A native of the Florida Tobacco Belt, Dr. Vann greatly understands the value of tobacco to the family farm. He graduated from the University of Florida in 2009 with a degree in Environmental Management in Agriculture and Natural Resources and a double minor in Plant Science and Soil Science. He completed his M.S. (2011) and Ph.D. (2015) in the Crop and Soil Sciences Department at North Carolina State University where his research and education focuses were to the agronomic management of flue-cured tobacco. In 2015, Dr. Vann was appointed to the Dr. William K. Collins Tobacco Agronomist Position in Research, Teaching, and Extension Endowment. His responsibilities include teaching tobacco production courses in both the two (AGI 195) and four year (CS 216) programs at NCSU, advising M.S. and Ph.D. level graduate students, supporting the efforts of Cooperative Extension Agents with tobacco responsibilities, directing Good Agricultural Practice (GAP) training for North Carolina tobacco farmers, and providing timely Extension information to allied industry.
Dr. Vann serves as a primary author of bi-weekly tobacco production updates entitled “From the Field-Agronomy Notes”, which are available during the production season through the NCSU Tobacco Portal. He is a member of the American Society of Agronomy, Crop Science Society of America, Soil Science Society of American, American Society for Horticultural Sciences, and the Weed Science Society of North Carolina. In addition, he serves an author or co-author of five chapters of the annual NCSU Flue-Cured Tobacco Production Guide, two chapters of the Burley and Dark Tobacco Production Guide, and three tables in the annual North Carolina Agricultural Chemicals Manual.
In collaboration with Dr. Loren Fisher, he conducts applied research in areas related to variety evaluation, plant nutrition, crop physiology, greenhouse production, weed management, sucker control, organic tobacco production, and pesticide residue quantification. Dr. Vann utilizes research facilities located in Whiteville (Border Belt Tobacco Research Station), Kinston (Cunningham Research Station), Rocky Mount (Upper Coastal Plain Research Station), Oxford (Oxford Tobacco Research Station), Clayton (Central Crops Research Station), Laurel Springs (Upper Mountain Research Station), and Waynesville (Mountain Research Station). His research efforts are focused to flue-cured and burley tobacco production.
Dr. Vann also participates in the Cooperative Centre for Scientific Research Relative to Tobacco (CORESTA), which is based in Paris, France. To date he has authored or co-authored more than 30 conference abstracts and currently serves as the Secretary to the Agrochemical Residue Field Trial Task Force. The efforts of the task force serve to generate the data necessary for the establishment of Guidance Residue Limits as they pertain to Crop Protection Agent residues detected in/on cured leaf.
Current Graduate Students:
- Matt Inman (Ph.D., co-advisor)
- Josh Henry (Ph.D., co-advisor)
- DJ Mahoney (Ph.D., committee member)
- Camden Finch (M.S., committee chair)
- Cara Pace (M.S., co-advisor)
- Madison Bell (M.S., co-advisor)
- Drew Clapp (M.S., committee chair)
- Joseph Cheek (M.S., committee member)
- Nicole Clemmons (Master of Crop Science, co-advisor)
Former Graduate Students:
- W. Tyler Whaley (M.S., 2017, committee member) – Thesis title: “Evaluation of Non-Tobacco Labeled Herbicides for Late Season Application”
- J. Hunter Mason (M.S., 2017, committee chair) – Thesis title: “Nitrogen Management for Field and Greenhouse Production of Flue-Cured Tobacco”
- Lyndon Askew (Master of Crop Science, 2016)
- Carla Cave (Master of Crop Science, 2015)
Current Research Group Members:
- Ken Barnes
- Rick Seagroves
- D. Scott Whitley
- Flue-Cured Tobacco Tolerance to S-metolachlor, Weed Technology (2020)
- Implications of chloride application rate and nitrogen fertilizer source to flue‐cured tobacco, Agronomy Journal (2020)
- Agronomic Practices Affecting Nicotine Concentration in Flue-Cured Tobacco: A Review, Agronomy Journal (2019)
- Agronomic Practices Affecting Nicotine Concentration in Flue-Cured Tobacco: A Review, AGRONOMY JOURNAL (2019)
- Lower-Leaf Removal and Nitrogen Application Programs for Flue-Cured Tobacco Production, AGRONOMY JOURNAL (2019)
- The Effect of Nozzle Selection and Carrie Volume on Weed Control in Soybean in North Carolina, CROP FORAGE & TURFGRASS MANAGEMENT (2019)
- The Influence of Postemergence Herbicide Timing and Frequency on Weed Control and Soybean Yield, CROP FORAGE & TURFGRASS MANAGEMENT (2019)
- Application Methods of Organic Poultry Feather Meal to Flue-Cured Tobacco, Agronomy Journal (2018)
- Late-Season Nitrogen Application to Tobacco Produced in Fine-Textured Soils, cftm (2018)
- Nutrient Disorders of Burley and Flue-Cured Tobacco: Part 1—Macronutrient Deficiencies, cftm (2018)