Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum
Premix or tank mix of glyphosate and 2,4-D are a good alternative to control glyphosate-resistant and -tolerant weeds; however, the combination of herbicides may increase the environmental impacts, since mixtures often have higher toxicity than a single herbicide. In addition, antagonism between these herbicides has also been reported. We compared the efficacy of a premix glyphosate+2,4-D formulation with respect to the tank mix of both herbicides on glyphosate-resistant Conyza canadensis and -tolerant Epilobium ciliatum populations in laboratory and field experiments. 2,4-D suppressed the glyphosate-resistance/tolerance of both species, whose populations presented similar responses to their susceptible counterparts (LD50 ≥ 480+320 g ha−1 glyphosate + 2,4-D, respectively). Plants of both species treated with the premix formulations retained ∼100-μL more herbicide solution, accumulated 20–25% and 28–38% more shikimate and ethylene, respectively, and presented greater 14C-glyphosate absorption and translocation, depending on the species, compared to plants treated with the tank mix treatment. Although doubling the field dose (720 + 480 g ha−1) improved (5–22%) the control of these weeds in the field, split applications of both premix and tank mix provided the best control levels (≤70%), but premix treatments maintained control levels above 85% for longer (120-d). No antagonism between glyphosate and 2,4-D was found. The addition of 2,4-D controlled both broadleaf species. For all parameters evaluated on the C. canadensis and E. ciliatum populations in the laboratory and in the field, the premix treatments showed better performance than the tank mix treatments. Premix formulations could reduce the environmental impact of herbicides used to control glyphosate resistant/tolerant weeds by decreasing the herbicide amount needed to achieve an acceptable weed control level.
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Format: | info:ar-repo/semantics/artículo biblioteca |
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Elsevier
2021-03-30T14:33:30Z
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Subjects: | Escarda, Herbicidas, Resistencia a los Herbicidas, Glifosato, Impacto Ambiental, 2,4-d, Weed Control, Herbicides, Resistance to Herbicides, Glyphosate, Environmental Impact, 2,4-D, Conyza canadensis, Epilobium, Control de Malezas, Ácido 2,4-diclorofenoxiacético, Epilobium ciliatum, |
Online Access: | http://hdl.handle.net/20.500.12123/9000 https://www.sciencedirect.com/science/article/abs/pii/S0269749121005959 https://doi.org/10.1016/j.envpol.2021.117013 |
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oai:localhost:20.500.12123-90002023-06-16T14:40:10Z Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum Palma Bautista, Candelario Cruz Hipólito, Hugo E. Alcántara de la Cruz, Ricardo Vázquez García, José Guadalupe Yanniccari, Marcos de Prado, Rafael Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum Premix or tank mix of glyphosate and 2,4-D are a good alternative to control glyphosate-resistant and -tolerant weeds; however, the combination of herbicides may increase the environmental impacts, since mixtures often have higher toxicity than a single herbicide. In addition, antagonism between these herbicides has also been reported. We compared the efficacy of a premix glyphosate+2,4-D formulation with respect to the tank mix of both herbicides on glyphosate-resistant Conyza canadensis and -tolerant Epilobium ciliatum populations in laboratory and field experiments. 2,4-D suppressed the glyphosate-resistance/tolerance of both species, whose populations presented similar responses to their susceptible counterparts (LD50 ≥ 480+320 g ha−1 glyphosate + 2,4-D, respectively). Plants of both species treated with the premix formulations retained ∼100-μL more herbicide solution, accumulated 20–25% and 28–38% more shikimate and ethylene, respectively, and presented greater 14C-glyphosate absorption and translocation, depending on the species, compared to plants treated with the tank mix treatment. Although doubling the field dose (720 + 480 g ha−1) improved (5–22%) the control of these weeds in the field, split applications of both premix and tank mix provided the best control levels (≤70%), but premix treatments maintained control levels above 85% for longer (120-d). No antagonism between glyphosate and 2,4-D was found. The addition of 2,4-D controlled both broadleaf species. For all parameters evaluated on the C. canadensis and E. ciliatum populations in the laboratory and in the field, the premix treatments showed better performance than the tank mix treatments. Premix formulations could reduce the environmental impact of herbicides used to control glyphosate resistant/tolerant weeds by decreasing the herbicide amount needed to achieve an acceptable weed control level. EEA Barrow Fil: Palma Bautista, Candelario. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; España Fil: Cruz Hipólito, Hugo E. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; España Fil: Alcántara de la Cruz, Ricardo. Universidade Federal de São Carlos. Departamento de Química; Brasil Fil: Vázquez García, José G. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; España Fil: Yanniccari, Marcos Ezequiel. Consejo Nacional de Investigaciones Científicas y Técnicas. Laboratorio de Biotecnología y Genética Vegetal; Argentina. Fil: Yanniccari, Marcos Ezequiel. Instituto Nacional de Tecnología Agropecuaria (INTA). Chacra Experimental Integrada Barrow; Argentina Fil: de Prado, Rafael. Universidad de Córdoba. Departamento de Química Agrícola y Edafología; España info:eu-repo/date/embargoEnd/2023-03-30 2021-03-30T14:33:30Z 2021-03-30T14:33:30Z 2021-07 info:ar-repo/semantics/artículo info:eu-repo/semantics/article info:eu-repo/semantics/acceptedVersion http://hdl.handle.net/20.500.12123/9000 https://www.sciencedirect.com/science/article/abs/pii/S0269749121005959 0269-7491 1873-6424 https://doi.org/10.1016/j.envpol.2021.117013 eng info:eu-repo/semantics/openAccess application/pdf Elsevier Environmental Pollution 281 : 117013 (July 2021) |
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Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum |
spellingShingle |
Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum Palma Bautista, Candelario Cruz Hipólito, Hugo E. Alcántara de la Cruz, Ricardo Vázquez García, José Guadalupe Yanniccari, Marcos de Prado, Rafael Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
description |
Premix or tank mix of glyphosate and 2,4-D are a good alternative to control glyphosate-resistant and -tolerant weeds; however, the combination of herbicides may increase the environmental impacts, since mixtures often have higher toxicity than a single herbicide. In addition, antagonism between these herbicides has also been reported. We compared the efficacy of a premix glyphosate+2,4-D formulation with respect to the tank mix of both herbicides on glyphosate-resistant Conyza canadensis and -tolerant Epilobium ciliatum populations in laboratory and field experiments. 2,4-D suppressed the glyphosate-resistance/tolerance of both species, whose populations presented similar responses to their susceptible counterparts (LD50 ≥ 480+320 g ha−1 glyphosate + 2,4-D, respectively). Plants of both species treated with the premix formulations retained ∼100-μL more herbicide solution, accumulated 20–25% and 28–38% more shikimate and ethylene, respectively, and presented greater 14C-glyphosate absorption and translocation, depending on the species, compared to plants treated with the tank mix treatment. Although doubling the field dose (720 + 480 g ha−1) improved (5–22%) the control of these weeds in the field, split applications of both premix and tank mix provided the best control levels (≤70%), but premix treatments maintained control levels above 85% for longer (120-d). No antagonism between glyphosate and 2,4-D was found. The addition of 2,4-D controlled both broadleaf species. For all parameters evaluated on the C. canadensis and E. ciliatum populations in the laboratory and in the field, the premix treatments showed better performance than the tank mix treatments. Premix formulations could reduce the environmental impact of herbicides used to control glyphosate resistant/tolerant weeds by decreasing the herbicide amount needed to achieve an acceptable weed control level. |
format |
info:ar-repo/semantics/artículo |
topic_facet |
Escarda Herbicidas Resistencia a los Herbicidas Glifosato Impacto Ambiental 2,4-d Weed Control Herbicides Resistance to Herbicides Glyphosate Environmental Impact 2,4-D Conyza canadensis Epilobium Control de Malezas Ácido 2,4-diclorofenoxiacético Epilobium ciliatum |
author |
Palma Bautista, Candelario Cruz Hipólito, Hugo E. Alcántara de la Cruz, Ricardo Vázquez García, José Guadalupe Yanniccari, Marcos de Prado, Rafael |
author_facet |
Palma Bautista, Candelario Cruz Hipólito, Hugo E. Alcántara de la Cruz, Ricardo Vázquez García, José Guadalupe Yanniccari, Marcos de Prado, Rafael |
author_sort |
Palma Bautista, Candelario |
title |
Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
title_short |
Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
title_full |
Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
title_fullStr |
Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
title_full_unstemmed |
Comparison of premix glyphosate and 2,4-D formulation and direct tank mixture for control of Conyza canadensis and Epilobium ciliatum |
title_sort |
comparison of premix glyphosate and 2,4-d formulation and direct tank mixture for control of conyza canadensis and epilobium ciliatum |
publisher |
Elsevier |
publishDate |
2021-03-30T14:33:30Z |
url |
http://hdl.handle.net/20.500.12123/9000 https://www.sciencedirect.com/science/article/abs/pii/S0269749121005959 https://doi.org/10.1016/j.envpol.2021.117013 |
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