County Coordinator, Horticulture and Natural Resources Agent
South Carolina Certified Landscape Professional Program Coordinator
Horticulture Program Team, Spartanburg County Cooperative Extension Office
Office: Spartanburg, SC
Personal Website: https://www.clemson.edu/extension/scclp/index.html
M.S. Plant and Soil Science
University of Tennessee - Knoxville 2008
B.S. Agriculture with Emphasis in Plant and Soil Science
University of Tennessee - Martin 2006
South Carolina Certified Landscape Professional Online Course - Integrated Pest Management https://www.clemson.edu/extension/scclp/index.html
Master Gardener Courses - Integrated Pest Management, Basic Botany, Plant Nutrition, Soil Health, Landscape Design, and Diagnosing Plant Problems.
Home Vegetable Gardening
Garden and Ornamental Integrated Pest Management (homewoner and commercial)
Commercial Pesticide Applicator Training
Private Pesticide Applicator Training
I am a native of the mountains of eastern Tennessee. I have a B.S. in Agriculture â€“ Plant and Soil Science, and M.S. in Plant and Soil Science from the University of Tennessee. My thesis project focused on woody tree and shrub liner production. I have worked as an herbaceous perennial grower for Zelenka Nurseries, a production manager for Brussel's Bonsai Nursery, a bedding plant grower for Van Wingerden International, and an Integrated Pest Management(IPM)coordinator for Costa Farms - Costa Carolina.
My primary interests are in Integrated Pest Management (IPM), herbaceous perennial production and cultivation, annual and bedding plant production and cultivation, woody ornamental (tree and shrub) production and cultivation, plant growth regulator techniques and combinations, and minimizing ornamental production and cultivation impacts to water and other natural resources.
Extension and Outreach
South Carolina Certified Landscape Professional Program
Master Gardener Program
Pesticide Applicator / Green Industry Professional Safety Trainings
Stormwater pollution management and prevention
Integrated Pest Management for Home Gardeners
Integrated Pest Management for Green Industry Professionals.
School and Community Gardening Program https://www.clemson.edu/extension/school-gardening/index.html
Jeffers DH, Chong J. Biological Control Strategies in Integrated Pest Management (IPM) Programs. Clemson (SC): Clemson Cooperative Extension, Land-Grant Press by Clemson Extension; 2021 May. LGP 1111. https://lgpress.clemson.edu/publication/biological-control-strategies-in-integrated-pest-management-ipm-programs/.
Jeffers, A.H. (2019). Integrated Pest Management (I.P.M.) for Bagworms HGIC 2017. Cooperative Extension Service, Clemson University, Clemson, SC. https://hgic.clemson.edu/factsheet/integrated-pest-management-i-p-m-for-evergreen-bagworms/
Jeffers, A.H. (2019). Integrated Pest Management (I.P.M.) for Cabbage Looper HGIC 2016. Cooperative Extension Service, Clemson University, Clemson, SC. https://hgic.clemson.edu/factsheet/integrated-pest-management-i-p-m-for-cabbage-looper/
Jeffers, A.H. (2018). Soil Texture Analysis “The Jar Test”. HGIC 1656. Cooperative Extension Service, Clemson University, Clemson, SC. https://hgic.clemson.edu/factsheet/soil-texture-analysis-the-jar-test
Jeffers, A.H. (2018). Soil Conditioning – Establishing a Successful Gardening Foundation. HGIC 1655. Cooperative Extension Service, Clemson University, Clemson, SC. https://hgic.clemson.edu/factsheet/soil-conditioning-establishing-a-successful-gardening-foundation/
Jeffers, A.H. (2017). Citrus. HGIC 1363. Cooperative Extension Service, Clemson University, Clemson, SC. https://hgic.clemson.edu/factsheet/citrus/
Jeffers, A.H. (2017). Integrated Pest Management (I.P.M.) for Aphids. HGIC 2009. Cooperative Extension Service, Clemson University, Clemson, SC. http://www.clemson.edu/extension/hgic/pests/plant_pests/trees/hgic2009.html
Jeffers, A.H. (2017). Integrated Pest Management (I.P.M.) for Spider Mites. HGIC 2010. Cooperative Extension Service, Clemson University, Clemson, SC. http://www.clemson.edu/extension/hgic/pests/plant_pests/trees/hgic2010.html
Jeffers, A. 2017. Iberis. Clemson Extension Home & Garden Information Center Fact Sheet - HGIC 1193. 2 pp. https://www.clemson.edu/extension/hgic/plants/pdf/hgic1193.pdf
Jeffers, A. Showy Rudbeckia Are a Worthy Addition to Garden. The Post and Courier. July 23, 2017. http://www.postandcourier.com/columnists/showy-rudbeckias-are-worthy-addition-to-garden/article_7c8a6346-6cb3-11e7-ace7-cfa3c3bc3a1f.html
Jeffers, A. 2017. Rudbeckia. Clemson Extension Home & Garden Information Center Fact Sheet - HGIC 1192. 4 pp. http://www.clemson.edu/extension/hgic/plants/pdf/hgic1192.pdf
Jeffers et al. Journal of Hort-Technology â€œEstimated Nursery Liner Costs for Ornamental Woody Stockâ€ HortTechnology August 2010 Volume 20, Issue 4 ï‚·
Jeffers et al. Nursery Management Pro: â€œWell Rooted Beliefs about â€˜High-qualityâ€™ Bare-rooted Liners: A Study on Opportunityâ€. Nursery Management Pro 2010 Volume 26, Issue 34. ï‚·
Jeffers et al. Tennessee Greentimes Magazine: â€œMake Sure Your Bare-root Liners Get â€œAâ€ Grades for Qualityâ€ Tennessee Greentimes 2010 Volume 11, Issue 4
Jeffers et al. Hort-Science Magazine: â€œAssessments of bare-root liner quality and purchasing decisions made by nursery liner buyersâ€ HortScience 2009 Volume 44, Issue 3