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Ferguson College of Agriculture

Welcome

The Department of Entomology & Plant Pathology offers undergraduate Entomology majors three degree options that provide hands-on opportunities, interactive learning, and potential employment within the department, so you’ll be prepared with practical experience for nearly any entomological career. The department also offers graduate students two masters options and two doctoral options.

We have resources on our website for current and future students, people interested in our research on insects and plant diseases, and people interested in controlling pest insects and damaging plant diseases.

Departmental Information

Faculty & Staff

Meet our current and recent emeriti faculty and staff.

Alumni and Friends

Stay in touch with the department.

Plant Disease & Insect Diagnostics Lab

Get accurate diagnoses of plant diseases and insect pests and recommendations for their control.

Newsletters and News

Stay informed with department news.

Institute for Biosecurity and Microbial Forensics

A national hub of research and prioritization in plant and food-related microbial forensics and agricultural biosecurity.

About Entomology & Plant Pathology

What is Entomology?

Entomology is the discipline of insect science and is a biological science curriculum that uses insects as models to illustrate science concepts.

What does entomology involve?

Entomology involves everything from "outdoor" work in environmental issues (invasive species, emerging arthropod-borne disease), ecology, animal behavior, parasitology, insect-plant interactions to very "high tech" applications in biotechnology, molecular studies, forensics, and medical/veterinary entomology.

What is Plant Pathology?

Plant pathology is the study of the cause, forecast, spread, genetics, and management of plant diseases, and encompasses many if not all plants of economic importance including crops, trees, and horticultural/ornamental plants.

What does plant pathology involve?

Plant pathology uses knowledge, techniques, and expertise from a multitude of disciplines such as mycology, virology, bacteriology, nematology, biochemistry, bioinformatics, plant anatomy, plant physiology, genetics, microbial forensics, and epidemiology to study, understand, and manage plant diseases.

Entomology & Plant Pathology Announcements

Dormant Oil Can Give Trees a Clean Start in Spring

October 25, 2026

Learn how dormant oil helps control overwintering insects and eggs on trees and shrubs, including application timing, weather conditions and precautions for Oklahoma gardeners.

ARCH alumni Brendan Jameson shaping communities through engineering

October 15, 2026

From the classroom to the construction site, Oklahoma State University helped prepare Brendan Jameson for a career turning engineering concepts into structures that shape communities.

Leaving Plant Stems for Native Bees

October 14, 2026

Learn how leaving hollow and pithy plant stems in your garden provides nesting and overwintering habitat for native bees while supporting pollinators in Oklahoma.