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 JWARP  Vol.9 No.5 , April 2017
Half-Life of Glyphosate on the Control of Water Hyacinths in Water Tanks
Abstract: The present study had the purpose to assess the behavior of the herbicide glyphosate in the control of water hyacinths, in a water environment through half-life, in a controlled and closed experimental field, in order to contribute to the analysis of the risk of the environmental impact of the use of this product. Eight fiber-cement tanks with the storage capacity of 250 liters were used under the conditions without water flow and without replacement of water. The experiment was designed in two treatments with four repetitions, the first being colonized by water hyacinths and the second without the presence of the macrophyte. The recommended dose, according to the manufacturer, was 7.0 L·ha-1 or 3402 g·ha-1 of equivalent acid. For the application in the tanks, we have used carbon dioxide (CO2) precision equipment, providing a flow rate of 200 L·ha-1. The samples were collected on the day of the application (day zero) and 2, 4, 8, 16, 32 and 64 days thereafter (DAP). The method used for determination of residues was by high performance liquid chromatography (HPLC) and mass spectrometry with a mass selective detector. From the mathematical model of charge decay, the half-life of glyphosate in water was estimated to six days for the tanks without water hyacinths and sixteen days for the tanks colonized by macrophytes. The result obtained permits to conclude that the glyphosate in water is quickly degraded in closed water environments and does not leave residues that would prevent its use.
Cite this paper: Souza, E. , Foloni, L. , Filho, J. , Velini, E. , Siono, L. and Silva, J. (2017) Half-Life of Glyphosate on the Control of Water Hyacinths in Water Tanks. Journal of Water Resource and Protection, 9, 470-481. doi: 10.4236/jwarp.2017.95030.
References

[1]   Fairchild, F.J., Ruessler, D.S. and Carsol, A.R. (1998) Comparative Sensitivity of Five Species of Macrophytes and Six Species of Algae to Atrazine, Metribuzin, Alachlor, and Metolachlor. Environmental Toxicology and Chemistry, 17, 1830-1834.

[2]   Velini, E.D. (2000) Aquatic Weeds Control. XXII Brazilian Congress of Weed Science, Lectures, SBCPD, Foz do Iguacu, 137-147.

[3]   Martins, D., Velini, E.D. and Negrisoli, E. (2005) Control of Egeria densa and Egeria najas in Water Tanks Using Diquat. Planta Daninha, 23, 381-385.
https://doi.org/10.1590/S0100-83582005000200029

[4]   Martins, D. (1998) Aquatic Plants Control. Workshop Aquatic Plants Control, Brasilia, Anais, IBAMA, 30-31.

[5]   Pitelli, R.A., Martins, D. and Velini, E.D. (2008) Interference and Control of Aquatic Weeds. In: Vargas, L. and Roman, E.S., Eds., Manual Management and Weed Control, HRAC-BR, Passo Fundo, 299-328.

[6]   Carvalho, F.T., Velini, E.D., Negrisoli, E. and Rossi, C.V.S. (2005) Efficiency of Carfentrazone-Ethyl in Controlling Large-Leafed Aquatic Plants Using Boxes of Water. Planta Daninha, 23, 305-310.
https://doi.org/10.1590/S0100-83582005000200018

[7]   Foloni, L.L. and Pitelli, R.A. (2005) Assessment of Sensitivity of Several Aquatic Weeds to Carfentrazone-Ethyl under Controlled Environment. Planta Daninha, 23, 329-334.
https://doi.org/10.1590/S0100-83582005000200021

[8]   Cícero, E.A.S., Pittelli, R.A., Sena, J.A.D. and Ferraudo, A.S. (2007) Genetic Variability and Sensitivity of Pistia stratiotes Accesses to Glyphosate. Planta Daninha, 25, 3, 579-587.
https://doi.org/10.1590/S0100-83582007000300018

[9]   Martins, D., Velini, E.D., Costa, N.V., Cardoso, L.A. and Souza, G.S.F. (2011) Chemical Control of Eichhornia crassipes and Brachiaria subquadripara with Diquat under Reservoir Conditions. Planta Daninha, 29, 51-57.
https://doi.org/10.1590/S0100-83582011000100006

[10]   Velini, E.D., Negrisoli, E., Cavenaghi, A.L., Correa, M.R., Bravin, L.F.N., De March, S.R., Trindade, M.L.B., Arruda, D.P. and Padilha, F.S. (2005) Characterization of Water and Sediment Quality at the Americana Reservoir Related to the Occurrence of Aquatic Plants. Planta Daninha, 23, 215-223.
https://doi.org/10.1590/S0100-83582005000200007

[11]   Tanaka, R.H., Velini, E.D., Martins, D., Bronhara, A.A., Silva, M.A.S., Cavenaghi, A.L. and Tomazela, M.S. (2002) Efficacy of Fluridone in Controlling Egeria spp. in Tanks and in a Small Pond without Water Flow. Planta Daninha, 20, 73-81. (Special Edition)

[12]   Marcondes, D.A.S., Velini, E.D., Martins, D., Tanaka, R.H., Carvalho, A.L., Cavenaghi, A.L. and Bronhara, A.A. (2002) Fluridone Efficacy in Controlling Submersed Aquatic Weeds and Its Effects on Some Environmental Characteristics. Planta Daninha, 20, 63-71. (Special Edition)

[13]   Guimaraes, G.L. (2003) Impacts of Macrophytes Control Using 2,4-D Herbicide on Mesocosms. Thesis (Doctorate in Agricultural Engineering), Faculty of Agricultural Engineering, State University of Campinas, Campinas.

[14]   Martins, A.T. and Pitelli, R.A. (2005) Effects of Water Hyacinth Management on Water Quality under Mesocosmic Conditions. Planta Daninha, 23, 233-242.
https://doi.org/10.1590/S0100-83582005000200009

[15]   Negrisoli, E., Martins, D., Velini, E.D. and Ferreira, W.L.B. (2003) Diquat Degradation under Small-Tank Conditions with and without Egeria Plants. Planta Daninha, 21, 93-98. (Special Edition)
https://doi.org/10.1590/S0100-83582003000400014

[16]   Monsanto (1988) Herbicides to Aquatic Plants. Rodeo, Technical Manual.

[17]   Brazilian Society of Weed Science—SBCPD (1995) Procedures for Installation, Evaluation and Analysis of Experiments with Herbicides, Londrina.

[18]   Cruz, C., Nader Neto, A., Girio, A.C.F. and Pitelli, R.A. (2012) Efficacy of Glyphosate in Floating Macrophytes and Effects on Bioindicators. XXVIII Brazilian Congress of Weed Science, Campo Grande, 12-16.

[19]   Paterson, M. (2004) Glyphosate Analysis of Risks to Endangered and Threatened Salmon and Steelhead.
http://www.epa.gov/espp/litstatus/effects/glyphosate-analysis.pdf

[20]   European Commission (2002) Review Report for the Active Substance Glyphosate. Finalised in the Standing Committee on Plant Health at its Meeting on 29 June 2001 in View of the Inclusion of Glyphosate in Annex I of Directive 91/414/EEC. European Commission, Health & Consumer Protection Directorate-General, Brussels, 56 p.

[21]   Battaglin, W.A., Kolpin, D.W., Scribner, E.A., Kuivila, K.M. and Sandstrom, M.W. (2005) Glyphosate, Others Herbicides, and Transformation Products in Midwestern Streams, 20021. Journal of the American Water Resources Association, 41, 323-332.
https://doi.org/10.1111/j.1752-1688.2005.tb03738.x

[22]   Estes, T.L. (2007) Estimation of Kinetic Parameters to Describe Dissipation of Glyphosate in Water-Sediment Systems, Using Data from Heintze, 1996. Monsanto Study XX-2005-066, Prepared by Stone Environmental Inc. Monsanto Company, St. Louis, Missouri, 61 p.

[23]   Giesy, J.P., Dobson, S. and Solomon, K.R. (2000) Ecotoxicological Risk Assessment for Roundup Herbicide. In: Ware, G.W., Ed., Reviews of Environmental Contamination and Toxicology, Vol. 167, Springer, New York, 35-120.
https://doi.org/10.1007/978-1-4612-1156-3_2

[24]   Feng, J.C., Thompson, D.G. and Reynolds, P.E. (1990) Fate of Glyphosate in a Canadian Forest Watershed. Aquatic Residues and Off-Target Deposit Assessment. Journal of Agricultural and Food Chemistry, 38, 1110-1118.
https://doi.org/10.1021/jf00094a045

[25]   Goldsborough, L.G. and Brown, D.J. (1993) Dissipation of Glyphosate and Aminomethylphosphonic Acid in Water and Sediments of Boreal Forest Ponds. Environmental Toxicology and Chemistry, 12, 1139-1147.
https://doi.org/10.1002/etc.5620120702

[26]   FPPD (2012) Glyphosate. “Fooprint” Pesticide Properties Database.
http://sitem.herts.ac.uk/aeru/footprint/index2.htm

[27]   Mackay, D., Shiu, W., Ma, K.C. and Lee, S.C. (2006) Handbook of Physical-Chemical Properties and Environmental Fate for Organic Chemicals. 2nd Edition, CRC Press, Boca Raton.

[28]   Ghassemi, M., Fargo, L., Painter, P. and Quinlivan, S. (1981) Environmental Fates and Impacts of Major Forest Use Pesticides. US Environmental Protection Agency, Office of Pesticides and Toxic Substances, Washington DC.

[29]   Mercurio, P., Flores, F., Mueller, J.F., Carter, S. and Negri, A.P. (2014) Glyphosate Persistence in Seawater. Marine Pollution Bulletin, 85, 385-390.

[30]   Mallat, E. and Barceló, D. (1998) Analysis and Degradation Study of Glyphosate and of Aminomethylphosphonic Acid in Natural Waters by Means of Polymeric and Ion-Exchange Solid-Phase Extraction Columns Followed by Ion Chromatography-Post-Column Derivatization with Fluorescence Detection. Journal of chromatography, 823, 129-136.

[31]   Wang, S., Seiwert, B., Kastner, M., Miltner, A., Schaffer, A., Reemtsma, T., Yang, Q. and Nowak, K. (2016) (Bio)degradation of Glyphosate in Water-Sediment Microcosms—A Stable Isotope Co-Labeling Approach. Water Research, 99, 91-100.

[32]   Centeno, A.J. (2009) Glyphosate: An Environmental Vision. In: Velini, E.D., Meschede, D.K., Carbonari, C.A. and Trindade, M.L.B., Eds., Glyphosate, Fepaf, Botucatu, 145-152.

[33]   Pitelli, R.A. (2009) Glyphosate in the Control of Aquatic Weeds. In: Velini, E.D., Meschede, D.K., Carbonari, C.A. and Trindade, M.L.B., Eds., Glyphosate, Fepaf, Botucatu, 413-427.

 
 
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