Dr. David J. Isenhour

David's picture

Partner, Orion Strategic Systems, LLC

Phone number: 317-775-5902
Email: Orionllc.ike@gmail.com


Adjunct Faculty


  1. B.S. in Biology, Eastern Kentucky University, 1975
  2. M.S. in Entomology, University of Missouri, 1977
  3. Ph.D. in Entomology, University of Kentucky, 1980


Professional Responsibilities and Activities:


Previous Experience:
  • April 2011 - January 2014: Dow AgroSciences LLC, Eastern Research Stations Lead, Fowler, IN. Operational responsibilities for corn and soy research stations in the eastern United States, logistical and tactical support for germplasm and traits.
  • 1982-1991: Assistant and Associate Professor of Entomology, University of Georgia, Coastal Plain Station, Tifton, GA. Research focused on biological control and host plant resistance in corn, sorghum and alfalfa.
  • 1991-1996: Entomology Coordinator, Pioneer Hi Bred International, Johnston, IA. Responsibilities included discovery protein/gene program, insect rearing, pre-commercial product screening, and serving as an information resource for Sales and Marketing.
  • 1996-1998: Directory for Trait Integration and Crop Protection, DEKALB Genetics Corporation, DeKalb, IL. Directed the trait conversion efforts and lead the Entomology and Pathology programs. Lead DEKALB's efforts in IRM.
  • June 2000 - October 2006: Lead for all ex-US operations for developing transgenic corn products.Direction for research stations in France, South Africa, Brasil, Argentina, Thailand and Mexico. Responsibilities include four multi-cycle/year corn research and trait conversion nurseries, testing programs, product advancement and serving as information resource for transgenic crops to various research and business teams within the company.Project management lead for product pipelines across all geographies and corn business teams.Lead for North American testing/evaluation for Pathology and Entomology in support of corn product development.


Selected Publications:
Wiseman, B.R. and D.J. Isenhour. 1993. Response of four commercial corn hybrids to infestations of fall armyworm and corn earworm (Lepidoptera: Noctuidae). Fla. Entomol. 76:283 292.
Riggin, T.M., K.E. Espelie, B.R. Wiseman, and D .J. Isenhour. 1993. Distribution of fall armyworm (Lepidoptera: Noctuidae) parasitoids on five corn genotypes in South Georgia. Fla. Entomol. 76:292-302.
Yang, G., K.E. Espelie, B.R. Wiseman, and D.J. Isenhour. 1993. Effect of corn foliar cuticular lipids on the movement of fall armyworm (Lepidoptera: Noctuidae) neonate larvae. Fla. Entomol. 76:302-316.
Wiseman, B.R. and D.J. Isenhour. 1993. Interaction of diet ingredients with levels of silk of a corn genotype resistant to corn earworm (Lepidoptera: Noctuidae). J. Econ. Entomol. 86:1291-1296.
Wiseman, B.R., M.E. Snook, and D.J. Isenhour. 1993. Maysin content and growth of corn earworm larvae (Lepidoptera: Noctuidae) on silks from first and second ears of corn. J. Econ. Entomol. 86:939-944.
Yang, G., B.R. Wiseman, D.J. Isenhour, and K.E. Espelie. 1993. Chemical and ultrastructural analysis of corn cuticular lipids and their effect on feeding by fall armyworm larvae. J. Chem. Ecol. 19:2055-2074.
Wiseman, B.R. and D.J. Isenhour. 1994. Resistance in sweet corn to corn earworm larvae. J. Agric. Entomol. 11:157-163.
Wiseman, B.R. and D.J. Isenhour, EDITOR J.G. du Plessis; J.B.J. van Rensburg, N.W. McLaren, B.C. Flea. 1994. Mechanisms of resistance in maize to Helicoverpa zea and Spodoptera frugiperda. Proc. 10th South African Maize Breeding Symposium, Potchefstroom, South Africa, Mar 17-19 1992.
Lu, Y.J., G.D. Kochert, D.J. Isenhour, and M.J. Adang. 1994. Molecular characterization of a strain specific repeated DNA sequence in the fall armyworm Spodoptera frugiperda (Lepidoptera: Noctuidae). Insect Mol. Biol. 3:123-130.
Lang, B.A., D.J. Moellenbeck, D.J. Isenhour, and S.J. Wall. 1996. Evaluating resistance to Cry1A(b) in European corn borer (Lepidoptera: Pyralidae) with artificial diet. Resist. Pest Mgmt. 8:29-31.

Entomology News at Nebraska

Breaking Entomological News...

  • Dr. Susan WellerDr. Susan Weller, director of the University of Nebraska State Museum and professor of Entomology, has been elected a fellow of the Entomological Society of America (ESA). The society noted Weller’s internationally-known research on arctiine moths and other Noctuoidea, and her administrative leadership in promoting entomology and science education. See the article at UNL News for more about Weller's recognition. Congratulations Susan!
  • Marilyn Weidner & GracieWe are pleased to announce that Marilyn Weidner has been named winner of the IANR Exemplary Service Award! Weidner has roles in administrative support, personnel management, data documentation and archiving, review preparation, promotion and evaluation tracking, payroll for 15 departments, and much more. Well deserved Marilyn!
  • Rogan Tokach winning scholarshipCongratulations to Rogan Tokach (Master's student co-mentored by Dr. Autumn Smart and Dr. Judy Wu-Smart) on being awarded a $10,000 national Christi Heintz Memorial Scholarship by Project Apis m!
    Well done, Rogan!
  • Steve Spomer with Beetle CollectionsSpomer nets 40-year Butterfly & Beetle Legacy. Best wishes to Steve Spomer who is retiring this December after 40 years in the Entomology Department. Spomer has identified nearly 700 insect species, including the Salt Creek Tiger Beetle, and taught countless University of Nebraska-Lincoln students. 
  • Bridget Gross with Bees.Bridget Gross, master's student in Entomology, mentored by Dr. Judy Wu-Smart and Dr. Doug Golick, was featured in the Nov. 11th IANR Student Spotlight. Bridget presented her master's degree seminar last month and graduates in December.

  • Check out the Emerald Ash Borer Resource Center, and our Emerald Ash Borer Look-Alike Insects Sheet - Be Sure Before You Treat!