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Entomology: Personnel

Entomology Faculty

Dan L. Horton

Professor of Entomology, Departmental Extension Coordinator, College Pesticide Safety Education
Program Coordinator

Athens Campus
Ph.D., University of Arkansas, 1982

Contact Information

Address: Department of Entomology
University of Georgia
413 Biological Sciences Building
Athens, GA 30602-2603

Phone: (706) 542-9030
Fruit Insect IPM
Pesticide Saftey Education Program


I provide extension entomology programming for fruits. University fruit research and extension programs across the Southeast are heavily regionalized. I am active in this scientist- and grower-led initiative, having provided leadership in our multi-state effort since its inception.

Georgia is third nationally in blueberries, while Georgia and South Carolina are third and second in peach production. Uncompromising market demand for almost blemish-free fruit is confounded by inadequate sampling technologies and our poor understanding of pest biology. These conflicting realities mandate conservative, pesticide-intensive IPM programs. That said, growers want dependable, cost-effective IPM programs that help them meet escalating societal standards for food safety, worker safety and environmental stewardship.

Peaches are my main focus. In addition to my extension responsibilities, I participate in collaborative peach research efforts. I also serve as South Carolina's fruit entomologist and as an adjunct professor at Clemson University. Current research focuses on the peachtree/lesser peachtree borer complex, and scale. UGA's Pesticide Safety Education Program (PSEP) is responsible for the critical training, and on-going re-certification training of some 25,000 Georgias currently licensed to apply restricted-use pesticides.

Fruit Insect IPM Personnel

Name Position
Mickey Taylor Associate Pesticides Safety Education Coordinator

Current Funding
Georgia Agricultural Commodity Commission for Peaches
South Carolina Peach Council
Pesticide Industry grants

Selected Publications

Extension - 17 revised annually, examples follow:

Horton, D., Editor. 2014. Georgia Pest Management Handbook Commercial Edition. University of Georgia, Cooperative Extension Special Bulletin 28. ca. 848 pp.

Horton, D., Editor. 2014. Georgia Pest Management Handbook Homeowner Edition. University of Georgia, Cooperative Extension Special Bulletin 48. ca. 163 pp.

Horton, D., P. Brannen, B. Bellinger, D. Lockwood & D. Ritchie, editors. 2014. Southeastern peach, nectarine and plum pest management and culture guide. University of Georgia, Cooperative Extension Bulletin 1171. ca. 64 pp.

Horton, D. & T. All. 2014. Georgia fruit insecticide/miticide labels & use restrictions []

Horton, D., J. Fuest and P. Cravedi, pp. 467-504. 2008. Insects and mites, In: D.D. Layne and D. Bassi, Editors, The Peach: Botany, Production and USes. CABI, Oxfordshire, UK. 560 pp.

Horton, D. and D. Johnson, eds. 2005. Southeastern Peach Grower's Handbook. Georgia Extension Handbook No. 1. 312 pp.

Horton, D., P. Bertrand, G. Krewer, Editors. 1989. Small fruit pest management and production. UGA Extension Bulletin 1022. 116 pp.

Research (last 5 years):

Jenkins, T., T. Eaton, T. Cottrell, A. Amis, D. Horton & D. Alston. 2014. A DNA marker to track Conotrachelus nenuphar dispersal. J. Entomol. Sci. 49: 91-93.

Cottrell, T. E. & D. L. Horton. Emergence of root-feeding weevils (Coleoptera: Curculionidae) in central Georgia peach orchards. J. Entomol. Sci. 48(3):184-194.

Cottrell, T. E., T. G. Beckman & D. L. Horton. 2011. Lesser peachtree borer (Lepidoptera: Sesiidae) oviposition on Prunus germplasm. Environ. Entomol. 40(6): 1465-1470.

Cottrell, T. E. & D. L. Horton. 2011. Trap capture of brown & dusky stink bugs (Hemiptera: Pentatomidae) as affected by pheromone dosage in dispensers and dispenser source. J. Entomol. Sc. 46(2): 1-13. 

Cottrell, T. E., D. I. Shapiro-Ilan, D. L. Horton and R. F. Mizell. 2011. Laboratory virulence and orchard efficacy of entomopathogenic nematodes against the lesser peachtree borer. J. Econ. Entomol. 104(1): 47-53.

Cottrell, T. E., J. Fuest & D. L. Horton. 2008. Influence of Prunus spp., peach cultivars & bark damage on oviposition choices of lesser peachtree borer. Environ. Entomol. 37: 1508-1513.

Shapiro-Ilan, D. I., R. F. Mizell III, T. E. Cottrell, and D. L. Horton. 2008. Control of plum curculio, Conotrachelus nenuphar, with entomopathogenic nematodes: Effects of application timing, alternate host plant, and nematode strain. Biol. Cont. 44: 207-215. Online at

Jenkins, D., T. Cottrell, D. Horton, A. Hodges, and G. Hodges. 2006. Hosts of plum curculio, Conotrachelus nenuphar, in central Georgia. J. Econ. Entomol. 35(1): 48-55.

Lennon, S. F., G. L. Reighard, P. Schermerhorn, L. Podhorniak, and D. Horton. 2006. Profiling presence and concentration of eighteen pesticide residues through a commercial peach canning process. Acta Hort. 713: 409-416.



University of Georgia (UGA) College of Agricultural and Environmental Sciences (CAES)