About the Department
Penn State’s home for knowledge on microbial organisms in agricultural and natural ecosystems.
The Department of Plant Pathology and Environmental Microbiology engages in quality research, education, and outreach in plant pathology, mushroom science, and environmental microbiology. We study the microbiology of plants, soil, mushrooms, bats, turtles, insects, and more habitats and strive to understand the relationships between microbes, and microbes’ relationships with their hosts and the environment. We apply our fundamental research to managing diseases and solving other problems that impact food safety, crop productivity, human health, and agricultural and ecosystem sustainability.
We have a long and prestigious history of research, extension, and training in plant pathology. Trainees are attracted to our department because of our transdisciplinary approaches solving a wide array of global problems. Postdocs, graduate students, and undergraduates benefit from faculty who are involved in interdisciplinary work through Penn State’s institutes and centers. We prepare our trainees for diverse careers in academia, industry, and government through a variety of training opportunities.
Our faculty play vital roles in teaching and advising for the undergraduate Plant Sciences major, with options in Agroecology, Horticulture, and Plant Science, and advise undergraduate minor degree programs in Mushroom Science and Plant Pathology. The general education courses offered by our faculty give hundreds of students their first hands-on experience in biology and teach them to think critically, like a scientist. Seize the opportunity to make a difference as an undergraduate by working elbow to elbow with our scientific teams through our research opportunities.
Our Ph.D. program in Plant Pathology was highly ranked nationally among plant science programs by the National Research Council in 2010 and is one of the top graduate plant pathology programs in the country. We invest in individuals to help them develop into unique scientists with outstanding technical, communication, and professional skills. We provide our students with unprecedented travel, funding, and professional development experiences.
Of our many departmental strengths, none are more valuable than our culture. Students, faculty, and staff collaborate to create top-ranked educational, research, and extension opportunities in a collegial and friendly atmosphere of mutual respect.
Latest News
February 6, 2026
College of Agricultural Sciences celebrates faculty, staff of 25 years
The Penn State College of Agricultural Sciences recently celebrated 26 faculty and staff members who have been with the college for 25 years.
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February 4, 2026
Helping soil microbes kill weed seeds to aid organic farmers
To better equip organic farmers to control weeds, a team of Penn State agricultural scientists received a four-year, $935,000 grant from the U.S. Department of Agriculture to study how promoting soil microbes to infect and kill weed seeds might reduce problematic weed species.
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January 8, 2026
Predictably Unpredictable
Building resilient crops for a changing world
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January 8, 2026
A Passion for Plants
Cultivating the future of plant science
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Upcoming Events
PPEM Seminar Series: Dr. Sara May (PPEM Plant Disease Clinic)
February 16, 2026
112 Buckhout Lab
PPEM Seminar Series: Luis Fernando Flores (Roman-Reyna Lab Ph.D. Student)
February 23, 2026
112 Buckhout Lab
PPEM Seminar Series: Dr. Hua Lu (University of Maryland, Baltimore County)
March 2, 2026
112 Buckhout Lab
PPEM Seminar Series: Mankanwal Goraya (Esker and Roman-Reyna Lab Ph.D. Student)
March 16, 2026
112 Buckhout Lab
Department of Plant Pathology and Environmental Microbiology
- Office 814-865-7448
- Fax 814-863-7217