Dr. Brian Eisenback

Associate Professor of Biology
Co-Director, Bryan Center for Undergraduate Research

Dr. Brian Eisenback graduated with honors from Bryan College in 2002 and received his Ph.D. in Entomology from Virginia Tech in 2008.  His doctoral work investigated the prey-mediated effects of imidacloprid on two predators of the hemlock woolly adelgid. 
Dr. Eisenback is the co-director of the Bryan Center for Undergraduate Research, which hosts a research conference during the spring semester. See the BCUR website for more details.
Dr. Eisenback enjoys all things outdoors.  He regularly pokes around in the woods at Cumberland Trail State Park and enjoys taking photographs of anything and everything outdoors.  He enjoys playing soccer in his spare time as well as reading any book that has to do with science.  His wife Ashley is a local house-call veterinarian, and their daughter Madeline was born in February 2012.

Academic Degrees

  • Ph.D., Entomology, Virginia Tech
  • B.S. Biology, Bryan College

Professional Associations

  • Entomological Society of America
  • Sigma Xi


  • Eisenback, B. M., S. M. Salom, L. T. Kok and A. F. Lagalante. 2014. Impacts of trunk and soil injections of low rates of imidacloprid on hemlock woolly adelgid and eastern hemlock health. Journal of Economic Entomology. 107:250-258.
  • Eisenback, B. M., S. M. Salom, L. T. Kok and A. F. Lagalante. 2010.  Lethal and sublethal effects of imidacloprid on hemlock woolly adelgid (Hemiptera: Adelgidae) and two introduced predator species. Journal of Economic Entomology. 103:1222-1234.
  • Eisenback, B. M., D. E. Mullins, S. M. Salom and L. T. Kok. 2008. Evaluation of ELISA for imidacloprid detection in eastern hemlock (Tsuga canadensis) wood and needle tissues. Pest Management Science. 65:122-128.
  • Eisenback, B. M., Fidgen, J. G., Salom, S. M. and L. T. Kok.  2005.  (abstract) Effects of systemic, sublethal doses of imidacloprid on two predators of hemlock woolly adelgid, pp 278-279.  In. B. Onken and R. Reardon [eds.], Third Symposium on Hemlock Woolly Adelgid in the Eastern United States. USDA For. Serv. FHTET-2005-01.
  • Salom, S.M., L.T. Kok, J.G. Fidgen, B.M. Eisenback, 2004-2007. Impact of Systemic Insecticides on the Survival and Performance of Laricobius nigrinus, a Biological Control Agent of Hemlock Woolly Adelgid.  USDA Forest Service: Forest Health Protection: Special Technology Development Program: Project R8-2004-01.

Selected Presentations

  • Review of Joshua Mortz’s paper: Evolution, the end of human uniqueness, and the election of the imago Dei.” Journal Club presentation, Bryan College, February 2012.  Dayton, Tennessee
  • Review of J. Emmanualle et al’s paper: “Evolutionary lability of a complex life cycle in the aphid genus Brachycaudus.” Journal Club presentation, Bryan College, February 2011.  Dayton, Tennessee.
  • Review of C. L. Richards et al’s paper:  "Jack of all trades, master of some? On the role of phenotypic plasticity in plant invasions.” Journal Club presentation, Bryan College, February 2009.  Dayton, Tennessee.
  • “Imidacloprid impacts on HWA predators.”  4th Hemlock Woolly Adelgid Symposium. February 13, 2008.  Hartford, Connecticut.
  • “Potential interactions of systemic imidacloprid, hemlock woolly adelgid, and non-target predators.” Southern Forest Insect Working Conference.  July 23, 2007.  Jekyl Island, Georgia
  • “Imidacloprid:  Non-target effects and residue detection.”  Sustainable Forest Pest Management Symposium, American Chemical Society National Meeting. March 28, 2007.  Chicago, Illinois.
  • “Potential complications associated with chemical and biological control of HWA.” Invasive Alien Species Management Group. Jan. 25, 2007.  Blacksburg, Virginia.
  • “Potential non-target impacts of imidacloprid on two biological control agents of hemlock woolly adelgid.” Southern Appalachian Forest Entomologist/Pathologist Seminar.  March 9-10, 2006.   Crossnore, North Carolina.
  • “Non-target impacts of imidacloprid on two biological control agents of HWA.”  Bayer/USDA Symposium on the Use of Imidacloprid for Management of Tree Pests. February 23, 2006.  Bayer Crop Science, Research Triangle Park, North Carolina.
  • “Non-target impacts of systemic doses of imidacloprid on Laricobius nigrinus and Sasajiscymnus tsugae, two biological control agents of hemlock woolly adelgid, Adelges tsugae.” Entomological Society of America National Meeting. December 14-18, 2005.   Ft. Lauderdale, Florida.
  • “The Interaction of the Biological and Chemical Control Agents of HWA.”   Hemlock Preservation Seminar.  April 27, 2005. Asheville, North Carolina.

Research Projects under Dr. Eisenback's supervision

  • Mapping HWA and two predator beetles at Cumberland Trail State Park's Laurel-Snow segment. Drew Thompson, spring 2013. 
  • Quality service vs. efficiency: A study of patient flow through the emergency room at Rhea medical center, Dayton TN. Julian Haley and Kate Parks, fall 2013.
  • From the Shelf to the River: Tracking the Pharma-Ecology of Three Pharmaceuticals Found in the Tennessee River. Adam Ambrosetti, spring 2012
  • Tracking the Spread: A survey of eastern Hemlock trees for the presence of Hemlock Woolly Adelgid in Cumberland Trail State Park’s Laurel-Snow segment.  Curt Hays, spring 2012

Grants and Awards

  • Teacher of the Year, Bryan College. 2011-2012
  • Young Alumnus of the Year, Bryan College. 2011
  • Faculty Appreciation Award, Bryan College Admissions Office. 2010.
  • Virginia Tech Department of Entomology James Grayson scholarship for outstanding achievement of graduate studies in Entomology. April, 2008.
  • 1st Place, 2006 Entomological Society of America, Eastern Branch student poster competition.

Community Involvement

  • Entomological Society of America, 2005 - present.
  • Sigma Xi Scientific Research Society, 2007 – present
  • Orientation committee, 2010 - present
  • Bryan Center for Undergraduate Research committee, 2010 - present
  • Honors Committee, 2011 - present
  • Faculty development committee secretary, 2011 - 2012
  • Faculty advisor for Class of 2013
  • Member of league champion Faculty-Staff flag football team, 2011

Topic of Expertise

  • Entomology

Classes Taught

  • Bio 111 Introduction to Biology
  • Bio 112 Botany
  • Bio 114 Environmental Science
  • Bio 224 Microbiology (with Dr. Stephanie Hartz)
  • Bio 340 Environmental Ecology
  • Bio 470 Research Practicum
  • Bio 490 Entomology
  • Bio 499 Senior Seminar (with Dr. Martin Hartzell)
  • CT391 CLF ST: The Earth is the Lord's and Everything in it: Reflections on God and the Created World