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Optimizing Alcohol Ethoxylate Surfactant Activity at Low Doses

Published online by Cambridge University Press:  12 June 2017

Jerry M. Green
Jerry M. Green*
Affiliation:
DuPont Agricultural Products, Stine-Haskell Research Center, Newark, DH 19714-0030. E-mail: [email protected]
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Abstract

Certain linear alcohol ethoxylate surfactants with large hydrophobes enhanced nicosulfuron activity on giant foxtail (Setaria faberi) more effectively at low doses than surfactants with small hydrophobes and commercial standards. The most effective surfactants had a C16–18 hydrophobe and 12 to 30 moles of ethoxylation or a C24 hydrophobe with 13 moles of ethoxylation. Response curve analysis showed these linear alcohol ethoxylate surfactants were five- to 20-fold more active on a dose basis than currently used commercial surfactants.

Keywords

Nicosulfuron, 2-[[[[(4,6-dimethoxy-2-pyrimidinyl)amino]carbonyl]amino]sulfonyl]-N,N-dimethyl-3-pyridinecarboxamidegiant foxtail, Setaria faberi HerrmAdjuvantnonylphenol ethoxylatepetroleum crop oil concentratemodified seed oilmethylated seed oilnonionic surfactantsilicone surfactantCOC, petroleum crop oil concentrateEO, number of ethylene oxidesMSO, modified seed oil
Type
Research
Information
Weed Technology , Volume 13 , Issue 4 , December 1999 , pp. 737 - 740
Copyright
Copyright © 1999 by the Weed Science Society of America 

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References

Literature Cited

Burrow, R. F., Penner, D., Roggenbuck, F. R., and Hill, R. M. 1996. Relationship of organosilicone adjuvant structure and phase behavior to activity enhancement of acifluorfen and glyphosate. In Gaskin, R. E., ed. Proceedings of the Fourth International Symposium on Adjuvants for Agrochemicals. Rotura, NZ: New Zealand Forest Research Institute. pp. 54–59.Google Scholar
Gaskin, R. E. and Holloway, P. J. 1992. Some physicochemical factors influencing foliar uptake enhancement of glyphosate mono-(isopropylammonium) by polyoxyethylene surfactants. Pestic. Sci. 34:195–206.Google Scholar
Green, J. M. 1996. Specifying adjuvants for pesticides. In Gaskin, R. E., ed. Proceedings of the Fourth International Symposium on Adjuvants for Agrochemicals. Rotura, NZ: New Zealand Forest Research Institute. pp. 320–327.Google Scholar
Green, J. M., Douchet, J. P., Reheis, A., Sanchis, P., Kreidi, M., and Corel, J. 1995. DPX-KG691—A new surfactant for sulfonylurea herbicides. Sixteenth Columa Conference International Meeting on Weed Control. Volume 1. National Association for Plant Protection, December 6–8, 1995, Reims, France. pp. 469–475.Google Scholar
Green, J. M. and Green, J. H. 1993. Surfactant structure and concentration strongly affect rimsulfuron activity. Weed Technol. 7:633–640.Google Scholar
Green, J. M. and Hazen, J. L. 1998. Understanding and using adjuvant properties to enhance pesticide activity. In McMullan, Patrick, ed. Fifth International Symposium on Adjuvant for Agrochemicals. Volume 1. Memphis, TN: Chemical Producers and Distributors Association. pp. 25–36.Google Scholar
Schönherr, J. 1993. Effects of monodisperse alcohol ethoxylates on mobility of 2,4-D in isolated plant cuticles. Pestic. Sci. 38:155–164.Google Scholar
Streibig, J. C., Rudemo, M., and Jensen, J. E. 1993. Dose–response curves and statistical models. In Streibig, J. C. and Kudsk, P., eds. Herbicide Bioassays. Boca Raton, FL: CRC Press. pp. 30–55.Google Scholar
U.S. Government. 1987. Code of Federal Regulations, Title 40, Subchapter E, Part 180, Subpart D-180.1001. Washington, DC: U.S. Government Printing Office.Google Scholar