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Lynn Brandenberger

Lynn Brandenberger, VegetablesLynn Brandenberger, Interim Department Head and Professor of Vegetables
Department of Horticulture and Landscape Architecture
358 Agricultural Hall
Stillwater, OK 74074

Office Location: 339 Agricultural Hall
Phone: 405-744-5408
Fax: 405-744-9709

PhD:     Plant Science, University of Arkansas, Fayetteville, AR 1992
Mag:     Horticulture, Texas A&M, College Station, TX 1983
BS:       Horticulture, Oklahoma State University, Stillwater, OK  1977

Extension Activities

Lynn Brandenberger is a horticulturist with major responsibilities for serving the needs of the commercial vegetable industry in Oklahoma. He is responsible for leading extension and research programs focused on enhancing the yield, quality and safety of fresh and processed vegetables. His program addresses the cultural aspects of vegetable production, leading efforts state wide for crop cultural concerns, weed control and food safety. His research and demonstration program has been instrumental in cooperating with producers and county extension educators to determine industry needs and how to address those needs. Past and ongoing work includes: Variety evaluations, fertility, irrigation, mulches, crop enhancement compounds and population studies; Herbicide screening and rate studies in several vegetable crop groups; Studies regarding the potential for microbial contamination in fresh produce; Soil improvement through cover crop use. In addition, he has published results of his work through peer reviewed journals and written numerous applied research reports. His work has been implemented through collaborations with researchers, producers and county extension staff throughout the state and nation. Current and past projects include evaluation of vegetable cultivars and screening of new weed control materials for use in vegetable crops. Detailed results of these studies are included in the 2001-2018 Vegetable Trial Reports and are available through the Department of Horticulture at Oklahoma State University. Extensive and complete data information can be found on the following web site: Vegetables

Professional Experience

2007 to present: Professor & Horticulture Food Crops Extension & Research Specialist, Oklahoma State University.

2001-2007: Associate Professor & Horticulture Food Crops Extension & Research Specialist, Oklahoma State University.

2001: Professor & Extension Horticulturist, Texas Agricultural Extension Service, Texas A&M University System.

1992-2000: Associate Professor & Extension Horticulturist, Texas Agricultural Extension Service, Texas A&M University System.

1987-1992: Research Assistant, University of Arkansas, Departments of horticulture and plant pathology, University of Arkansas.

1984-1987: County Extension Horticulturist, Oklahoma State Cooperative Extension Service, Commanche, Caddo, Canadian and Grady Counties, Oklahoma.

1980-1984: County Extension Horticulturist, Texas Agricultural Extension Service, Smith County, Texas.

Short Courses taught

  • Oklahoma Market Gardening School taught 2008-2018: Organizer and instructor with eight other instructors for short course for fresh market producers of horticultural food crops. Course included segments on soils, irrigation, pest management, business planning, food safety, marketing, vegetable crops, fruit crops, and nut crops.
  • Food processing short course at Mongolia International University taught during three weeks of spring semester 2009. He was a member of the team that developed and taught this new course for MIU. His role was the development and delivery of part of the food safety section of the course including overall course introduction, good agriculture practices, good management practices, and several aspects of HACCP. This three credit course included 45 hours of instruction by the four member team.


  • March 2009, 2010: Consulted with Mexican agricultural producers in the state of Zacatecas. Primary activities included soil testing, consultation on soil fertility and introducing producers to basic concepts of soil fertility management. Consultations also included advice on vegetable and fruit crops and vegetable variety trials.
  • May-June 2009: Consulted with university, government officials, and development agencies regarding the development of agriculture within Mongolia. Mongolia agriculture currently consists primarily of migratory herding including cattle, sheep, and goat production. Arable farm land is available within the country for crop production and is being investigated by development agencies for leasing for crop production and for the development of production by native Mongolian agriculture.
  • May 2017: Consulted with Guatemalan agricultural producers in teh Cuilapa area. Primary activities included basic concepts of soil fertility, pesticide safety, and introduction of new planting machinery.

Recent Journal Publications

Dunn, B., Singh, H., Payton, M., and Brandenberger, L. 2018.  Fertilizer and cultivar selection of lettuce, basil, and Swiss chard for hydroponic production.  Accepted for publication by HortTechnology 9/30/18. 

Bowser, T.J., Ojwang, F., Sahs, R., Brandenberger, L. 2017.  Promotion of orange flesh sweet potato by demonstration of acceptance and food product development.  AJFS Volume 11(12) pp. 383-388.

Kahn, B.A., Rebek, E.J., Brandenberger, L.P., Reed, K., Payton, M.E.  2016.  Companion planting with white yarrow or with feverfew for squash bug, Anasa tristis (Hemiptera: Coreidae), management on summer squash. Pest Management Science.

Kahn, B.A. and Brandenberger, L. 2016. Developing protocols for fall sweet corn production in the south-central United States.  HortTechnology 26:417-425.

Brandenberger, L., Bowser, T., Zhang, H., Carrier, L., Payton, M.  2016, Evaluation of testing kits for routine soil analyses.  Discourse Journal of Agriculture and Food Sciences.  ISSN:346-7002 Vol. 4(1): 1-10.

Brandenberger, L., Kahn, B., Gray, S., Shrefler, J., Roberts, W., Taylor, M., Upson, S., Rohla, C., Laughlin, J.  2012.  Extended season leafy greens for health and wealth: A report on cool season leafy greens production trials in high tunnels. HortScience 47 (9): S35.

Stafne, E., Brandenberger, L., Carrier, L., Carroll, B.  2012.  Preemergence herbicide screening for weed control in grapes.  HortScience 47 (9): S57.