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David Lee Holshouser


  • Ph.D. in Agronomy, 1993, Texas A&M University, College Station, TX
  • M.S. in Crop Science, 1987, North Carolina State University, Raleigh, NC
  • B.S. in Agronomy, 1985, North Carolina State University, Raleigh, NC


  • 2021 - Professor and Extension Agronomist, Virginia Tech
  • 2003 - 2021 - Associate Professor and Extension Agronomist, Virginia Tech
  • 1996 - 2003 - Assistant Professor and Extension Agronomist, Virginia Tech
  • 1993 - 1996 - Assistant Professor and Weed Management Specialist, University of Nebraska
  • 1987 - 1993 - Research Associate, Texas Agricultural Experiment Station
  • 1985 - 1987 - Graduate Research Assistant, North Carolina State University

»  Curriculum vita

Program Focus

I strive to improve agronomic production systems via the discovery, integration, and implementation of better crop and soil management practices that benefit agriculture and our society at large. My focus is on intensively managed soybean cropping systems, cover crops, and pest management issues.  I conduct the official soybean variety test in five regions throughout the Commonwealth and serve as educational adviser for the Virginia Soybean Association and Virginia Soybean Board.

Role of Graduate Students

Graduate students will take an active role in developing and implementing all goals and objectives of their research projects.  Students are expected to spend their summers at the Tidewater AREC in Suffolk, Va., where they will conduct the majority of their research.  They will provide assistance for additional research conducted by their major professor and others at the Tidewater AREC.  Students' research will be presented at regional and/or national meetings and they will be expected to participate in extension programming efforts.

Future Research

Current and future research projects include:

  • Increasing Yields and Profitability for Mid-Atlantic Double-crop Soybean
  • Validation of a Weather-based Advisory for Foliar Fungicide Application in Soybean
  • Agronomic and Economic Comparisons of Small Grain and Soybean Cropping Systems
  • Improved Cover Crop Systems for Virginia
  • Vegetative Growth Response and Yield with Starter Fertilizer andBradyrhizobia japonicum Inoculation in Double-cropped soybean
  • Disease incidence, yield, and fungicide effects on double-cropped soybean varieties

Additional detail on each of the above projects may be found at the Tidewater AREC Soybean Extension and Research website.

Extension Program

My extension program includes but is not limited to the following:

Extension Philosophy

I extend agronomic knowledge and understanding by: 

  1. Observing current practices and listening to concerns
  2. Improving the meaning and application of and simplifying scientific principles and research
  3. Guiding the implementation of improved production practices through education and demonstration so as to change behavior that leads to profitable and environmentally responsible agriculture


Refereed Research Publications: 18

Extension Publications: 51

Published Conference Proceedings and Abstracts: 59

Refereed Research Publications

  • Ahmed, A. and D.L. Holshouser. 2012. Controlling glyphosate-resistant Palmer amaranth in soybean with glufosinate-based and conventional herbicide programs. Online. Crop Management doi:10.1094/CM-2012-0517-01-RS.
  • Holshouser, D. and R. Taylor. 2008. Wheel traffic to narrow-row reproductive-stage soybean lowers yield. Online. Crop Management doi:10.1094/CM-2008-0317-02-RS.
  • Holshouser, D., R. Grisso, and R. Pitman. 2006. Uniform stand and narrow rows are needed for higher double-crop soybean yield.  Crop Management doi:10.1094/CM-2006-0417-01-RS.
  • Rincker, D. R. Nelson, J. Specht, D. Sleper, T. Cary, S. R. Cianzio, S. Casteel, S. Conley, P. Chen, V. Davis, C. Fox, G. Graef, C. Godsey, D.Holshouser, G. Jiang, S. K. Kantartzi, W. Kenworthy, C. Lee, R. Mian, L. McHale, S. Naeve, J. Orf, V. Poysa, W. Schapaugh, G. Shannon, R. Uniatowski, D. Wang, and B. Diers. 2014. Genetic Improvement of U.S. Soybean in Maturity Groups II, III, and IV. Crop Sci. 54:1-14 doi: 10.2135/cropsci2013.10.0665.

Extension Publications

  • Allison, J., K. Balderson, T. Clarke, B. Council, G. Chappell, C. Drake, R. Flanagan, W. Lawrence, L. Maxey-Nay, H. McCann, D. Moore, J.S. Reiter, S. Romelcyzk, L. Seiegle, G. Slade, L. Tucker, K. Wells, and D. Holshouser. 2014. Virginia on-farm soybean test plots 2013. VCE Pub. ANR-101NP, Virginia Coop. Ext., Blacksburg. Published annually.
  • Grisso R., D. Holshouser, R. Pitman. 2014. Planter/Drill Considerations for Conservation Tillage Systems. VCE Pub. 442-457 (BSE-147P). Virginia Cooperative Extension, Publication 442-457, Virginia Tech, Blacksburg, VA.
  • Holshouser, D. 2014. Double-Cropping Soybean in Virginia.  VCE Pub. CSES – 102NP, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D. 2013. Average relative yields of soybean tested in the Virginia official variety test 2010-2012. VCE Pub. AREC-35NP, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D. 2010. Days to Soybean Physiological Maturity. VCE Pub 3009-1459, Virginia Coop. Ext., Blacksburg..
  • Holshouser, D. 2009. Green stem syndrome in soybean. VCE Pub 2912-1430, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D. 2010. Suggested Soybean Seeding Rates for Virginia. VCE Pub. 3006-1447, Virginia Coop. Ext., Blacksburg..
  • Holshouser, D. 2013. Virginia Soybean Update. VCE Pub. AREC-49NP, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D., J. Eisenback, P. Phipps, and D. Moore. 2012. Soybean nematode management guide. VCE Pub. AREC-1, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D., D.A. Herbert, P. Phipps, and M. Reiter. 2012. Troubleshooting the soybean crop. VCE pub. AREC-25NP.
  • Holshouser, D., M. Ellis, N. Harris, E. Seymore. 2014. Virginia Soybean Performance Tests 2013. VCE Pub. AREC-79NP, Virginia Coop. Ext., Blacksburg. Published annually.
  • Holshouser, D., H. Wilson, and E. Hagood, Jr. 2009. Prevention and control of Palmer amaranth in soybean. VCE Pub. 2808-1006, Virginia Coop. Ext., Blacksburg.
  • Holshouser, D., H. Wilson, and A. Ahmed. 2009. Palmer amaranth control in cotton: 2008 and 2009 efficacy experiments. VCE Pub 2912-1428, Virginia Coop. Ext., Blacksburg.
  • Moore, D. and D. Holshouser. 2014. Roadside survey of continuous no-till and cover crop acres in Virginia. VCE pub. CSES-103NP.
  • Thomason, W., D. Holshouser, K. Balderson, D. Moore, E. Bowen, G.F. Chappell, B. Clark, P.H. Davis, W. Lawrence, M. Parrish, S. Reiter, S. Johnson, G. Slade, K. Wells, M. Yancey, and K. Burgess. 2011. Tips for profitable variety selection: how to use data from different types of variety trials. VCE Pub. 424-040, Virginia Coop. Ext., Blacksburg.