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This program is offered through Ag*IDEA, a national consortium of universities offering online programs and courses in agriculture disciplines.

Students apply and are admitted at one university; enroll in all courses at that university and graduate or receive a certificate from that university. The online courses are taught by the best faculty in the discipline from several universities within the consortium.

Each University of Nebraska campus is regionally accredited by:

The Higher Learning Commission


Ornamental, Landscape & Turf Graduate Certificate

Advance your management knowledge of turf and ornamentals.

Program Description

This online graduate certificate in Ornamental, Landscape and Turf offers a selection of courses that focus on the turf and landscape aspect of horticulture.

Core courses lend a solid science background providing the student with a greater understanding of how to manage turf and ornamental areas.

This basic knowledge is then interwoven with situation-oriented disease, weed, and insect classes to help the practitioner advance his/her management knowledge. 

Students who complete this certificate may also wish to pursue a Master of Science degree.

This certificate is designed for:

  • Horticulturists employed in Extension programs
  • Golf course superintendents
  • City parks and recreation employees
  • Landscape maintenance practitioners
  • Those working in nursery/landscape-oriented garden centers


Delivery Format

Home Campus: University of Nebraska - Lincoln

Method of Delivery: 100% Online - what's this?Program can be completed fully at a distance. Courses are asynchronous, meaning students and instructor may access content at any time and do not have to be connected to the Internet at the same time. If your program includes an internship or practicum, experiences may be completed in the student's local area.

All online courses are accessed via the Internet and use a learning management system. Technology requirements may vary by program and course, but all campuses have basic recommended requirements. High-speed Internet is required.

Interaction with professors and other students may include:

  • E-mail
  • Online discussion boards
  • Phone or video conferencing
  • Other forms of electronic and print communication

Supplemental materials for some courses may include:

  • Printed material and scanned documents
  • Digital resources accessed through university libraries
  • Videos accessed via the Internet, CDs or DVDs
  • Other media

To be successful, students taking online classes should be reasonably comfortable using a computer and the Internet. Learn more about online student tips for success.

Academic Year 2014 - 2015

Tuition rates are effective for the academic year listed. Tuition is subject to change.

Nebraska Resident:

 TuitionDistance Ed. FeeTechnology FeeLibrary FeeTotal
Per credit hour$500.00$0.00$0.00$0.00$500.00
3 credit hour$1,500.00$0.00$0.00$0.00$1,500.00


 TuitionDistance Ed. FeeTechnology FeeLibrary FeeTotal
Per credit hour$500.00$0.00$0.00$0.00$500.00
3 credit hour$1,500.00$0.00$0.00$0.00$1,500.00

The online graduate certificate in Ornamental, Landscape and Turf is a 12 credit hour academic certificate program.

Students will work with their adviser to determine course selections.

Program of Study

Core Courses 6 credit hours minimum Choose from HORT 824 or 842B or 842J; and select HORT 843K 
Elective Courses 6 credit hours minimum Select HORT 814, 843J, 844B, 880, and 888; and choose from HORT 813 or 843M; ENTO 803 or 812 or 813 or 820; and AGRO 896 or ENTO 896 or HORT 842A 


Course Name
Course #
Core Courses

Plant Nutrition and Nutrient Management

HORT 824

(AGRO 824) Macro- and micronutrient elements and their function in the growth and development of plants; the role of single elements; interaction/balances between elements and nutrient deficiency/ toxicity symptoms as they affect the physiology of the whole plant; and the relationship between crop nutrition and production/environmental considerations (e.g. yield, drought, temperature, pests).

Plant Physiology

Presents fundamental concepts underlying the science of crop physiology, including crop phenology, canopy development and light interception, photosynthesis and respiration, and dry-matter partitioning.

Water Issues in Lawn and Landscape


Examines critical water issues related to irrigation in urbanizing watersheds, with an emphasis on water quality and quantity. Factors impacting water scarcity and quality will be discussed. Course will help students understand the interrelatedness of correct irrigation practices and water quality/quantity, and will equip them with the necessary career tools to help protect water resources through application of science-based irrigation practices.

Advanced Arboriculture


This course focuses on the physiological principles and industry practices in the production, moving, care, and maintenance of ornamental trees, shrubs and ground covers. The purpose of this course is to provide students with the career tools to install and maintain woody plants. This goal will be accomplished through the review of the pertinent literature and through class exercises designed to improve students’ skills and knowledge of woody plant physiology, care and maintenance.

Elective Courses

Pest Resistance Management

AGRO 896
(RNGE 496; SOIL 496) (1-6, max 12 cr I, II, III) Prereq: 12 hrs agronomy or closely related fields and permission Individual or group projects in research, literature review, extension of course work under supervision and evaluation of a departmental faculty member.

Management of Horticultural Crop Insects

ENTO 803
Prereq: Introductory course in biology. Credit toward the degree cannot be earned in both ENTO 303 and ENTO 403/803. Biology, ecology and management of insect pests of horticultural crops such as vegetables, fruit trees, trees and shrubs, greenhouse crops, turf and ornamentals. Employs IPM strategies to maintain pests below damaging levels while minimizing the use of traditional insecticides.

Entomology and Pest Management

ENTO 812
Prereq: Introductory course in entomology. Principles and practices of managing insect pests. Pest management theory, use of sampling, evaluation, tactics, types of insect pests, and current issues.

Biological Control of Pests

ENTO 813
Prereq: 12 hrs BIOS and/or agricultural sciences. ENTO/PLPT 813 is offered spring semester of even-numbered calendar years.Principles and practices of using natural enemies and antagonists to manage the abundance of pests and reduce economic losses.

Insect Toxicology

ENTO 820

(3 cr I) Lec 3. Prereq: 12 hrs BIOS; 4 hrs organic chemistry.
Offered fall semester of even-numbered calendar years.
Principles of toxicology, insecticide classification, mode of action, metabolism and consequences of insecticide use.

Plant Resistance to Abiotic and Biotic Stressors

ENTO 896

Theory and principles underlying the development and importance of plant resistance in an integrated management program, including environmental impacts, inheritance of resistance and strategies for selecting insect resistance.

Turf & Landscape Weed Management

HORT 813
Individual or group projects in research and literature review under supervision and evaluation of a departmental faculty member.

Turf Disease Management

HORT 814
Course focuses on diseases of grasses maintained as turf, emphasizing diseases that occur in the northern Great Plains of the U.S. In addition to strategies used in managing the diseases, the biology of the causal organisms and the influence of environmental conditions are examined.

Plant Pathology

Survey of the principles and practices of plant pathology. The main and genetic elements involved in plant disease will be covered. Many of the major diseases, as well as their causes and effects, will be surveyed.

Herbicides and Weed Management Systems

The overall objective is to familiarize advanced students with the current state of knowledge on herbicide modes and mechanisms of action and recent developments by industry and universities in herbicide physiology. In this course, we will integrate plant anatomy, plant physiology, biochemistry, plant breeding, and principles of weed science as they relate to herbicide modes and mechanisms of action. This course is designed to examine how a herbicide molecule is absorbed (uptake) by plants, how it moves within plants (translocation), how it acts within plants (mode and mechanism of action), and the importance of metabolism as a means of selectivity between crops and weeds. This is not a course about weed identification, weed control recommendations, and weed management systems using biological, cultural, and chemical means.

Environmental Stress Physiology

Physiology of plant responses to environmental stresses, with emphasis on current research in selected physiological, molecular, and biochemical mechanisms for tolerance to environmental stresses such as temperature extremes, drought, salt, pathogens and other plants.

Modified Rootzones

HORT 880
Comprehensive, in-depth study of modified rootzones and their applications in the turfgrass and landscape management industries, including applications in current construction techniques. The course focuses on "created" soils for specialized situations, such as golf greens, sports fields, container plants and green roofs.

Business Management of Agriculture Enterprises

HORT 888

Students will research a specific agricultural enterprise then develop and present a business plan using materials from the primary area of interest. This course requires the completion of a shadowing assignment and the analyses of case studies.

University of Nebraska online programs have the same quality instructional faculty as on campus; individuals from a variety of backgrounds, who embody the combined qualities resulting from research experience and professional/field experience.

Dale Bremer, Ph.D., Associate Professor, Kansas State University

Gary Brewer, Ph.D., Department Head

Stephen Danielson, Ph.D., Associate Professor

Peter Dortray Ph. D., Professor at Texas Tech University

John Foster, Ph.D., Professor, University of Nebraska-Lincoln

Roch Gaussoin, Ph.D., Professor, Interim Department Head

David Lambe, MBA, Assistant Professor of Practice

Cynthia McKenney, Ph.D., Associate Professor and Chair, Texas Tech University

Deana Namuth-Covert, Ph.D., Distance Education Director

Ellen T. Paparozzi, Ph.D., Professor

Blair Siegfried, Ph.D., Professor

Paul Twigg, Ph.D., Professor

Thomas Weissling, Ph.D., Associate Professor of Practice, University of Nebraska-Lincoln

John Williamson, North Carolina State University, Associate Professor

Gary Y. Yuen, Ph.D., Professor

Guidelines for Admittance

To participate in this program, the student must have:

  • Bachelor's degree from an accredited 4-year college
  • GPA of 3.0 or higher (undergraduate and/or graduate)


Application Checklist

  1.  Apply and be admitted to Graduate Studies at the University of Nebraska–Lincoln


Application Deadlines

Rolling admissions. Applications are reviewed upon receipt of materials. Students may be allowed to enroll in courses before being admitted to the certificate program by applying as a non-degree, post-baccalaureate. 


Online Worldwide Educational Representative
: 888.622.0332

Program Contact
Name: Cheryl Griffith
Phone: 402.472.5515

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