Cody Creech

Assistant Professor of Agronomy & Horticulture, Dryland Cropping Systems Specialist

University of Nebraska-Lincoln Panhandle Research and Extension Center, 4502 Avenue I, Scottsbluff, NE 69361

Office: (308) 632-1266
Cell: (308) 770-1538
Email: ccreech2@unl.edu

EDUCATION:

  • Ph.D. Agronomy/Weed Science - 2015, University of Nebraska, Lincoln, NE. Dissertation: Herbicide application technology impacts on herbicide spray characteristics and performance.
  • M.S.: Plant Science - 2012,  Utah State University, Logan, UT. Thesis: Effects of planting date, harvest date, and environmental conditions on germination of forage kochia (Bassia prostrata) accessions.
  • B.S.: Business Operations Management (Minor: Economics) - 2008, Utah State University, Logan, UT

PRESENT AND PREVIOUS EXPERIENCE:   

May 2015 - present: Assistant Professor of Agronomy & Horticulture, Dryland Cropping Systems Specialist, University of Nebraska, Lincoln, NE        

May 2012 - 2015: Graduate Research Assistant, Department of Agronomy & Horticulture, University of Nebraska, Lincoln, NE

Jan. 2013 - May 2013: Teaching Assistant, Invasive Plants, University of Nebraska, Lincoln, NE

May 2010 - Apr. 2012: Graduate Research Assistant, Utah State University and USDA-ARS Forage and Range Research Lab, Logan, UT

May 2001 - June 2002: July 2004 - Dec. 2007: Dryland Wheat Farm Manager, Koller Corporation, Weston, ID

Jan. 1995 - May 2002: Farm Supervisor/Laborer, Silver-Sage Dairy, Cornish, UT

RESEARCH INTERESTS:

My research interests revolve around maximizing herbicide efficacy by using appropriate application technology specific to the herbicide and the target weed species. Improper herbicide applications can be less efficacious and costly and my research aims to educate applicators on the benefits of using available technologies. I also enjoy investigating the effects of crop selection and rotation, residue management, and interactions between multiple factors, on the productivity and long-term sustainability of production practices.

CURRENT RESEARCH:

I am conducting studies on herbicide application technologies that can be used to improve herbicide applications. I have shown that application parameters, namely nozzles, carrier volume, and droplet size, can impact the efficacy of herbicide applications. In addition, studies demonstrated that effective use of adjuvants on specific plant species can increase herbicide efficacy. In addition to my specific area of focus, I assist other students with their research that include herbicide drift and resistance, plant diseases, and corn water use. I also assist with industry contract work that includes regulated trials, herbicide evaluation trials, hybrid and variety evaluation under dryland and irrigated conditions, plant nutrition, fungicide evaluations, seed treatments, and planting dates. I also help maintain a long-term dryland and irrigated crop rotation and cover crop studies. 

PUBLICATIONS:

Refereed Journal Articles

1. Creech, C.F., A.O. Rodrigues, R.S. Henry, W.E. Bagley, J.D. Luck, and G.R. Kruger. Increased dicamba, fluazifop-p, glyphosate, and lactofen efficacy using adjuvants. Weed Technology (In Review).

2. Creech, C.F., J.G. Moraes, R.S. Henry, J.D. Luck, and G.R. Kruger. The impact of spray droplet size on the efficacy of 2,4-d, atrazine, chlorimuron-methyl, dicamba, glufosinate, and saflufenacil. Weed Technology (Accepted).

3. Creech, C.F., R.S. Henry, R. Werle, L.D. Sandell, A.J. Hewitt, and G.R. Kruger. Performance of post-emergent herbicides applied at different carrier volume rates. Weed Technology (Accepted).

4. Creech, C.F., R.S. Henry, B.K. Fritz, and G.R. Kruger. 2015. Influence of herbicide active ingredient, nozzle type, orifice size, spray pressure, and carrier volume rate on spray droplet size characteristics. Weed Technology 29:298-310.

5. Werle, R., J.J. Schmidt, J. Laborde, A. Tran, C.F. Creech, and J.L. Lindquist. 2014. Shattercane X ALS-tolerant sorghum F1 hybrid and shattercane interference in ALS-tolerant sorghum. J. Agric. Sci. 6:159-165.

6. Creech, C.F., B.L. Waldron, C.V. Ransom, D.R. ZoBell, and J.E. Creech. 2013. Factors influencing the field germination of forage kochia. Crop Sci. 53:2202-2208.

Dissertation

Creech, C.F. 2015. Herbicide application technology impacts on herbicide spray characteristics and performance. PhD Dissertation, University of Nebraska, Lincoln.

Thesis

Creech, C.F. 2012. Effects of planting date, harvest date, and environmental conditions on germination of forage kochia accessions. Master's Thesis, Utah State University, Logan.

Extension

1. Creech, C.F., L.D. Sandell, A.J. Jhala, G.R. Kruger. 2014. Herbicide applications, water quality, and resistance management. Proc. Soybean Management Field Days. p. 19-20.

2. Creech, C.F., W.E. Bagley, L.D. Sandell, and Greg R. Kruger. 2014. Herbicide efficacy and droplet size as influenced by adjuvants. Soybean Management Field Days Research Update. p. 20-25.

3. Creech, C.F., L.D. Sandell, and W.E. Bagley. 2013. Adjuvants and water quality. Proc. Soybean Management Field Days. p. 15-16.

4. Creech, C.F., L.D. Sandell, and G.R. Kruger. 2013. Impact of carrier rate on herbicide performance. Proc. Crop Prod. Clinics. p. 155-156.

ABSTRACTS AND PROCEEDINGS

1. Kruger, G.R., B.K Fritz, A.J. Hewitt, R.S. Henry, and C.F. Creech. 2014. Role of adjuvants and nozzles in managing drift: lessons from wind tunnel, greenhouse, and field studies.  Proc. of the 2014 Wisconsin Crop Management Conference. 53:23-30.

2. Antonio, F.S., R.S. Henry, A.O. Rodrigues, J.G. Moraes, R.Werle, C.F. Creech, and G.R. Kruger. 2013. The Effect of Adjuvants and Nozzles on Cloransulam, Glyphosate, and Dicamba Efficacy and Droplet Size. Proc. North Cent. Weed Sci. Soc. 68:27.

3. Creech, C.F., W.E. Bagley, L.D. Sandell and G.R. Kruger. 2013. Glyphosate, Fluazifop, Lactofen, and Dicamba Efficacy and Droplet Size as Influenced by Adjuvants. Proc. North Cent. Weed Sci. Soc. 68:139.

4. Creech, C.F., R. Werle, J.G. Moraes, A.O. Rodrigues, F.S. Antonio, R.S. Henry, L.D. Sandell and G.R. Kruger. 2013. Herbicide Efficacy as Influenced by Carrier Volume and Weed Size. Proc. North Cent. Weed Sci. Soc. 68:30.

5. Kruger, G.R., R.S. Henry, C.F. Creech, B.K. Fritz, C. Hoffmann, W.E. Bagley and A.J. Hewitt. Glyphosate Drift Deposition and Tomato Injury from Ground Applications. Proc. North Cent. Weed Sci. Soc. 68:141.

6. Moraes, J.G., R. Werle, F.S. Antonio, A.O. Rodrigues, C.F. Creech, R.S. Henry, and G.R. Kruger. 2013. The Impact of Droplet Size on the Efficacy of 2,4-D, Atrazine, Chlorimuron, Dicamba, Glufosinate, and Saflufenacil. Proc. North Cent. Weed Sci. Soc. 68:28.

7. Rodrigues, A.O., F.S. Antonio, J.G. Moraes, R. Werle, C.F. Creech, R.S. Henry, and G.R. Kruger. 2013. Glyphosate, Fluazifop, Lactofen, and Dicamba Efficacy as Impacted by Adjuvants and Nozzles. Proc. North Cent. Weed Sci. Soc. 68:29.

8. Werle, R., J.J. Schmidt, J. Laborde, A. Tran, C.F. Creech and J.L. Lindquist. 2013. Shattercane X ALS-Tolerant Sorghum F1 Hybrid and Shattercane Interference in ALS-Tolerant Sorghum. Proc. North Cent. Weed Sci. Soc. 68:2.

9. Creech, C.F., A. Geyer, R.S. Henry, L.D. Sandell, G.R. Kruger. 2013. Droplet Size Analysis of a Glufosinate Solution as Influenced by Carrier Volume, Nozzle, and Pressure. Proc. Weed Sci. Soc. Am. 53:81.

10. Creech, C.F., L.D. Sandell, G.R. Kruger. 2013. Soybean Herbicide Efficacy as Affected by Carrier Volume. Proc. Weed Sci. Soc. Am. 53:292.

11. Creech, C.F., A. Geyer, R.S. Henry, L.D. Sandell, G.R. Kruger. 2012. Droplet Size Analysis of a Glyphosate Solution as Influenced by Carrier Volume, Nozzle, and Pressure. Proc. North Cent. Weed Sci. Soc. 67:42.

12. Creech, C.F., L.D. Sandell, G.R. Kruger. 2012. Carrier Volume Influence on the Efficacy of Four Soybean Herbicides. Proc. North Cent. Weed Sci. Soc. 67:141.

13. Creech, C.F., B.L. Waldron, C.V. Ransom, D.R. ZoBell. 2012. Factors Influencing the Germination of Forage Kochia Accessions. Proc. West. Soc. Weed Sci. 65:18.

14. Creech, C.F., B.L. Waldron, C.V. Ransom, D.R. ZoBell. 2011. Effects of Planting Date and Climatic Conditions on Germination of Forage Kochia Accessions. Abstr. Soc. R. Manag. 65:60.

MEMBERSHIP IN PROFESSIONAL ORGANIZATIONS:

  • American Society of Agronomy
  • Crop Science Society of America
  • Soil Science Society of America
  • Weed Science Society of America
  • North Central Weed Science Society
  • Western Society of Weed Science

HONORS AND AWARDS

  • 2014 3rd Place Graduate Team, North Central Weed Science Society Collegiate Weed Contest
  • 2014 Dean's Fellowship, University of Nebraska-Lincoln
  • 2014 2nd Place Poster Contest, Projects 3-5, Western Society of Weed Science Annual Meeting
  • 2014 David H. & Anne Larrick Memorial Student Travel Grant, University of Nebraska-Lincoln
  • 2014 Henry M. Beachell Fellowship, University of Nebraska-Lincoln
  • 2013 1st Place Field Calibration Graduate Team, North Central Weed Science Society Collegiate Weed Contest
  • 2013 3rd Place Graduate Team, North Central Weed Science Society Collegiate Weed Contest
  • 2013 Dean's Fellowship, University of Nebraska-Lincoln
  • 2012 2nd Place Poster Contest, Equipment and Application Section, North Central Weed Science Society Annual Meeting
  • 2001 Eagle Scout Rank, Boy Scouts of America