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ARS Home » Southeast Area » Houma, Louisiana » Sugarcane Research » People & Locations » Douglas Spaunhorst

Douglas J Spaunhorst
Sugarcane Research
Research Agronomist

Phone: (985) 853-3161
Fax: (985) 868-8369

5883 USDA ROAD
HOUMA, LA 70360
Projects
New Crop Production and Protection Practices to Increase Sugarcane Ratoon Longevity and Maximize Economic Sustainability
In-House Appropriated (D)
  Accession Number: 437753
Potential Paraquat Resistance in Italian Ryegrass from Louisiana
Non-Funded Cooperative Agreement (N)
  Accession Number: 436051
Improving Sugarcane Production Efficiency (ASCL)
Trust Fund Cooperative Agreement (T)
  Accession Number: 438359

Publications (Clicking on the reprint icon Reprint Icon will take you to the publication reprint.)
Registration of ‘Ho 05-961’ sugarcane - (Peer Reviewed Journal)
Influence of summer fallow on aromatic secondary products in sugarcane (Saccharum spp. hybrids) Reprint Icon - (Peer Reviewed Journal)
Uchimiya, M., Spaunhorst, D.J. 2020. Influence of summer fallow on aromatic secondary products in sugarcane (Saccharum spp. hybrids). Journal of Agriculture and Food Research. 2:100064. https://doi.org/10.1016/j.jafr.2020.100064.
Influence of establishment timing on growth and fecundity of two itchgrass (Rottboellia cochinchinensis) biotypes grown in Louisiana Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J. 2020. Influence of establishment timing on growth and fecundity of two itchgrass (Rottboellia cochinchinensis) biotypes grown in Louisiana. Weed Science. 68:418-425. https://doi.org/10.1017/wsc.2020.30.
Influence of topramezone plus triclopyr mixtures and application timing on bermudagrass control in sugarcane - (Abstract Only)
Spaunhorst, D.J. 2019. Influence of topramezone plus triclopyr mixtures and application timing on bermudagrass control in sugarcane [abstract]. International Society of Sugarcane Technologists 3rd Agricultural Engineering, Agronomy and Extension Workshop, September 23 - 28, 2019, La Reunion Island. p. 49
Occurrence and control of weeds in sugarcane in Louisiana - exploring the use of triclopyr for bermudagrass management - (Proceedings)
Orgeron, A.J., Spaunhorst, D.J., Gravois, K.A. 2019. Occurrence and control of weeds in sugarcane in Louisiana - exploring the use of triclopyr for bermudagrass management. Proceedings of the International Society of Sugarcane Technologists. 30:299-306.
Burning post-harvest sugarcane residue for control of surface-deposited divine nightshade (Solanum nigrescens) and itchgrass (Rottboellia cochinchinensis) seed Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Orgeron, A.J., White Jr, P.M. 2019. Burning post-harvest sugarcane residue for control of surface-deposited divine nightshade (Solanum nigrescens) and itchgrass (Rottboellia cochinchinensis) seed. Weed Technology. 33(5):693-700. https://doi.org/10.1017/wet.2019.65.
Genetic diversity of divine nightshade (Solanum nigrescens Mart. & Gal.) in Louisiana - (Abstract Only)
Foster, M.R., Orgeron, A.J., Baisakh, N., Spaunhorst, D.J. 2019. Genetic diversity of divine nightshade (Solanum nigrescens Mart. & Gal.) in Louisiana [abstract]. Journal American Society of Sugar Cane Technologists. 39:51.
Sugarcane cultivar response to glyphosate and trinexapac-ethyl ripeners in Louisiana Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Todd, J.R., Hale, A.L. 2019. Sugarcane cultivar response to glyphosate and trinexapac-ethyl ripeners in Louisiana. PLoS One. 14(6):e0218656. https://doi.org/10.1371/journal.pone.0218656.
Dry heat and exposure time influence divine nightshade and itchgrass seed emergence Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Orgeron, A.J. 2019. Dry heat and exposure time influence divine nightshade and itchgrass seed emergence. Agronomy Journal. 3(5):2226-2231. https://doi.org/10.2134/agronj2019.02.0072.
Influence of burning post-harvest sugarcane residue density and moisture content on surface deposited divine nightshade and itchgrass emergence - (Abstract Only)
Spaunhorst, D.J., Orgeron, A.J., White Jr, P.M. 2019. Influence of burning post-harvest sugarcane residue density and moisture content on surface deposited divine nightshade and itchgrass emergence [abstract]. Journal American Society of Sugarcane Technologists. 39:29-30.
Postemergence control failure of Italian ryegrass [Lolium perenne L. ssp. multiflorum (Lam.) Husnot] with paraquat - (Abstract Only)
Orgeron, A.J., Coco, A.B., Foster, M.R., Spaunhorst, D.J. 2019. Postemergence control failure of Italian ryegrass [Lolium perenne L. ssp. multiflorum (Lam.) Husnot] with paraquat [abstract]. Journal American Society of Sugarcane Technologists. 39:49.
Greenhouse seedling production with sugarcane by-products - (Proceedings)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Lima, I.M., Gu, M., Petrie, E.C., Landrum, D.S. 2019. Greenhouse seedling production with sugarcane by-products. Advances in Sugar Crop Processing and Conversion. 2:321-328.
Confirmation of herbicide resistance mutations Trp574Leu, G210, and EPSPS gene amplification and control of multiple herbicide-resistant Palmer amaranth (Amaranthus palmeri) with chlorimuron-ethyl, fomesafen, and glyphosate Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Nie, H., Todd, J.R., Young, J.M., Young, B.G., Johnson, W.G. 2019. Confirmation of herbicide resistance mutations Trp574Leu, G210, and EPSPS gene amplification and control of multiple herbicide-resistant Palmer amaranth (Amaranthus palmeri) with chlorimuron-ethyl, fomesafen, and glyphosate. PLoS One. 14(3):e0214458.
Burning sugarcane residue: an integrated approach for managing surface deposited divine nightshade and itchgrass seed - (Abstract Only)
Spaunhorst, D.J. 2019. Burning sugarcane residue: an integrated approach for managing surface deposited divine nightshade and itchgrass seed [abstract]. Weed Science Society of America Meeting Abstracts, February 11-14, 2019, New Orleans, Louisiana. 2019:168. http://wssaabstracts.com/public/59/Presentations-sorted-by-title.html
Impact of acetic acid concentration, application volume, and adjuvants on weed control efficacy Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Shrefler, J.W., Spaunhorst, D.J. 2018. Impact of acetic acid concentration, application volume, and adjuvants on weed control efficacy. Journal of Agricultural Science. 10(8):1-6. https://doi.org/10.5539/jas.v10n8p1.
Seedbank persistence of Palmer amaranth (Amaranthus palmeri) and waterhemp (Amaranthus tuberculatus) across diverse geographical regions in the United States Reprint Icon - (Peer Reviewed Journal)
Korres, N.E., Norsworthy, J.K., Young, B.G., Reynolds, D.B., Johnson, W.G., Conley, S.P., Smeda, R.J., Mueller, T.C., Spaunhorst, D.J., Gage, K.L., Loux, M., Kruger, G.R., Bagavathiannan, M.V. 2018. Seedbank persistence of Palmer amaranth (Amaranthus palmeri) and waterhemp (Amaranthus tuberculatus) across diverse geographical regions in the United States. Weed Science. 66(4):446-456. https://doi.org/10.1017/wsc.2018.27.
Performance of synthetic auxin and HPPD-inhibiting herbicides for control of divine nightshade (Solanum nigrescens Mart. & Gal.) in Louisiana sugarcane - (Abstract Only)
Spaunhorst, D.J., Orgeron, A.J. 2018. Performance of synthetic auxin and HPPD-inhibiting herbicides for control of divine nightshade (Solanum nigrescens Mart. & Gal.) in Louisiana sugarcane [abstrct]. Journal of the American Society of Sugar Cane Technologists. 38:45.
Evaluation of new herbicide chemistries for managing itchgrass (Rottboellia cochinchinensis) in Louisiana sugarcane - (Abstract Only)
Orgeron, A.J., Spaunhorst, D.J. 2018. Evaluation of new herbicide chemistries for managing itchgrass (Rottboellia cochinchinensis) in Louisiana sugarcane [abstract]. Journal of the American Society of Sugar Cane Technologists. 38:44.
Bermudagrass - A lingering problematic weed in Louisiana sugarcane ()
Spaunhorst, D.J., Orgeron, A.J. 2018. Bermudagrass - A lingering problematic weed in Louisiana sugarcane. Sugar Journal. 80(12):10-13.
Solanum nigrescens: A potentially problematic nightshade weed species in Louisiana sugarcane - (Peer Reviewed Journal)
Orgeron, A.J., Schilling, E.E., Urbatsch, L.E., Ma, Q., Spaunhorst, D.J. 2018. Solanum nigrescens: A potentially problematic nightshade weed species in Louisiana sugarcane. Journal American Society of Sugar Cane Technologists. 38:23-43.
Sugarcane and pine biochar as amendments for greenhouse growing media for the production of bean (Phaseolus vulgaris L.) seedlings Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Gu, M., Spaunhorst, D.J., Lima, I.M., Petrie, E.C. 2018. Sugarcane and pine biochar as amendments for greenhouse growing media for the production of bean (Phaseolus vulgaris L.) seedlings. Journal of Agricultural Science. 10(4):58-68. https://doi.org/10.5539/jas.v10n4p58.
Phenology of five Palmer amaranth (Amaranthus palmeri) populations grown in northern Indiana and Arkansas Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Devkota, P., Johnson, W.G., Smeda, R.J., Meyer, C.J., Norsworthy, J.K. 2018. Phenology of five Palmer amaranth (Amaranthus palmeri) populations grown in northern Indiana and Arkansas. Weed Science. 66(4):457-469. https://doi.org/10.1017/wsc.2018.12.
A review of topramezone in sugarcane and potential carryover of post emergence soybean herbicides on plant cane - (Abstract Only)
HPPD plus growth regulator herbicides for control of divine nightshade (Solanum nigrescens Mart. & Gal.) in ratoon sugarcane - (Abstract Only)
Spaunhorst, D.J., Orgeron, A.J. 2018. HPPD plus growth regulator herbicides for control of divine nightshade (Solanum nigrescens Mart. & Gal.) in ratoon sugarcane [abstract]. Weed Science Society of America Meeting Proceedings. 2018:262. http://www.wssaabstracts.com/public/54/proceedings.html
Sugarcane biochar as an amendment for greenhouse growing media for the production of cucurbit seedlings Reprint Icon - (Peer Reviewed Journal)
Webber III C.L., White Jr, P.M., Spaunhorst, D.J., Lima, I.M., Petrie, E.C. 2018. Sugarcane biochar as an amendment for greenhouse growing media for the production of cucurbit seedlings. Journal of Agricultural Science. 10(2):104-115. https://doi.org/10.5539/jas.v10n2p104.
Sugarcane crop residue and bagasse allelopathic impact on oat (Avena sative L.), tall morningglory (Ipomoea purpurea L. Roth), and redroot pigweed (Amaranthus retroflexus L.) germination Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Wayment, D.G., Landrum, D.S. 2018. Sugarcane crop residue and bagasse allelopathic impact on oat (Avena sative L.), tall morningglory (Ipomoea purpurea L. Roth), and redroot pigweed (Amaranthus retroflexus L.) germination. Journal of Agricultural Science. 10(2):15-22. https://doi.org/10.5539/jas.v10n2p15.
Sugarcane field residue and root allelopathic impact on weed seed germination Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Landrum, D.S., Spaunhorst, D.J., Wayment, D.G., Dorvil, E.N. 2018. Sugarcane field residue and root allelopathic impact on weed seed germination. Journal of Agricultural Science. 10(1):66-72. https://doi.org/10.5539/jas.v10n1p66.
Sugarcane field residue and bagasse allelopathic impact on vegetable seed germination Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Landrum, D.S., Spaunhorst, D.J., Wayment, D.G. 2017. Sugarcane field residue and bagasse allelopathic impact on vegetable seed germination. Journal of Agricultural Science. 9(11):10-16.
Comparative performance of sugarcane bagasse and black polyethylene as mulch for squash (Cucurbita pepo L.) production Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Petrie, E.C. 2017. Comparative performance of sugarcane bagasse and black polyethylene as mulch for squash (Cucurbita pepo L.) production. Journal of Agricultural Science. 9(11):1-9.
Variable tolerance among Palmer amaranth (Amaranthus palmeri) biotypes to glyphosate, 2,4-D amine, and premix formulation of glyphosate plus 2,4-D choline (Enlist Duo®) herbicide Reprint Icon - (Peer Reviewed Journal)
Spaunhorst, D.J., Johnson, W.G. 2017. Variable tolerance among Palmer amaranth (Amaranthus palmeri) biotypes to glyphosate, 2,4-D amine, and premix formulation of glyphosate plus 2,4-D choline (Enlist Duo®) herbicide. Weed Science. 65(6):787-797.
Impact of sugarcane bagasse ash as an amendment on the physical properties, nutrient content and seedling growth of a certified organic greenhouse growing media Reprint Icon - (Peer Reviewed Journal)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Petrie, E.C. 2017. Impact of sugarcane bagasse ash as an amendment on the physical properties, nutrient content and seedling growth of a certified organic greenhouse growing media. Journal of Agricultural Science. 9(7):1-11. https://doi.org/10.5539/jas.v9n7p1.
Influence of cover crops on management of Amaranthus species in glyphosate- and glufosinate-resistant soybean Reprint Icon - (Peer Reviewed Journal)
Loux, M.M., Dobbels, K.W., Bradley, K.W., Johnson, W.G., Young, B.G., Spaunhorst, D.J., Norsworthy, J.K., Palhano, M., Steckel, L.E. 2017. Influence of cover crops on management of Amaranthus species in glyphosate- and glufosinate-resistant soybean. Weed Technology. 31:487-495.
Does fallow planted soybean and sweet sorghum reduce plant cane density? - (Abstract Only)
Spaunhorst, D.J., White Jr, P.M. 2017. Does fallow planted soybean and sweet sorghum reduce plant cane density? Journal of American Society of Sugar Cane Technologists. 37:24.
Allelopathic impact of HoCP 96-540 field residue on seed germination - (Abstract Only)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Landrum, D.S. 2017. Allelopathic impact of HoCP 96-540 field residue on seed germination [abstract]. Journal of the American Society of Sugar Cane Technologists. 37:50-51.
Sugarcane boiler ash as an amendment for soilless growing media - (Abstract Only)
Webber III, C.L., White Jr, P.M., Spaunhorst, D.J., Petrie, E.C., Landrum, D.S. 2017. Sugarcane boiler ash as an amendment for soilless growing media [abstract]. Journal of the American Society of Sugar Cane Technologists. 37:50.