Two students planting in the native grasses

Agricultural Biology Major

Love the science of living things and want to change the world of agriculture? 

At a glance

Agricultural Biology can help you solve some of the most-critical problems in food and ecosystem sustainability facing the world today. Discover the basic and applied science of plant-microbe ecosystems, impacts of insects and arthropods, and weed science. Develop a deeper understanding of how to build healthier food systems for a growing world while protecting the environment.

Degree typeBachelor of Science
FormatOn campus
Part ofCollege of Agricultural Sciences
Competitive major?No
Accelerated option?No
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A concentration allows you to specialize in a certain area within your major, offering a depth of information and hands-on experiences that you may not otherwise get. Many students in this major will concentrate in one area to work in a specific field after college, as well as find mentors and internships before they even graduate.

Students in this major must pick a concentration as a part of their studies.


Learn in greater detail how insects affect and can be used to measure ecosystem health. Learn how to manage insects in the environment and about insect biotechnology.

Weed Science

Learn how weeds spread and are managed to help reduce losses, reduce fire danger in rangelands, and to conserve water resources. Explore how biotechnological discoveries are now used to manage weeds.

Plant Pathology

Learn how microbes affect plant and ecosystem health, how they spread through the environment, and how to manage microbes on plants and in the soil with traditional methods and with biotechnology.

Some Career Options

The Agricultural Biology major is designed to not only help you explore the science of agriculture, but experience learning in the field and create connections in the industry. It’s also where you’ll explore future careers and determine who you want to be and what you want to do with your degree in hand after college. 

Related CSU graduate programs

Tour and info session options

Tours may be available as part of Admissions tours and info sessions, offered throughout the year.

For additional opportunities, please reach out to:

College of Agricultural Sciences Recruitment at

academic Info and Tips

Explore even more

Want a more in-depth look at this major? Take a look at the program website to learn more.