The Plant, Soil and Entomological Sciences Department offers Master of Science (M.S.) and Doctor of Philosophy (Ph.D.) degrees in Entomology, Plant Science, and Soil and Land Resources. Graduate majors in Plant Pathology receive degrees under the title of "Plant Science." Both thesis and non-thesis M.S. options are offered in Entomology, Plant Science and Soil Science. Prior to admission, special permission is required for the non-thesis M.S. major in Plant Pathology. An average of 65 graduate students are enrolled each semester. Within the following majors, students may specialize in these areas:
- Entomology: agricultural entomology, aquatic entomology, biological control of insects and weeds, insect biology, insect ecology, insect-plant interactions, insect anatomy and physiology, insect transmission of plant viruses, plant resistance to insects, systemic entomology, and integrated management. Graduate students have access to one of the Pacific Northwest's outstanding insect collections and comprehensive entomological libraries.
- Plant Science: plant breeding and genetics, plant physiology, weed science, crop management and horticulture, including ornamentals and postharvest physiology, virology, epidemiology, bacteriology, molecular biology, nematology and biological control.
- Soil and Land Resources: soil physics, biochemistry, chemistry, fertility as well as genesis, morphology and classification of soils. Soil Science faculty also advise graduate and undergraduate students in the Environmental Science Program.
Laboratory units specially equipped with controlled temperature and light programmed rooms and growth chambers are available for advanced studies in histology, anatomy, and physiology. Our state-of-the-art biotechnology facility has space to accommodate 101 faculty, staff, and students. The university has 1,145 acres located close to campus for field crops, orchards, and livestock. Excellent field and laboratory facilities are also available at research and extension centers at Aberdeen, Parma, and Twin Falls. The department has three important scientific collections: the entomology museum, the soil monolith collection and a weed herbarium. Additionally, the graduate program is closely coordinated with the Departments of Entomology, Crop and Soil Sciences, Horticulture and Landscape Architecture, and Plant Pathology at Washington State University (eight miles away), enhancing the department's offerings.