Hostname: page-component-78c5997874-dh8gc Total loading time: 0 Render date: 2024-11-06T08:26:39.919Z Has data issue: false hasContentIssue false
  • English
  • Français

Soil dust reduces glyphosate efficacy

Published online by Cambridge University Press:  20 January 2017

Jingkai Zhou ,
Bo Tao  and
Calvin G. Messersmith
Bo Tao
Affiliation:
Department of Plant Protection, Northeast Agricultural University, Harbin, China 150030
Calvin G. Messersmith
Affiliation:
Department of Plant Sciences, North Dakota State University, Fargo, ND 58105
Get access Rights & Permissions [Opens in a new window]

Abstract

Greenhouse studies were conducted to determine the effect of soil dust on glyphosate efficacy. Eastern black nightshade and hairy nightshade were affected similarly by glyphosate, regardless of whether plants were or were not treated with dust, but glyphosate phytotoxicity decreased when dust accumulated on plants. Silty clay dust at 2, 4, 6, 8, and 10 kg ha−1 on nightshade plants decreased the efficacy of glyphosate at 80 g ae ha−1 by 1, 5, 12, 21, and 32 percentage points, respectively. The adverse effect of dust on glyphosate efficacy occurred regardless of whether dust settled before or immediately after herbicide spraying and varied with dust type, which was silty clay ≥ silty clay loam > loamy sand. Glyphosate efficacy was slightly influenced by dust pH, with a trend toward increased efficacy as pH increased. Glyphosate applied at 280 L ha−1 spray volume controlled dust-treated plants better than when applied at 94 or 190 L ha−1. Three adjuvants (ammonium sulfate, nonionic surfactant, and organosilicone surfactant) only partially overcame the adverse effect of dust on glyphosate efficacy in eastern black and hairy nightshade control. Methylated seed oil or petroleum oil adjuvants did not improve glyphosate control of dust-treated or untreated plants.

Keywords

Glyphosateeastern black nightshade, Solanum ptycanthum Dun. SOLPThairy nightshade, Solanum sarrachoides Sendtn. SOLSAAdjuvantdust pHdust ratedust typeherbicide efficacy
Type
Research Article
Information
Weed Science , Volume 54 , Issue 6 , December 2006 , pp. 1132 - 1136
Copyright
Copyright © Weed Science Society of America 

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

Literature Cited

Bailey, G. W. and White, J. L. 1970. Factors influencing the adsorption and desorption, and movement of pesticides in soil. Residue Rev. 32:29–92.Google Scholar
Calvert, R. 1980. Adsorption-desorption phenomena. Pages 1–30 in Hance, R. J. ed. Interactions Between Herbicides and the Soil. London: Academic.Google Scholar
deJonge, H. and deJonge, L. W. 1999. Influence of pH and solution composition on the sorption of glyphosate and prochloraz to sandy loam soil. Chemosphere. 39:753–763.Google Scholar
deJonge, H., deJonge, L. W., Jacobsen, O. H., Yamaguchi, T., and Moldrup, P. 2001. Glyphosate sorption in soils of different pH and phosphorus content. Soil Sci. 166:230–238.CrossRefGoogle Scholar
De Sangosse. 2005. Silwet L-77: The Best Super Wetter. www.desangosse.co.uk/adjuvants/Silwet.html.Google Scholar
Harper, S. S. 1994. Sorption–desorption and herbicide behavior in soil. Rev. Weed Sci. 6:207–225.Google Scholar
Gimsing, A. L., Borggaard, O. K., and Bang, M. 2004. Influence of soil composition on adsorption of glyphosate and phosphate by contrasting Danish surface soils. Eur. J. Soil Sci. 55:183–191.Google Scholar
Glass, R. L. 1987. Phosphate adsorption by soils and clay minerals. J. Agric. Food Chem. 35:497–500.Google Scholar
Kogan, M. and Zuniga, M. 2001. Dew and spray volume effect on glyphosate efficacy. Weed Technol. 15:590–593.Google Scholar
Mathiassen, S. K. and Kudsk, P. 1999. Effects of simulated dust deposits on herbicide performance. Page 205 in Proceedings of the 11th European Weed Research Society Symposium, Doorwerth, The Netherlands: European Weed Research Society.Google Scholar
Monsanto. 2005. History of Monsanto's Glyphosate Herbicides. www.monsanto.com/monsanto/layout/sci_tech/crop_chemicals/scipubs.asp#generalinfo.Google Scholar
Rueppel, M. L., Brightwell, B. B., Schaefer, J., and Marvel, J. T. 1977. Metabolism and degradation of glyphosate in soil and water. J. Agric. Food Chem. 25:517–528.Google Scholar
Rytwo, G. and Tavasi, M. 2003. Addition of a monovalent cationic pesticide to improve efficacy of bipyridyl herbicide in Hulah valley soils. Pest Manag. Sci. 59:1265–1270.Google Scholar
Rytwo, G. and Tropp, D. 2001. Improved efficiency of a divalent herbicide in the presence of clay, by addition of monovalent organocations. Appl. Clay Sci. 18:327–333.Google Scholar
Sandberg, L. C., Meggitt, W. F., and Penner, D. 1978. Effect of diluent volume and calcium on glyphosate phytotoxicity. Weeds. 26:477–479.Google Scholar
Sprankle, P., Meggitt, W. F., and Penner, D. 1975. Adsorption, mobility, and microbial degradation of glyphosate in the soil. Weed Sci. 23:229–234.Google Scholar