, E., Marchino, C. 2018. Distribution and characterization of Xanthomonas strains causing bacterial spot of tomato in Indiana. Plant Health Progress Vol. 19 (4) 319-321. 
  • Egel, D.S., Kleczewski, N.M., Mumtaz, F., and Foster, R. 2018. Acibenzolar-S-methyl is associated with yield reduction when used for management of bacterial wilt (Erwinia tracheiphila) in cantaloupe. Crop Prot. 109:136-141.
  • Egel, D.S., Santini, J., Marchino, C., Hoke, S. 2017. Evidence for secondary spread of Fusarium Wilt of watermelon in transplant trays. HortScience 52 (9) S7 (abstr.)
  • Egel, D.S., Jaiswal, A.K., Abdelrazek, S., and Hoagland, L. 2019. Managing diseases of tomato in the Midwest using organic methods. eOrganic Extension Bulletin; <>
  • Egel, D.S., 2020. Phytophthora blight of cucurbits. BP-204-W

Botany and Plant Pathology, 915 West State Street, West Lafayette, IN 47907 USA, (765) 494-4614

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