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Gail E. Ruhl

Botany and Plant Pathology 

  • Senior Plant Disease Diagnostician

Awards & Honors

(2015) 35 Years of Service. Purdue University.

(2013) 2013 Purdue Agriculture TEAM Award. Purdue College of Agriculture.

(2013) ASA Extension Excellence award for a digital decision aid. American Society of Agronomy (ASA).

(2013) Midwest Regional Turf Foundation Award of Achievement. Midwest Regional Turf Foundation.

(2012) 2012 PUCESA Team Award: Imprelis Herbicide Injury Response Team. Purdue University Cooperative Extension Specialists Associaton (PUCESA).

(2012) APS Excellence in Extension Award. American Phytopathological Society (APS).

(2010) 30 Years Service to Purdue. Provost Recognition Luncheon.

(2010) Managing Moldy Corn Extension Team. 2010 PUCESA Team Award.

(2009) Outstanding Service in Global Relations. Epsilon Sigma Phi ; Alpha Lambda Chapter;ESP Globalization Committee.

(2005) Soybean Rust Team Award. PUCESA.

Selected Publications

Ruhl, G. E., Creswell, T. C., & Wise, K. A. (2016). First Report of Tar Spot on Corn Caused by Phyllachra maydis in the United States. Plant Disease, 100(7), 1. Retrieved from

Gerber, C., & Et al (2010). Corn and Soybean Field Guide. (ID-179), 314.

Egel, D., & Creswell, T. (2010). Late Blight of Tomato and Potato. (BP-80-W), 2. Retrieved from

Keesey, M., & Et al (2010). Taking Care of Your Yard: The Homeowner's Essential Guide to Lawns, Trees, Shrubs, and Garden Flowers. (HO-236), 37pp.

Whitford, F., Martin, K., Lienhart-Cross, M., Nielsen, B., Bossaer, G., & Blessing, A. (2009). Effective Extension Presentations:Improving Communication Skills with Facts, Flair, and Fun. (PPP-81), 96.

Whitford, F., Martin, D., Lienhart-Cross, M., Nielsen, B., Bossaer, G., & Blessing, A. (2009). The EŠ—Ès of Extension Presentation. (PPP-82), 2.

Whitford, F., Martin, K., Lienhart-Cross, M., Nielsen, R., Bossaer, G., & Blessing, A. (2009). The Making of Effective Extension Publications. (PPP-81), 93. Retrieved from

Ruhl, G., Whitford, F., Weller, S., & Dana, M. (2008). Diagnosing Herbicide Injury on Garden and Landscape Plants. (ID-184-W), 4. Retrieved from

Ruhl, G. (2005). Preparing for Asian Soybean Rust. (ID-324).

Gerber, C., Nielsen, R. L., Joern, B. C., Young, B. G., Krupke, C. H., Ruhl, G., . . . Johnson, B. G. (2016). Corn and Soybean Field Guide. (ID-79), 312.

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

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