Daniel Stephenson

Stephenson, Daniel O.
Title Associate Professor (Weed Science)
Department Dean Lee Research Station
E-mail DStephenson@agcenter.lsu.edu
Address 1 8105 Tom Bowman Drive
Alexandria, LA 71302
Phone 318-473-6590
Fax 318-473-6503

UNIVERSITY OF ARKANSAS Fayetteville, Arkansas

  • Doctorate of Philosophy
  • Crop, Soil, and Environmental Sciences – Weed Science, May 2004
  • Dissertation Title: Identification and characterization of pitted morningglory (Ipomoea lacunosa L.) ecotypes and biotypes

AUBURN UNIVERSITY Auburn, Alabama

  • Master of Science
  • Agronomy and Soils – Weed Science, March 2000
  • Thesis Title: Soil-applied fomesafen as a component in Roundup Ready

(glyphosate-tolerant) cotton weed management systems

AUBURN UNIVERSITY Auburn, Alabama

  • Bachelor of Science
  • Agronomy and Soils, March 1998

ENTERPRISE/OZARK COMMUNITY COLLEGE Enterprise, Alabama

  • Core curriculum requirements achieved, May 1995

Total: $1,310,932; Lead PI: $1,016,771

Stephenson, IV, D. O. 2016. Evaluation and determination of weed management strategies in Louisiana soybean. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $71,213

Stephenson, IV, D. O. 2016. Weed management strategies for Louisiana feed grain crops. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $15,000

Miller, D. K., D. O. Stephenson, IV, and J. Copes. 2016. Compatability of cover crops and fall-applied residual herbicides. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $39,200

Miller, D. K. and D. O. Stephenson, IV. 2016. Mitigation and control of herbicide-resistant and non-resistant weeds utilizing weed management strategies in herbicide-resistant cotton. Funded by Cotton Incorporated. $12,000

Stephenson, IV, D. O. 2015. Soybean weed management systems in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $61,000.00

Stephenson, IV, D. O. 2015. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $18,270.00

Stephenson, IV, D. O. and D. K. Miller. 2015. Weed management strategies in herbicide-resistant cotton to mitigate and control herbicide-resistant and non-resistant weeds. Funded by Cotton Incorporated. $12,000.00.

Stephenson, IV, D. O. 2015. Evaluation of BASF Engenia in DT cotton. Funded by BASF. $15,000.00.

Stephenson, IV, D. O. 2015. Balance Bean/Balance GT Soybean/Universities-Full Season Programs. Funded by Bayer CropScience. $10,000.00.

Stephenson, IV, D. O. 2015. 2015 Enlist crop demonstration. Funded by Dow AgroSciences. $6,000.00.

Stephenson, IV, D. O. 2015. Evaluation of Dow Enlist weed management programs. Funded by Dow AgroSciences. $8,000.00.

Stephenson, IV, D. O. 2015. Weed management systems in Bollgard II XtendFlex Cotton – Midsouth. Funded by Monsanto. $10,000.00.

Stephenson, IV, D. O. 2014. Soybean weed management systems in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. 55,000.00.

Stephenson, IV, D. O. 2014. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $25,200.00.

Stephenson, IV, D. O. 2014. Developing and demonstrating sustainable management of glyphosate-resistant johnsongrass. Funded by Cotton Incorporated. $22,000.00.

Stephenson, IV, D. O. 2014. Evaluation of BASF Engenia in DT cotton and soybean – 2014. Funded by BASF. $21,000.00.

Stephenson, IV, D. O. 2014. Balance Bean/Balance GT Soybean/Universities-Full Season Programs. Funded by Bayer CropScience. $10,000.00.

Stephenson, IV, D. O. 2014. 2014 Enlist crop demonstration. Funded by Dow AgroSciences. $10,000.00.

Stephenson, IV, D. O. 2014. Evaluation of Dow Enlist weed management programs. Funded by Dow AgroSciences. $8,000.00.

Stephenson, IV, D. O. 2014. Weed management systems in Bollgard II XtendFlex Cotton – Midsouth. Funded by Monsanto. $15,000.00.

Stephenson, IV, D. O. 2014. Benefit of Roundup Xtend and Xtendimax candidates for residual weed control. Funded by Monsanto. $5,000.00.

Stephenson, IV, D. O. 2014. MGI herbicide-tolerant soybean: Evaluation of mesotrione-based weed management programs. Funded by Syngenta. $12,500.00.

Stephenson, IV, D. O. 2013. Soybean weed management systems in Louisiana. Funded by the Louisiana Corn and Feed Grains Research and Promotion Board. 48,550.00.

Stephenson, IV, D. O. 2013. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $20,000.00.

Stephenson, IV, D. O., D. K. Miller, and M. E. Salassi. 2013. Weed management strategies in herbicide-resistant and non-herbicide resistant cotton. Funded by Cotton Incorporated. $25,100.00

Stephenson, IV, D. O. 2013. Developing and demonstrating sustainable management of glyphosate-resistant johnsongrass. Funded by Cotton Incorporated. $24,790.00

Stephenson, IV, D. O. 2013. Evaluation of postemergence herbicide treatments in DGT cotton. Funded by Monsanto. $12,000.00

Stephenson, IV, D. O. 2013. Evaluation of Enlist cotton and soybean. Funded by Dow AgroSciences. $20,000.00

Stephenson, IV, D. O. 2013. Evaluation of HPPD soybean. Funded by Bayer CropScience. $10,000.00

Stephenson, IV, D. O. 2013. Evaluation of Engenia in DGT cotton. Funded by BASF. $10,000.

Stephenson, IV, D. O. 2012. Soybean weed management systems in Louisiana. Funded by the Louisiana Corn and Feed Grains Research and Promotion Board. 48,550.00.

Stephenson, IV, D. O. 2012. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $20,000.00.

Stephenson, IV, D. O. and D. K. Miller. 2012. Weed management strategies in herbicide-resistant and non-herbicide resistant cotton. Funded by Cotton Incorporated. $25,100.00

Stephenson, IV, D. O. 2012. Developing and demonstrating sustainable management of glyphosate-resistant johnsongrass. Funded by Cotton Incorporated. $24,790.00

Stephenson, IV, D. O. 2012. Evaluation of postemergence herbicide treatments in DGT cotton. Funded by Monsanto. $10,000.00

Stephenson, IV, D. O. 2012. Evaluation of Enlist cotton and soybean. Funded by Dow AgroSciences. $20,000.00

Stephenson, IV, D. O. 2012. Evaluation of HPPD soybean. Funded by Bayer CropScience. $7,000.00

Stephenson, IV, D. O. 2011. Efficacy of various 2,4-D +/- residual weed management systems in DHT-cotton utilizing GF-2665 and GF-2726. Funded by Dow AgroSciences. $8,000.00.

Stephenson, IV, D. O. 2011. Efficacy of DGT cotton systems. Funded by Monsanto Company. $11,000.00.

Stephenson, IV, D.O. and D.K. Miller. 2011. Weed management strategies in herbicide-resistant and non-herbicide resistant cotton. Funded by Cotton Incorporated. $12,550.00.

Stephenson, IV, D. O. 2011. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $19,125.00.

Stephenson, IV, D. O. 2011. Soybean weed management systems in Louisiana. Funded by the Louisiana Corn and Feed Grains Research and Promotion Board. 46,363.00.

Stephenson, IV, D. O. 2010. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $20,000.00.

Stephenson, IV, D. O. 2010. Soybean weed management systems in Louisiana. Funded by the Louisiana Corn and Feed Grains Research and Promotion Board. $40,000.00.

Stephenson, IV, D. O. 2009. Weed management systems for feed grain crops in Louisiana. Funded by the Louisiana Soybean and Feed Grains Research and Promotion Board. $20,000.00.

Stephenson, IV, D. O. 2009. Soybean weed management systems in Louisiana. Funded by the Louisiana Corn and Feed Grains Research and Promotion Board. $40,000.00.

Stephenson, IV, D. O. 2009. Evaluation of acetochlor for weed management in cotton. Monsanto Company. $4,800.

Purcell, L. C., D. O. Stephenson, IV, and L. Ernest. 2006 and 2007. Ultra-short season corn hybrid evaluation. Funded by the Arkansas Corn and Grain Sorghum Board. $24,500.00.

Stephenson, IV, D. O. 2007 and 2008. Effect of alternative seeding patterns, seeding rate, and seeding configuration on yield in a cotton production system. Funded by Cotton Incorporated. $24,035.00.

Stephenson, IV, D. O. and B. J. Brecke. 2005 – 2007. Optimization of seeding rates and herbicide programs in twin-row cotton production to provide cost-effective weed management systems. Funded by Cotton Incorporated. $3, 985.00.

Stephenson, IV, D. O. 2006 and 2007. Determining the potential of furrow-irrigated rice using a 3- and 5-day irrigation schedule in a rice production system. Funded by the Arkansas Rice Research and Promotion Board. $15,000.00.

Koger, C. H., D. O. Stephenson, IV, and G. Shannon. 2007. Improve flood tolerance, sustainability, and productivity of soybean production systems of the Mid-south USA. Funded by the United Soybean Board. $59,000.00.

Stephenson, IV, D. O. 2006 and 2007. Determining the feasibility of twin-rows in an irrigated soybean production system. Funded by the Arkansas Soybean Promotion Board. $12,000.00.

Stephenson, IV, D. O., G. Lorenz, P. L. Tacker, et al. 2006. Investigating emerging production recommendations for sustainable soybean production. $57,992.00.

Tacker, P. L. and D. O. Stephenson, IV. 2006. Improving yield and yield stability for irrigated soybean. Funded by the Arkansas Soybean Promotion Board. $52,320.00.

  • LSU AgCenter Tipton Team Award, 2014
  • LSU AgCenter Tipton Team Award, 2012
  • 2003 Southern Weed Science Society Weed Contest - 4th place
  • 2002 Southern Weed Science Society Weed Contest - 14th place
  • 2001 Southern Weed Science Society Weed Contest - 9th place
  • 2003 Southern Weed Science Society Ph.D. Paper Contest - 2nd place
  • University of Arkansas Doctoral Fellowship, 2000 – 2004
  • Alpha Gamma Rho Agricultural Fraternity
  • Gamma Sigma Delta Academic Honor Fraternity
  • Martin and Exa Beck Turfgrass Scholarship
  • Dr. and Mrs. Emmett Treadwell Brunson Scholarship

  • Weed Science Society of America
  • Southern Weed Science Society

CategorySenior AuthorContributing AuthorTotal
Refereed Journal Articles112637
Semi-Technical Papers123
Abstracts of Presentations4492128
Research Bulletins and Reports314
Extension Publications312758
Total90148238

Referred Publications:

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2016. Glufosinate rate and timing for control of glyphosate-resistant rhizomatous johnsongrass (Sorghum halepense) in glufosinate-resistant soybean. Int. J. Agron. http://dx.doi.org/10.1155/2016/8040235

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2016. Glufosinate rate and timing for control of glyphosate-resistant rhizomatous johnsongrass (Sorghum halepense) in glufosinate-resistant cotton (Gossypium hirsutum). J. Cotton Sci. 20:86-93.

Dodds, D. M., C. L. Main, L. T. Barber, C. Burmester, G. D. Collins, K. Edmisten, D. O Stephenson, IV, J. R. Whitaker, and D. L. Boykin. 2015. Response of LibertyLink and WideStrike cotton to varying rates of glufosinate. Weed Technol. 29:665-674.

Meyer, C. J., J. K. Norsworthy, D. O. Stephenson, IV, M. T. Bararpour, R. L. Landry, and B. C. Woolam. 2015. Control of johnsongrass in the absence of glyphosate in Midsouth cotton production systems. Weed Technol. 29:730-739.

Stephenson, IV, D. O., J. A. Bond, R. L. Landry, and H. M. Edwards. 2015. Weed management in corn with postemergence applications of tembotrione or thiencarbazone:tembotrione. Weed Technol. 29:350-358.

Griffin, J. L., M. Bauerle, D. Stephenson, D. Miller, and J. Boudreaux. 2013. Soybean response to dicamba applied at vegetative and reproductive growth stages. Weed Technol. 27:696-703.

Riar, D. S., J. K. Norsworthy, L. E. Steckel, D. O. Stephenson, IV, and J. A. Bond. 2013. Consultant perspectives on weed management needs in Midsouthern United States cotton: A followup survey. Weed Technol. 27:778-787.

Riar, D. S., J. K, Norsworthy, L. E. Steckel, D. O. Stephenson, IV, T. W. Eubank, J. A. Bond, and R. C. Scott. 2013. Adoption of best management practices for herbicide-resistant weeds in Midsouthern United States cotton, rice, and soybean. Weed Technol. 27:788-797.

Riar, D. S., J. K. Norsworthy, L. E. Steckel, D. O. Stephenson, IV, T. W. Eubank, and R. C. Scott. 2013. Assessment of weed management practices and problem weeds in the Midsouth United States - soybean: A consultant’s perspective. Weed Technol. 27:612-622.

Stephenson, IV, D. O., J. A. Bond, R. L. Landry, and H. M. Edwards. 2013. Effect of co-applied glyphosate, pyrithiobac, pendimethalin, or S-metolachlor on cotton injury, growth, and yield. Weed Technol. 27:305-309.

Stephenson, IV, D. O. and J. A. Bond. 2012. Evaluation of thiencarbazone-methyl and isoxaflutole based herbicide programs in corn. Weed Technol. 26:37-42.

Miller, D. K., D. O. Stephenson, and D. C. Blouin. 2012. Glufosinate-resistant cotton tolerance to combinations of glufosinate with insecticides and mepiquat chloride. J. Cotton Sci. 16:125-128.

Steckel, L. E., D. Stephenson, J. Bond, S. D. Stewart, and K. A. Barnett. 2012. Evaluation of WideStrike® Flex cotton response to over-the-top glufosinate tank-mixtures. J. Cotton Sci. 16:88-95.

Stephenson, IV, D. O. and B. J. Brecke. 2011. Weed management in evenly-spaced 38- vs. 76-cm row peanut. Peanut Sci. 38:66-72.

Stephenson, IV, D. O., L. T. Barber, and F. M. Bourland. 2011. Effect of planting pattern and plant density on cotton growth, yield, and fiber quality. J. Cotton Sci. 15:243-250.

Burgos, N. R., D. O. Stephenson, IV, H. A. Agrama, L. R. Oliver, and J. A. Bond. 2011. A survey of genetic diversity of the weed species Ipomoea lacunosa L. in the USA and mid-south. Am. J. Plant Sci. 2:396-407.

Miller, D. K., R. G. Downer, and D. O. Stephenson, IV. 2010. Impact of mixing aqueous capsule suspension formulation of pendimethalin and glyphosate on growth and yield of second-generation glyphosate-resistant cotton. J. Cotton Sci. 14:181-185.

Miller, D. K., R. G. Downer, and D. O. Stephenson, IV. 2010. Interactive effects of tank-mixed application of insecticide, glyphosate, and pendimethalin on growth and yield of second-generation glyphosate-resistant cotton. J. Cotton Sci. 14:186-190.

Stephenson, IV, D. O. and B. J. Brecke. 2010. Weed Management in Single- vs. Twin-row Cotton (Gossypium hirsutum). Weed Technol. 24:275-280.

Brecke, B. J., D. O. Stephenson, IV, and J. B. Unruh. 2010. Timing of oxadiazon and quinclorac application in newly sprigged turfgrass species. Weed Technol. 24:28-32.

Nichols, R. L., J. Bond, A. S. Culpepper, D. Dodds, V. Nandula, C. L. Main, M. W. Marshall, T. C. Mueller, J. K. Norsworthy, A. Price, M. Patterson, R. C. Scott, K. L. Smith, L. E. Steckel, D. Stephenson, D. Wright, and A. C. York. 2009. Glyphosate-resistant Palmer amaranth (Amaranthus palmeri) spreads in the Southern United States (U.S.). Resistant Pest Manage. Newsletter 18(2):8-10.

Stephenson, IV, D. O., L. R. Oliver, J. A. Bond. 2007. Response of pitted morningglory (Ipomoea lacunosa) accessions to chlorimuron, fomesafen, and glyphosate. Weed Technol. 21:179-185.

Grey, C. J., D. R. Shaw, J. A. Bond, D. O. Stephenson, IV, and L. R. Oliver. 2007. Accessing the reflective characteristics of Palmer amaranth (Amaranthus palmeri) and pitted morningglory (Ipomoea lacunosa) accessions. Weed Sci. 55:293-298.

Bond, J. A., L. R. Oliver, D. O. Stephenson, IV. 2006. Response of Palmer amaranth (Amaranthus palmeri) accessions to glyphosate, fomesafen, and pyrithiobac. Weed Technol. 20:885-892.

Unruh, J. B., D. O. Stephenson, IV, B. J. Brecke and L. E. Trenholm. 2006. Tolerance of ‘Salam’ seashore paspalum (Paspalum viginatum) to postemergence herbicides. Weed Technol. 20:612-616.

Brecke, B. J. and D. O. Stephenson, IV. 2006. Weed control in cotton (Gossypium hirsutum) with postemergence applications of trifloxysulfuron-sodium. Weed Technol. 20:377-383.

Brecke, B. J. and D. O. Stephenson, IV. 2006. Weed management in single- vs. twin-row peanut (Arachis hypogaea). Weed Technol. 20:368-376.

Stephenson, IV, D. O., B. J. Brecke, and J. B. Unruh. 2006. Control of torpedograss (Panicum repens) with trifloxysulfuron-sodium in bermudagrass (Cynodon dactylon x C. transvaalensis) turf. Weed Technol. 20:351-355.

Stephenson, IV, D. O., L. R. Oliver, N. R. Burgos, and E. E. Gbur. 2006. Identification and characterization of pitted morningglory (Ipomoea lacunosa) ecotypes. Weed Sci. 54:78-86.

Brecke, B. J., D. O. Stephenson, IV, and J. B. Unruh. 2005. Purple nutsedge (Cyperus rotundus) control with herbicides and mowing. Weed Technol. 19:809-814.

Brecke, B. J., J. B. Unruh, and D. O. Stephenson, IV. 2005. Dazomet blended with greensmix as a methyl bromide replacement for golf greens. Int. Turfgrass Soc. Res. J. 10:1176-1178.

Unruh, J. B., S. D. Davis, P. F. Colbaugh, B. J. Brecke, and D. O. Stephenson, IV. 2005. Impact of Various Chemical and Nutrient Inputs and Cultural Treatments on ‘TifEagle’ Bermudagrass (Cynodon dactylon x C. transvaalensis). Int. Turfgrass Soc. Res. J. 10:455-461.

Bond, J. A., D. O. Stephenson, IV, J. W. Barnes, M. T. Bararpour, and L. R. Oliver. 2005. Diclofop-resistant Italian ryegrass (Lolium multiflorum) control in imidazolinone-tolerant wheat. Weed Technol. 19:437-442.

Stephenson, IV, D. O., J. A. Bond, E. R. Walker, M. T. Bararpour, and L. R. Oliver. 2004. Evaluation of mesotrione in Mississippi Delta corn production. Weed Technol. 18:1111-1116.

Stephenson, IV, D. O., M. G. Patterson, W. H. Faircloth, and J. N. Lunsford. 2004. Weed management with fomesafen preemergence in glyphosate-tolerant cotton. Weed Technol. 18:680-686.

Faircloth, W. H., M. G. Patterson, S. B. Belcher, J. C. Sanders, and D. O. Stephenson, IV. 2004. Field performance of glyphosate as influenced by selected adjuvants and a low volume, air-assisted sprayer. Weed Technol. 18:458-463.

Non-referred/Semi-technical publications:

Stephenson, IV, D. O., J. L. Griffin, and D. K. Miller. 2011. Battling herbicide-resistant weeds. Louisiana Agriculture 54(2):24-25.

Williams, B., D. Stephenson, and D. Miller. 2010. Difficulties with controlling henbit in Louisiana. Louisiana Agriculture 53(3):25.

Williams, B., D. Miller, and D. Stephenson. 2010. Ryegrass management in Louisiana. Louisiana Agriculture 53(3):26.

Stephenson, IV, D. O. and R. L. Landry. 2010. 2009 Weed Science Annual Report. Available at http://www.lsuagcenter.com/MCMS/RelatedFiles/%7B20... (verified 10 Mar 2010), Louisiana State University Agricultural Center, Dean Lee Research and Extension Center, Alexandria, LA.

Stephenson, IV, D. O., C. E. Wilson, Jr., P. Tacker, and S. W. Lancaster. 2008. Determining the potential of furrow-irrigated rice using a 3- and 5-day irrigation schedule in a rice-production system. In R. J. Norman, J. F. Meullent, and K. A. K. Moldenhauer (ed.) B. R. Wells Rice Research Studies – 2007. Univ. of Arkansas Agric. Exp. Stn. Res. Series 560.

Stephenson, IV, D. O., F. M. Bourland, and S. W. Lancaster. 2008. Effect of various seeding patterns and rates on cotton growth and yield. In D. M. Oosterhuis (ed.) Summaries of Arkansas Cotton Research – 2007. Univ. of Arkansas Agric. Exp. Stn. Res. Series 562.

Doherty, R. C., K. L. Smith, D. O. Stephenson, IV, J. R. Norsworthy, J. A. Bullington, and J. R. Meier. 2008. Evaluation of Reflex and Valor for preplant and preemergence control of Palmer amaranth in cotton. In D. M. Oosterhuis (ed.) Summaries of Arkansas Cotton Research – 2007. Univ. of Arkansas Agric. Exp. Stn. Res. Series 562.

Stephenson, IV, D. O., C. E. Wilson, Jr., P. Tacker, and S. W. Lancaster. 2007. Determining the potential of furrow-irrigated rice using a 3- and 5-day irrigation schedule in a rice-production system. In R. J. Norman, J. F. Meullent, and K. A. K. Moldenhauer (ed.) B. R. Wells Rice Research Studies – 2006. Univ. of Arkansas Agric. Exp. Stn. Res. Series 550.

Extension Publications:

Stephenson, D. 2016. Methods to control corn prior to replanting. Louisiana Crops Newsletter 6:3.

Stephenson, D., D. Miller, and J. Copes. 2016. Herbicide programs for managing glyphosate-resistant Palmer amaranth and common waterhemp in Louisiana corn, cotton, and soybean. Louisiana Coop. Ext. Serv. Pub. 3522.

Stephenson, IV, D. O., C. J. Graham, J. L. Griffin, D. K. Miller, R. Price, D. E. Sanders, R. E. Strahan, and E. P. Webster. 2016. 2016 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Serv. Pub. 1565.

Fromme, D. D., H. J. Mascagni, D. Stephenson, and K. Shannon. 2016. Grain sorghum hybrids for grain 2017. Louisiana Coop. Ext. Serv. Pub. 1565.

Harrison, S. A., K. Arceneaux, B. Buckley, J. Eads, R. Ferguson, J. Fluitt, D. Groth, D. Harrell, M. Kongchum, J. Leonards, J. Lofton, R. Levy, H. J. Mascagni, K. McCarthy, G. B. Padgett, P. Price III, H. Pruitt, M. Purvis, R. Regan, J. Stapp, D. Stephenson, H. P. Viator, W. Waltman, G. Williams, and C. Woddard. 2015. 2015 Small Grain Performance Trials. Lousiana Agric. Ext. Ser. Res. Summary No. 206.

Stephenson, IV, D. O., C. J. Graham, J. L. Griffin, D. K. Miller, R. Price, D. E. Sanders, R. E. Strahan, and E. P. Webster. 2015. 2015 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Serv. Pub. 1565.

Stephenson, D and D. Miller. 2014. Control weeds prior to planting corn. Louisiana Crops Newsletter 4:4B.

Stephenson, D and D. Miller. 2014. Control weeds prior to planting corn. http:www.louisianacrops.com. Accessed February 18, 2014.

Lofton, J., C. A. Hollier, B. Buckley, D. L. Harrell, H. J. Mascagni, Jr., H. J. S. A. Harrison, D. O. Stephenson, R. Levy, W. F. Waltman, and A. Cooper. 2014. 2014 Grain Sorghum Hybrids for Grain. Louisiana Coop. Ext. Ser. Pub. 2269.

Levy, R., J. A. Davis, C. A. Hollier, B. Buckley, B. J. Haggard, J. Lofton, G. B. Padgett, J. C. Stevens, Jr., D. O. Stephenson, D. L. Harrell, S. Viator. 2014. 2014 Soybean Variety Recommendations. Louisiana Coop. Ext. Ser. Pub. 2269.

Stephenson, IV, D. O., R. E. Strahan, E. P. Webster, D. E. Sanders, J. L. Griffin, D. K. Miller, C. J. Graham, and R. Price. 2014. 2014 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Serv. Pub. 1565.

Miller, D. K., D. Stephenson, and D. Kerns. 2013. 2013 Cotton Defoliation Guidelines for Louisiana. Louisiana Coop. Ext. Serv. Pub. 3194.

Stephenson, IV, D. O. 2013. Programs for control of suspected glyphosate-resistant Italian ryegrass in Louisiana. http://www.louisianacrops.com. Accessed: October 14, 2013.

Miller, D. K. and D. Stephenson. 2013. Ryegrass Management: Scout now for fall control. http://www.louisianacrops.com. Accessed: May 3, 2013.

Miller, D. K. and D. O. Stephenson, IV. 2013. The battle within the battle: Glyphosate-resistant Palmer amaranth. http://www.louisianacrops.com. Accessed: March 15,, 2013.

Stephenson, IV, D. O., R. E. Strahan, E. P. Webster, D. E. Sanders, J. L. Griffin, D. K. Miller, and C. J. Graham. 2013. 2013 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Serv. Pub. 1565.

Norton, K. D., C. Coreil, R. L. Hutchinson, B. R. Leonard, D. J. Boquet, D. O. Stephenson, IV, J. S. Kruse, and B. Padgett. 2012. Louisiana Conservation Tillage Handbook. Louisiana Coop. Ext. Serv. Pub. 3216.

Miller, D., D. Stephenson, and J. Kruse. 2012. 2012 Cotton Defoliation Guidelines for Louisiana. Louisiana Coop. Ext. Serv. Pub. 3194.

Stephenson, IV, D. O., J. Boudreaux, and J. L. Griffin. 2012. Desiccation of soybean: paraquat vs. sodium chlorate. http://www.louisianacrops.com. Accessed: August 31, 2012.

Stephenson, IV, D. O. 2012. Year of the pigweed. http://www.louisianacrops.com. Accessed: August 31, 2012.

Stephenson, IV, D. O., S. Brown, and J. Kruse. 2012. Current weather conditions may affect burndown strategies. http://www.louisianacrops.com. Accessed: August 31, 2012.

Williams, B., D. Stephenson, R. E. Strahan, J. E. Boudreaux, E. P Webster, J. Pyzner, D. K. Miller, T. Smith, D. E. Sanders, J. L. Griffin, J. K. Saichuk, R. Levy, E. Twidwell, E. Millhollon, A. D. Owings, and D. Himelrick. 2012. 2012 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Ser. Pub 1565.

Miller, D., D. Stephenson, and J. Kruse. 2011. 2011 Cotton Defoliation Guidelines for Louisiana. Louisiana Coop. Ext. Serv. Pub. 3194.

Williams, B., D. Stephenson, R. E. Strahan, J. E. Boudreaux, E. P Webster, J. Pyzner, D. K. Miller, T. Smith, D. E. Sanders, J. L. Griffin, J. K. Saichuk, R. Levy, E. Twidwell, E. Millhollon, A. D. Owings, and D. Himelrick. 2011. 2011 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Ser. Pub 1565.

Stephenson, D. 2011. Harvest aids in corn and grain sorghum. MidAmerica Farmer Grower. www.mafg.net. Accessed: July 29, 2011.

Stephenson, D. and D. Miller. 2010. Tolerance of eight MG IV and V soybean varieties to metribuzin. Louisiana Crops Newsletter 1:10A.

Stephenson, D. 2010. Harvest aids for corn and grain sorghum. Louisiana Crops Newsletter 1:7.

Stephenson, D., D. Miller, B. Williams, and R. Leonard. 2010. Recommended procedures for pesticide co-application. Louisiana Crops Newsletter 1:3.

Miller, D., D. Stephenson, and B. Williams. 2010. At-planting herbicide considerations for cotton and soybean in 2010. Louisiana Crops Newsletter 1:2.

Miller, D., D. Stephenson, B. Williams, and R. Leonard. 2010. Burndown considerations for cotton and soybean in 2010. Louisiana Crops Newsletter 1:1.

Miller, D., D. Stephenson, and J. Kruse. 2010. 2010 Cotton Defoliation Guidelines for Louisiana. Louisiana Coop. Ext. Ser. Pub. 2927.

Williams, B., D. Stephenson, R. E. Strahan, J. E. Boudreaux, E. P Webster, J. Pyzner, D. K. Miller, T. Smith, D. E. Sanders, J. L. Griffin, J. K. Saichuk, R. Levy, E. Twidwell, E. Millhollon, A. D. Owings, and D. Himelrick. 2010. 2010 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Ser. Pub 1565.

Viator, S, W. Alison, D. Harrell, K-J. Han, J. Griffin, D. Stephenson, J. Whatley, A. Hogan, M. Salassi, M. Deliberto, and T. Mark. 2010. Production of Sweet Sorghum in Louisiana as a Biofuel Feedstock Crop. Dept. of Ag. Econ. Staff Report No. 2010-03. Louisiana State Univ. Ag. Center.

Levy, R., D. Boquet, E. Clawson, D. Harrell, J Stevens, D. Stephenson, J. Hayes, A. Coco, M. Deloach, R. Ferguson, G. Williams, R. Regan, J. Kehler, J. P. Caylor, D. Strickland, and J. Leonards. 2010. 2010 Soybean Variety Yields & Production Practices. Louisiana Coop. Ext. Ser. Pub. 2269.

Stephenson, D and B. Williams. 2009. Pre-plant Weed Management in Corn. Louisiana Soybean and Feed Grain Review 7:10.

Williams, B., D. Stephenson, and D Miller. 2009. Burndown in Soybean and Feed Grains. Louisiana Soybean and Feed Grain Review 7:1.

Miller, D and D. Stephenson. 2009. Defoliation Guidelines for 2009. Louisiana Cotton Bull. 6:13

Levy, R., D. Boquet, E. Clawson, S. Moore, D. Harrell, J Stevens, D. Stephenson, J. Hayes, A. Coco, M. Deloach, R. Ferguson, G. Williams, R. Regan, J. Kehler, J. P. Caylor, D. Strickland, and J. Leonards. 2009. 2009 Soybean Variety Yields & Production Practices. Louisiana Coop. Ext. Ser. Pub. 2269.

Williams, B., D. Stephenson, R. E. Strahan, J. E. Boudreaux, E. P Webster, J. Pyzner, D. K. Miller, T. Smith, D. E. Sanders, J. L. Griffin, J. K. Saichuk, R. Levy, E. Twidwell, E. Millhollon, A. D. Owings, and D. Himelrick. 2009. 2009 Louisiana Suggested Chemical Weed Management Guide. Louisiana Coop. Ext. Ser. Pub 1545.

Stephenson, IV, D. O. 2008. Weed presence in crop following last herbicide application. Louisiana Cotton Bull. 5:15.

Stephenson, IV, D. O. 2008. Do you have resistant weeds? Part 2. Louisiana Cotton Bull. 5:13.

Stephenson, IV, D. O. 2008. Do you have resistant weeds? Part 1. Louisiana Cotton Bull. 5:12.

Stephenson, IV, D. O. 2008. Post-directed and layby herbicide recommendations. Louisiana Cotton Bull. 5:11.

Stephenson, IV, D. O. and A. M. Stewart. 2008. Weed management Issues. Louisiana Cotton Bull. 5:10.

Stephenson, IV, D. O. and A. M. Stewart. 2008. Cleaning sprayers to avoid crop injury. Louisiana Cotton Bull. 5:9.

Stewart, A. M. and D. O. Stephenson, IV. 2008. Early weed competition and concerns. Louisiana Cotton Bull. 5:8.

Stephenson, IV, D. O. 2008. Residual herbicide reminder. Louisiana Cotton Bull. 5:6.

Stephenson, IV, D. O., A. M. Stewart, P. R. Vidrine. 2008. Herbicide resistance management in Roundup Ready cotton for 2008. Louisiana State Univ. AgCenter Coop. Ext. Service, Pub. 2963, Baton Rouge, LA.

Stephenson, IV, D. O. 2008. Weed presence in crop following last herbicide application. Louisiana Soybean and Feed Grain Review 6:10.

Stephenson, IV, D. O. 2008. Do you have resistant weeds? Part 2. Louisiana Soybean and Feed Grain Review 6:7.

Stephenson, IV, D. O. 2008. Do you have resistant weeds? Part 1. Louisiana Soybean and Feed Grain Review 6:6.

Scroggs, D. M. and D. O. Stephenson, IV. 2008. Control of Roundup Ready soybeans in a replant situation. Louisiana Soybean and Feed Grain Review 6:4.

Stephenson, IV, D. O. 2005. Overseed removal: So many choices - So many options. West Florida Research and Education Center Fact Sheet. WFREC 05:02.

Unruh, J. B., B. J. Brecke, and D. O. Stephenson, IV. How to calibrate your lawn spray gun. West Florida Research and Education Center Fact Sheet. WFREC 05:01.

B. J. Brecke, J. B. Unruh, and D. O. Stephenson, IV. How to calibrate your backpack sprayer. West Florida Research and Education Center Fact Sheet. WFREC 05:02.

B. J. Brecke, J. B. Unruh, and D. O. Stephenson, IV. 1/128th of an acre calibration method. West Florida Research and Education Center Fact Sheet. WFREC 05:03.

Stephenson, IV, D. O. 2004. Crabgrass control in centipedegrass and St. Augustinegrass lawns. West Florida Research and Education Center Turfgrass Fact Sheet. WFREC 04:04.

Stephenson, IV, D. O. and N. Pool. 2004. Proper calibration is a must! West Florida Research and Education Center Turfgrass Fact Sheet. WFREC 04:05.

Stephenson, IV, D. O. 2004. Twin-row cotton: Can it reduce seeding rate and herbicide inputs. West Florida Research and Education Center Extension Fact Sheet. WFREC 04:06.

Professional Society Proceedings/Abstracts:

Batts, T. M., D. K. Miller, T. P. Smith, A. Villordon, J. L. Griffin, and D. O. Stephenson, IV. 2016. Impact of reduced rates of hormonal herbicides on sweet potato (Ipomoea batatas Lam.) growth and development. In Proc., South. Weed Sci. Soc. 69:462.

Woolam, B. C., D. O. Stephenson, IV, and S. L. Racca. 2016. Comparative growth of henbit (Lamium amplexicaule) based on emergence date. In Proc., South. Weed Sci. Soc. 69:450.

McKibben, J. C., D. O. Stephenson, IV, B. C. Woolam, and S. L. Racca. 2016. Weed control programs in grain sorghum. In Proc., South. Weed Sci. Soc. 69:271.

Abugho, S. E., R. A. Salas, Y. Mohammed, H. Guo, N. R. Burgos, and D. O. Stephenson, IV. 2016. Physiological and molecular characterization of resistant to glyphosate johnsongrass in Louisiana. In Proc., South. Weed Sci. Soc. 69:69.

McKibben, J. C., D. O. Stephenson, IV, B. C. Woolam, and S. L. Racca. 2016. Weed control programs in grain sorghum. http://wssaabstracts.com/public/38/proceedings.html. Accessed October 6, 2016.

Batts, T. M., D. K. Miller, T. P. Smith, A. Villordon, J. L. Griffin, and D. O. Stephenson, IV. 2016. Impact of reduced rates of hormonal herbicides on sweet potato (Ipomoea batatas Lam.) growth and development. http://wssaabstracts.com/public/38/proceedings.html. Accessed October 6, 2016

Woolam, B. C., D. O. Stephenson, IV, and S. L. Racca. 2016. Comparative growth of henbit (Lamium amplexicaule) based on emergence date. http://wssaabstracts.com/public/38/proceedings.html. Accessed October 6, 2016.

Abugho, S. E., R. A. Salas, Y. Mohammed, H. Guo, N. R. Burgos, and D. O. Stephenson, IV. 2016. Physiological and molecular characterization of resistant to glyphosate johnsongrass in Louisiana. http://wssaabstracts.com/public/38/proceedings.html. Accessed October 6, 2016.

Stephenson, IV, D. O., R. L. Landry, and B. C. Woolam. 2015. Evaluation of Inzen grain sorghum in Louisiana. In Weed Sci. Soc. America Abstr. http://wssaabstracts.com/public/30/abstract-25.html. Accessed September 1, 2015.

Woolam, B., D. Stephenson, R. Landry, A. Mészáros, and G. Coburn. 2015. Control of fringed redmaids (Calandrinia ciliata) in winter wheat. In Weed Sci. Soc. America Abstr. http://wssaabstracts.com/public/30/abstract-28.html. Accessed September 1, 2015.

Mueller, T. C., W. S. Curran, R. Scott, C. Sprague, D. Stephenson, D. Miller, E. Prostko, W. Grichar, J. Martin, L. Krutz, K. Bradley, L. E. Steckel, M. L. Barnards, M. D. Owen, P. A. Dotray, R. Currie, S. A. Clay, S. Z Knezevic, V. M. Davis, and R. Klein. 2015. Does previous atrazine history enhance atrazine degradation in US soils? In Weed Sci. Soc. America Abstr. http://wssaabstracts.com/public/30/abstract-265.html. Accessed September 1, 2015.

Woolam, B. C., D. O. Stephenson, IV, and R. L. Landry. 2015. Evaluation of application dates and residual herbicides for control of henbit (Lamium amplexicaule L.). In Proc., South. Weed Sci. Soc. 68:9.

McKibben, J. C., D. O. Stephenson, IV, R. L. Landry, and B. C. Woolam. 2015. Evaluation of Instigate, Realm Q, and Resolve Q for weed management in Louisiana corn. In Proc., South. Weed Sci. Soc. 68:90.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2015. Evaluation of preemergence residual herbicides for weed management in Louisiana soybean. In Proc., South. Weed Sci. Soc. 68:91.

Stephenson, IV, D. O., B. C. Woolam, R. L. Landry, A. Mészáros, and G. Coburn. 2015. Evaluation of herbicides for control of fringed redmaids (Calandrinia ciliata) in winter wheat. In Proc., South. Weed Sci. Soc. 68:92.

Hale, R. R., J. K. Norsworthy, D. Stephenson, M. T. Bararpour, C. J. Meyer. 2015. Herbicide programs for johnsongrass control in the absence of glyphosate and ACCase-inhibiting herbicides. In Proc., South. Weed Sci. Soc. 68:166.

Mueller, T. C., R. Scott, D. Stephenson, D. Miller, E. Prostko, J. Grichar, J. Krutz, L. E. Steckel, and P. Dotray. 2015. Effect of previous atrazine use on enhanced atrazine degradation in southern US soils. In Proc., South. Weed Sci. Soc. 68:169.

Stephenson, IV, D. O., J. L. Griffin, B. C. Woolam, R. L. Landry, and M. Hardwick. 2014. Effect of pyroxasulfone application rate and timing on soybean (Glycine max) growth and yield. In Weed Sci. Soc. America Abstr. 45:28.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2014. Glufosinate rate and application timing for control of johnsongrass (Sorghum halepense) in glufosinate-resistant soybean (Glycine max). In Weed Sci. Soc. America Abstr. 45:28.

Woolam, B. C., D. O. Stephenson, IV, and R. L. Landry. 2014. Comparative growth of henbit (Lamium amplexicaule) based on emergence date. .In Weed Sci. Soc. America Abstr. 45:28.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2014. Influence of glufosinate application timing on johnsongrass (Sorghum halepense) control in glufosinate-resistant cotton (Gossypium hirsutum). In Proc., South. Weed Sci. Soc. 67:78.

Dixon, T. H., D. M. Dodds, C. A. Samples, D. Z. Reynolds, J. Copeland, J. A. Bond, D. B. Reynolds, T. Barber, D. O. Stephenson, IV, and D. Miller. 2014. Evaluation of weed control programs in Enlist cotton in the Mid-South. In Proc., South. Weed Sci. Soc. 67:83.

Woolam B. C., D. O. Stephenson, IV, and R. L. Landry. 2014. Confirmation of ALS-resistant and control of rice flatsedge (Cyperus iria) in Louisiana. In Proc., South. Weed Sci. Soc. 67:146.

Barber T., J. A. Bond, D. Miller, D. B. Reynolds, L. E. Steckel, and D. O. Stephenson, IV. 2014. Weed management in Roundup Ready Xtend cotton. In Proc., South. Weed Sci. Soc. 67:164.

Edward, C. B., J. A. Bond, D. O. Stephenson, IV, T. W. Edwards, H. M. Edwards, and G. B. Montgomery. 2014. Evaluation of split applications of pyroxasulfone in corn. In Proc., South. Weed Sci. Soc. 67:175.

Foster, M. R., J. L. Griffin, D. O. Stephenson, IV, D. Miller, M. J. Bauerle, J. T. Copes, E. P. Webster. 2014. Residual activity of soil-applied soybean herbicides. In Proc., South. Weed Sci. Soc. 67:183.

Bauerle, M. J., J. L. Griffin, D. O. Stephenson, IV, M. R. Foster, and B. C. Woolam. 2014. Soybean harvest aid alternatives. In Proc., South. Weed Sci. Soc. 67:200.

Burgos, N. R., M. A. Nadeem, T. Tseng, R. Salas, D. O. Stephenson, IV, J. L. Griffin, V. Singh, and A. Lawton-Rauh. 2014. Population structure of johnsongrass on Arkansas and Louisiana. In Proc., South. Weed Sci. Soc. 67:281.

Woolam, B. C., D. O. Stephenson, IV, J. K. Norsworthy, and R. Landry. 2014. Effectiveness of Liberty with and without Select Max as influenced by johnsongrass height in Liberty Link cotton. p. 316. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2014. Sequential Liberty application timings for johnsongrass control in Liberty Link cotton. p. 316. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2013. Glyphosate-resistant johnsongrass (Sorghum halepense) control in soybean (Glycine max) with chlorimuron, clethodim, fomesafen, and glufosinate. In Proc., South. Weed Sci. Soc. 66:73.

Miller, D. K., D. Stephenson, M. M. Mathews, R. L. Landry, and B. C. Woolam. 2013. Evaluation of Anthem in Louisiana soybean production systems. In Proc., South. Weed Sci. Soc. 66:74.

Landry, R. L., D. O. Stephenson, IV, and B. C. Woolam. 2013. Glufosinate rate and timing for control of johnsongrass (Sorghum halepense) in glufosinate-resistant soybean (Glycine max). In Proc., South. Weed Sci. Soc. 66:124.

Hardwick, J., J. L. Griffin, D. Stephenson, M. J. Bauerle. 2013. Soybean response and weed control with pyroxasulfone. In Proc., South. Weed Sci. Soc. 66:136.

Copes, J. T., D. Stephenson, J. A. Bond, R. L. Landry, B. C. Woolam, and J. L. Griffin. 2013. Influence of 2,4-D application on corn growth and yield. In Proc., South. Weed Sci. Soc. 66:164.

Stephenson, IV, D. O., J. K. Norsworthy, R. L. Landry, B. C. Woolam, and B. Johnson. 2013. Effectiveness of glufosinate with and without clethodim as influenced by johnsongrass (Sorghum halepense) height in glufosinate-resistant cotton (Gossypium hirsutum). In Proc., South. Weed Sci. Soc. 66:166.

Culpepper, A. S., A. C. York, L. E. Steckel, J. A. Bond, and D. Stephenson. 2013. Palmer amaranth control significantly influenced by the time of day in which Liberty is applied. In Proc., South. Weed Sci. Soc. 66:168.

Riar, D. S., J. K. Norsworthy, L. E. Steckel, D. Stephenson, T. W. Eubank, and B. Scott. 2013. A survey of weed management practices in midsouth soybean. In Proc., South. Weed Sci. Soc. 66:186.

Woolam, B. C., D. O. Stephenson, IV, and R. L. Landry. 2013. Evaluation of fall-applied herbicide for henbit (Lamium amplexicaule) management. In Proc., South. Weed Sci. Soc. 66:207.

Eubank, T. W., D. Stephenson, J. A. Bond, B. Edwards, R. L. Landry, and B. C. Woolam. 2013. Efficacy of fall- and spring-applied herbicides for control of henbit (Lamium amplexicaule). In Proc., South. Weed Sci. Soc. 66:208.

Norsworthy, J. K., B. Scott, D. Stephenson, D. B. Reynolds, M Peterson, and G. Kruger. 2013. Volatility and off-target movement of formulations containing Colex-D technology. In Proc., South. Weed Sci. Soc. 66:225.

Stephenson, IV, D. O. 2013. Weed management in the absence of a crop. Beltwide Cotton Conf. Consultants Conference. p. 4. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Woolam, B. C., D. O. Stephenson, IV, R. L. Landry. 2013. Weed management in conventional cotton in Louisiana. p. 316. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Landry, R. L., D. O. Stephenson, IV, J. K. Norsworthy, B. C. Woolam, and D. B. Johnson. 2013. Glyphosate-resistant johnsongrass (Sorghum halepense) control with Envoke, Staple LX, and Select Max in cotton. p. 318. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN. (In press).

Johnson, D. B., J. K. Norsworthy, H. D. Bell, D. O. Stephenson, IV, D. K. Miller, and J. A. Bond. 2013. Herbicide programs in Glytol-LibertyLink cotton. p. 662. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Norsworthy, J. K., D. O. Stephenson, IV, D. K. Miller, L. E. Steckel, J. Bond, D. M. Dodds, D. B. Reynolds, and R. B. Lassiter. 2013. Effect of Enlist Duo on Glyphosate Resistant Palmer amaranth: A summary of Enlist Duo. p. 1041-1042. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, D. and R. L. Landry. 2012. Henbit (Lamium amplexicaule) management with fall-applied herbicides. In Proc., South. Weed Sci. Soc. 65:51.

Miller, D. K., D. Stephenson, M. S. Mathews. 2012. Evaluation of Fierce for controlling weeds in Louisiana soybean. In Proc., South. Weed Sci. Soc. 65:78.

Landry, R. L. and D. O. Stephenson, IV. 2012. Glufosinate rate and timing for control of glyphosate-resistant johnsongrass (Sorghum halepense) in glufosinate-resistant soybean (Glycine max). In Proc., South. Weed Sci. Soc. 65:109.

Stephenson, D., D. K. Miller, J. A. Bond, R. L. Landry, and M. S. Mathews. 2012. Utility of pyroxasulfone in Mid-south corn and soybean. In Proc., South. Weed Sci. Soc. 65:111.

Rasheed, A., N. R. Burgos, T. Tseng, R. A. Salas, E. A. Alcobar, and D. Stephenson. 2012. Genetic divergence of herbicide-resistant and susceptible-Sorghum halepense populations. In Proc., South. Weed Sci. Soc. 65:170.

Samples, C. A., D. M. Dodds, L. T. Barber, C. Burmaster, G. D. Collins, K. L. Edmisten, J. Kruse, D. O. Stephenson, IV, and C. L. Main. 2012. Effects of glufosinate application rate and timing on cotton growth, development, and yield. p. 87. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Miller, D. K., D. O. Stephenson, IV, and M. S. Mathews. 2012. Weed management and crop tolerance with Warrant in Louisiana cotton. p. 1514. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O. 2012. New products, technologies, and concerns in weed control. p. 3. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., J. A. Bond, and D. K. Miller. 2012. Evalution of Glytol/Liberty Link cotton in the Midsouth. p. 1522. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Dodds, D. M., L. T. Barber, C. Burmaster, G. D. Collins, K. L. Edmisten, M. A. Jones, J. Kruse, D. O. Stephenson, IV, and C. L. Main. 2012. Effect of glufosinate application on Widestrike and Liberty Link cotton varieties. p. 1537. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Norsworthy, J. K., K. L. Smith, R. C. Scott, L. Steckel, J. A. Bond, T. W. Eubank, D. Stephenson. 2012. Midsouth weed management survey with emphasis on Palmer amaranth. p. 1544. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Brecke, B. J., D. Partridge-Telenko, and D. O. Stephenson, IV. 2012. Effect of tillage and herbicide input on Benghal dayflower (Commelina benghalensis) in cotton. p. 1545. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Bauerle, M. J., J. L. Griffin, D. O. Stephenson, D. K. Miller, and J. M. Boudreaux. 2011. Soybean response to off-target movement of dicamba applied in sugarcane. Am. Soc. Sugarcane Technol. 31:54.

Stephenson, IV, D. O., D. K. Miller, R. L. Landry, and M. S. Mathews. 2011. Influence of adjuvants when co-applied with saflufenacil and glyphosate on burndown weed control. In Proc., South. Weed Sci. Soc. 64:247.

Stephenson, IV, D. O., R. L. Landry, and B. C. Woolam. 2011. Glyphosate-resistant Palmer amaranth in Louisiana. In Proc., South. Weed Sci. Soc. 64:246.

Stephenson, IV, D. O., J. L. Griffin, and N. R. Burgos. 2011. Glyphosate resistant johnsongrass monitoring and management. In Proc., South. Weed Sci. Soc. 64:226.

Bauerle, M. J., J. L. Griffin, D. O. Stephenson, D. K. Miller, and J. M. Boudreaux. 2011. Soybean response to dicamba simulated drift at vegetative and reproductive growth stages. In Proc., South. Weed Sci. Soc. 64:51.

Stephenson, IV, D. O., R. L. Landry, and S. B. Blanche. 2011. Effect of planting pattern on sequential application timings of glufosinate in glufosinate-resistant soybean. In Proc., South. Weed Sci. Soc. 64:31.

Stephenson, IV, D. O., J. A. Bond, J. Seibert, L. Walton. 2011. Control of various weeds with 2,4-D alone or co-applied with glufosinate or glyphosate. p. 1546. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., R. L. Landry, and B. C. Woolam. 2011. Glyphosate-resistant Palmer amaranth in Louisiana. p. 1520. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Steckel, L, J. Bond, and D. Stephenson. 2011. Tolerance of WideStrike cotton to Ignite tank-mix applications. p. 1540-1541. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., D. K. Miller, J. L. Griffin, R. L. Landry, M. M. Mathews, and J. M. Boudreaux. 2010. Comparison of various herbicides co-applied with glufosinate for weed management in glufosinate-resistant soybean. In Proc., South. Weed Sci. Soc. 63:29.

Stephenson, IV, D. O. and R. L. Landry. 2010. Soybean weed management with premix combinations of glyphosate, fomesafen, and S-metolachlor. In Proc., South. Weed Sci. Soc. 63.27.

Stephenson, IV. D. O., D. K. Miller, J. L. Griffin, R. L. Landry, M. M. Mathews, and J. M. Boudreaux. 2010. Glufosinate and glyphosate application timings in glufosinate- and glyphosate-resistant soybean. In Proc., South. Weed Sci. Soc. 63:126.

Bond, J. A., K. L. Smith, J. K. Norsworthy, D. O. Stephenson, IV, L. E. Steckel, J. B. Manning, and J. B. McDuffie. 2010. Regional research addressing glyphosate-resistant Palmer amaranth control in cotton. In Proc., South. Weed Sci. Soc. 63:91.

Manning, J. K., J. A. Bond, L. E. Steckel, D. O. Stephenson, J. B. McDuffie, and R. L. Landry. 2010. Corn tolerance to Resolve Q. In Proc., South. Weed Sci. Soc. 63:30.

Manning, J. K., J. A. Bond, D. O. Stephenson, J. B. McDuffie, and R. L. Landry. 2010. Laudis and Capreno tank-mixtures in Midsouth corn. In Proc., South. Weed Sci. Soc. 63:117.

Manning, J. K., D. O. Stephenson, J. A. Bond, J. B. McDuffie, R. L. Landry, and J. B. Guice. 2010. Saflufenacil burndown programs in no-till cotton. In Proc., South. Weed Sci. Soc. 63:28.

McDuffie, J. B., J. A. Bond, D. O. Stephenson, D. K. Miller, R. L. Landry, and J. K. Manning. 2010. Pyrithiobac plus residual herbicide tank-mixtures. In Proc., South. Weed Sci. Soc. 63:26.

Miller, D. K., J. L. Griffin, D. O. Stephenson, J. Boudreaux, and M. M. Mathews. 2010. Reduced rate dicamba effects on soybean growth and yield. In Proc., South. Weed Sci. Soc. 63:22.

Miller, D. K., D. O. Stephenson, and M. M. Mathews. 2010. Evaluation of Sharpen for preplant weed control in soybean. In Proc., South. Weed Sci. Soc. 63:20.

Stephenson, IV, D. O., J. A. Bond, D. K. Miller, E. P. Millhollon, R. L. Landry, J. K. Manning, and J. B. McDuffie. 2010. Effect of pendimethalin and S-metolachlor co-applied with glyphosate and pyrithiobac on cotton growth and yield. p. 1559. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Bond, J. A., K. L. Smith, D. O. Stephenson, IV, J. K. Norsworthy, L. E. Steckel, J. B. Manning, and J. B. McDuffie. 2010. Managing glyphosate-resistant Palmer amaranth with residual herbicides in Midsouth cotton. p. 1533. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Barber, T., F. M. Bourland, D. O. Stephenson, IV, and J. Chapman. 2010. Effects of cotton seeding rate and row spacing on yield and fiber quality. p. 81. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Manning, J. K., D. O. Stephenson, IV, J. A. Bond, J. B. McDuffie, R. L. Landry, and J. B. Guice. 2010. Winter weed management with Sharpen in a no-till cotton system. p. 1514. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

McDuffie, J. B., J. A. Bond, D. O. Stephenson, IV, D. K. Miller, J. K. Manning, and R. L. Landry. 2010. Performance of residual herbicides applied in tank-mixtures with Staple LX and glyphosate. p. 1515. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Miller, D. K., D. O. Stephenson, M. S. Mathews. 2010. Glufosinate and insecticide combinations in Liberty Link cotton. p. 1524. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Steckel, L., S. Culpepper, K. Smith, J. Bond, M. Marshal, A. York, D. Stephenson, T. Mueller, M. Patterson, and A. Price. 2010. Weed resistance situation in Southern US row crops. In Proc., Pan-American Weed Resistant Conf. 1:28-29.

Stephenson, IV, D. O. and D. M. Scroggs. 2009. Effect of fomesafen on glyphosate plus S-metolachlor application timing in cotton. In Proc., South. Weed. Sci. Soc. 62:119.

Stephenson, IV, D. O. and D. M. Scroggs. 2009. Evaluation of Balance Flexx, Capreno, Corvus, and Laudis in corn. In Proc., South. Weed. Sci. Soc. 62:113.

Ferguson, R. E., D. O. Stephenson, D. K. Miller, and A. M. Stewart. 2009. Effect of pyrithiobac and S-metolachlor co-application on cotton growth and yield. In Proc., South. Weed Sci. Soc. 62:297.

Miller, D., D. Stephenson, D. Scroggs, and M. Mathews. 2009. Liberty Link cotton tolerance to combinations of glufosinate with insecticides and mepiquat chloride. In Proc., South. Weed Sci. Soc. 62:93.

Miller D., D. Stephenson, D. Scroggs, and M. Mathews. 2009. Liberty Link cotton tolerance to combinations of glufosinate and insecticides. In Proc., South. Weed Sci. Soc. 62:94.

Miller, D, D. Stephenson, M. Mathews. 2009. Cotton tolerance and weed control with Staple LX and Dual Magnum combinations with glyphosate. In Proc., South. Weed Sci. Soc. 62:121

Steckel, L., K. Smith, B. Scott, D. Stephenson, T. Koger, J. Bond, D. Miller, S. Stewart, and D. Dodd. 2009. Glyphosate resistant Palmer amaranth in the Mid-south. In Proc., South. Weed Sci. Soc. 62:372.

Stephenson, IV, D. O. and D. M. Scroggs. 2009. Effect of various glufosinate application rates and timings on weed control in cotton. p. 1360. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Barber, T, F. Bourland, and D. O. Stephenson, IV. 2009. Effect of row configuration and seeding rate on cotton yield and fiber quality. p. 43. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Miller, D. K., D. O. Stephenson, D. M. Scroggs, B. R. Leonard, E. Burris, and M. S. Mathews. 2009. Glufosinate and insecticide co-application effects on Liberty Link cotton. p. 1361. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Miller, D. K., D. O. Stephenson, D. M. Scroggs, B. R. Leonard, E. Burris, and M. S. Mathews. 2009. Glufosinate and insecticide/PGR co-application effects on growth and yield of Liberty Link cotton. p. 1362. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Miller, D. K., D. O. Stephenson, M. S. Mathews. 2009. Staple LX and Dual Magnum combination effects with glyphosate on weed control and cotton tolerance. p. 1331. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O. and B. J. Brecke. 2008. Weed control in twin-row cotton. In Proc., South. Weed Sci. Soc. 61:36.

Brecke, B. J. and D. O. Stephenson, IV. 2008. Weed management systems for twin-row cotton. p. 1737. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., W. J. Ross, and S. W. Lancaster. 2007. Effect of seeding pattern and rate on soybean growth and yield. In Annual meetings abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI.

Stephenson, IV, D. O., C. E. Wilson, P. Tacker, R. C. Scott, S. W. Lancaster, A. B. Beach, and J. W. Branson. 2007. Evaluation of a furrow-irrigated rice production system. In Proc., South. Weed Sci. Soc. 60:212.

Stephenson, IV, D. O., B. J. Brecke, and K. C. Hutto. 2007. Postemergence weed management programs in 15- vs. 30-inch cotton. In Proc., South. Weed Sci. Soc. 60:55.

Doherty, R. C., K. L. Smith, D. O. Stephenson, IV, and J. R. Meier. 2007. Control of glyphosate-tolerant Palmer amaranth in cotton with preplant and preemergence residual herbicides. In Proc., South. Weed Sci. Soc. 60:69.

Stephenson, IV, D. O., S. W. Lancaster, and A. B. Beach. 2007. Effect of seeding rate on paired-15-inch single-38-inch row cotton yield. p. 1780. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Koger, C. H. and D. O. Stephenson, IV. 2006. Impact of defoliant type and application timing on soybean yield and seed quality in the Mid-South USA. In Annual meetings abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI.

Stephenson, IV, D. O., B. J. Brecke, and K. C. Hutto. 2006. Effect of tillage and herbicide inputs on control of tropical spiderwort (Commelina benghalensis). In Proc., South. Weed Sci. Soc. 59:72.

Stephenson, IV, D. O., B. J. Brecke, and K. C. Hutto. 2006. Tropical spiderwort (Commelina benghalensis) control with various tillage and herbicide regimes. p. 2228. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Brecke, B. J. and D. O. Stephenson, IV. 2006. Weed management with Ignite in Liberty

Link cotton. p. 2241. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O. and B. J. Brecke. 2005. Comparison of single- and twin-row planting patterns in cotton production. In Annual meetings abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI.

Brecke, B. J., D. O. Stephenson, IV, and J. B. Unruh. 2005. Control of annual bluegrass in overseeded bermudagrass. In Annual meetings abstracts [CD-ROM]. ASA, CSSA, and SSSA, Madison, WI.

Stephenson, IV, D. O., B. J. Brecke, and J. B. Unruh. 2005. Control of pennywort, southern crabgrass, and Virginia buttonweed in bermudagrass with foramsulfuron and AEF 115008. In Weed Sci. Soc. America Abstr. 45:28.

Brecke, B. J., D. O. Stephenson, IV, and J. B. Unruh. 2005. Annual bluegrass control in nonoverseeded bermudagrass. In Weed Sci. Soc. America Abstr. 45:101.

Gray, C. J., D. R. Shaw, J. M. Prince, K. R. Reddy, J. A. Bond, D. O. Stephenson, IV, L. R. Oliver, and L. M. Bruce. 2005. Identifying variations among Palmer amaranth (Amaranthus palmeri) and pitted morningglory (Ipomoea lacunosa) accessions using hyperspectral remote sensing techniques. In Weed Sci. Soc. America Abstr. 45:124-125.

Unruh, J. B., B. J. Brecke, and D. O. Stephenson, IV. 2005. Control of seashore paspalum (Paspalum vaginatum) with selected herbicides. In Weed Sci. Soc. America Abstr. 45:30.

White, C. M., B. J. Brecke, D. O. Stephenson, IV, and J. B. Unruh. 2005. Perennial ryegrass removal from dormant bermudagrass. In Weed Sci. Soc. America Abstr. 45:29.

Stephenson, IV, D. O., B. J. Brecke, J. B. Unruh. 2005. Annual bluegrass (Poa annua) and lawn burweed (Soliva pterosperma) control in non-overseeded bermudagrass (Cynodon dactylon x C. transvaalensis) in Florida. In Proc., South. Weed Sci. Soc. 58:109.

Brecke, B. J. and D. O. Stephenson, IV. 2005. Impact of cultural weed management in peanut. In Proc., South. Weed Sci. Soc. 58:91.

Gray, C. J., D. R. Shaw, D. M. Dodds, K. R. Reddy, J. A. Bond, D. O. Stephenson, IV, L. R. Oliver, and L. M. Bruce. 2005. Using hyperspectral radiometry to identify variations among Palmer amaranth (Amaranthus palmeri) and pitted morningglory (Ipomoea lacunosa). In Proc., South. Weed Sci. Soc. 58:260.

Stephenson, IV, D. O. and B. J. Brecke. 2005. Is twin-row cotton production feasible? p. 2266. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Brecke, B. J. and D. O. Stephenson, IV. 2005. Weed management in strip tillage cotton. p. 1697. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., L. R. Oliver, S. N. Rajguru, and N. R. Burgos. 2004. Genetic variation of pitted morningglory (Ipomoea lacunosa) accessions using inter-simple sequence repeats. In Weed Sci. Soc. America Abstr. 44:66.

Stephenson, IV, D. O. and L. R. Oliver. 2003. Comparison of chlorimuron, fomesafen, and glyphosate for control of Arkansas pitted morningglory (Ipomoea lacunosa) accessions. Ark. Crop Prot. Assoc. 7:12.

Stephenson, IV, D. O. and L. R. Oliver. 2003. Morphological identification and characterization of accessions within the pitted morningglory (Ipomoea lacunosa) species. In Weed Sci. Soc. America Abstr. 43:51.

Stephenson, IV, D. O. and L. R. Oliver. 2003. Morphological identification and characterization of Arkansas pitted morningglory (Ipomoea lacunosa) accessions. In Proc., South. Weed Sci. Soc. 56:181.

Stephenson, IV, D. O. and L. R. Oliver. 2002. Control of Arkansas pitted morningglory (Ipomoea lacunosa) accessions with chlorimuron, fomesafen, and glyphosate. Ark. Crop Prot. Assoc. 6:2.

Stephenson, IV, D. O., L. R. Oliver, J. W. Barnes, J. A. Bond, and E. R. Walker. 2002. Use of glyphosate susceptibility to identify pitted morningglory (Ipomoea lacunosa) ecotypes. In Proc., South. Weed Sci. Soc. 55:183.

Bond, J. A., L. R. Oliver, J. W. Barnes, D. O. Stephenson, IV, and E. R. Walker. Susceptibility of Palmer amaranth populations to glyphosate, pyrithiobac, and fomesafen. 2002. In Proc., South. Weed Sci. Soc. 55:3.

Stephenson, IV, D. O., and L. R. Oliver. 2001. Pitted morningglory (Ipomoea lacunosa) variation in Arkansas. Ark. Crop Prot. Assoc. 5:1.

Stephenson, IV, D. O., and L. R. Oliver. 2001. Identification of pitted morningglory (Ipomoea lacunosa) ecotypes. In Proc., South. Weed Sci. Soc. 54:134-135.

Stephenson, IV, D. O., M. G. Patterson, S. B. Belcher, W. H. Faircloth, and J. C. Sanders. 2000. Soil-applied fomesafen (Reflex) combinations in Roundup Ready (glyphosate-tolerant) cotton systems. p. 1461. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., M. G. Patterson, G. H. Wehtje, S. B. Belcher, W. H. Faircloth, J. C. Sanders. 2000. Toxicity of fomesafen to yellow nutsedge (Cyperus esculentus). In Proc., South. Weed Sci. Soc. 53:231-232.

Belcher, S. B., M. G. Patterson, C. H. Burmester, W. H. Faircloth, and D. O. Stephenson, IV. Comparing ultra-narrow and conventional row cotton cropping systems. 2000. In Proc., South. Weed Sci. Soc. 53:30-31.

Faircloth, W. H., M. G. Patterson, S. B. Belcher, and D. O. Stephenson, IV. 2000. Comparison of spray application systems on the efficacy of Roundup Ultra in Roundup Ready cotton. In Proc., South. Weed Sci. Soc. 53:190.

Belcher, S. B., M. G. Patterson, C. H. Burmester, W. H. Faircloth, and D. O. Stephenson, IV. 1999. Comparing ultra-narrow and conventional row cotton cropping systems. p. 739. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Faircloth, W. H., M. G. Patterson, S. B. Belcher, and D. O. Stephenson, IV. 1999. Sicklepod and morningglory control with Roundup Ultra applied in a low volume, air-assisted spray. p. 748. In Proc., Beltwide Cotton Conf., National Cotton Council, Memphis, TN.

Stephenson, IV, D. O., M. G. Patterson, and J. N. Lunsford. 1999. Soil-applied fomesafen combinations for cotton weed management. In Proc., South. Weed Sci. Soc. 52:2.

Belcher, S. B., M. G. Patterson, W. H. Faircloth, and D. O. Stephenson, IV. 1999. Roundup Ready cotton weed control systems in Alabama. In Proc., South. Weed Sci. Soc. 52:1-2.

Faircloth, W. H., M. G. Patterson, S. B. Belcher, and D. O. Stephenson, IV. 1999. Preemergence vs. postemergence application of residual herbicides in Roundup Ready cotton. In Proc., South. Weed Sci. Soc. 52:3-4.

  • Beltwide Cotton Conference
    – Co-chair, Cotton Weed Sci. Res. Conf., 2010 – 2011
  • Southern Weed Science Society
    – Member, Board of Trustees, 2014-present
    – Secretary/Treasurer, 2014-present
    – Member, Finance Committee, 2014-present
    – Chair, Outstanding Graduate Student Award Committee, 2011-2013
    – Chair, Weed Resistant Committee, 2012
    – Secretary, Weed Resistant Committee, 2010-2012
    – Co-chair, Student Paper and Poster Contest Committee, 2007-2010
    – Member, Weed Resistant Committee, 2009–2013
    – Member, Sustaining Membership Committee, 2012–present
  • Weed Science of America
    – Associate Editor, Weed Technology, 2013-present

Graduate Students

  • 3 M.S. theses – Co-major professor
  • 4 M.S. thesis – Committee member
  • 2 Ph.D. dissertation – Committee member

Guest Lecture

  • Weed Identification, Ecology, and Morphology – University of Arkansas
  • Principles of Weed Control – University of Arkansas

Laboratory Instructor

  • General Soils – Auburn University
  • Chemistry and Use of Herbicides – Auburn University
  • Weed Identification, Ecology, and Morphology – University of Arkansas
  • Principles of Weed Science – University of Florida
  • Turfgrass Culture – University of Florida

LOUISIANA STATE UNIVERSITY AGCENTER Alexandria, Louisiana

Associate Professor - Weed Scientist/Specialist July 2012 to Present

Field Crops Coordinator – Dean Lee Research Station July 2012 to Present

Assistant Professor – Weed Scientist/Specialist May 2008 to June 2012

UNIVERSITY OF ARKANSAS Keiser, Arkansas

Assistant Professor - Cropping Systems Agronomist July 2005 to April 2008

UNIVERSITY OF FLORIDA Milton, Florida

Post-doctoral Research Associate March 2004 to June 2005

UNIVERSITY OF ARKANSAS Fayetteville, Arkansas

Graduate Research Assistant May 2000 to February 2004

AUBURN UNIVERSITY Auburn, Alabama

Graduate Research Assistant August 1998 to March 2000

Innovate . Educate . Improve Lives

The LSU AgCenter and the LSU College of Agriculture

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