Efficacy of fungicides against peanut smut in Argentina

Autores
Paredes, Juan Andrés; Cazon, Luis Ignacio; Oddino, Claudio; Monguillot, Joaquin Humberto; Rago, Alejandro Mario; Edwards Molina, Juan Pablo
Año de publicación
2020
Idioma
inglés
Tipo de recurso
artículo
Estado
versión publicada
Descripción
Peanut smut, caused by Thecaphora frezii, increased its incidence and prevalence in the main growing region of Argentina in the last decade becoming the main peanut disease. Despite this fact, growers continue producing peanut without any disease management strategy, which is leading to a local accumulation of T. frezii inoculum. The goal of the present study was to assess the efficacy of 12 fungicides in controlling T. frezii. For this purpose, in vitro assays, pot, and field experiments were performed during 2014/15 and 2015/16. In vitro assays classified the fungicides regarding their capacity to inhibit T. frezii mycelium growth as: thiophanate-methyl – not fungitoxic (EC50 > 100); mancozeb – moderately fungitoxic (EC50 = 6.28); difenoconazole, propiconazole, cyproconazole, tebuconazole, picoxystrobin, azoxystrobin, kresoxim-methyl, pyraclostrobin, penthiopyrad, and chlorothalonil – highly fungitoxic (EC50 < 0.1). Azoxystrobin showed the highest control levels in pot experiments: 58.9% (2014/15) and 92% (2015/16). The greatest control efficiency in field experiments was observed for cyproconazole in 2015 and azoxystrobin in 2016, reducing peanut smut by 47.7% and 39.5%, respectively. Based on our results, chemical control can be considered as a moderately efficient practice which may complement the cultivar genetic resistance and cultural practices in an integrated approach for managing peanut smut.
Instituto de Patología Vegetal
Fil: Paredes, Juan Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Cazón, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina. Universidade Federal de Viçosa. Departamento de Fitopatologia; Brasil
Fil: Oddino, Claudio. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); Argentina
Fil: Monguillot, Joaquin Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Rago, Alejandro Mario.Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones Agropecuarias; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); Argentina
Fil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
Fuente
Crop Protection 140 : 105403 (February 2021)
Materia
Chemical Control
Plant Diseases
Diseases Control
Arachis Hypogaea
Argentina
Enfermedades de las Plantas
Control Químico
Control de Enfermedades
Thecaphora Frezii
Maní
In Vitro Sensitivity
Peanut
Peanut Disease
Nivel de accesibilidad
acceso restringido
Condiciones de uso
Repositorio
INTA Digital (INTA)
Institución
Instituto Nacional de Tecnología Agropecuaria
OAI Identificador
oai:localhost:20.500.12123/8053
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oai_identifier_str oai:localhost:20.500.12123/8053
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spelling Efficacy of fungicides against peanut smut in ArgentinaParedes, Juan AndrésCazon, Luis IgnacioOddino, ClaudioMonguillot, Joaquin HumbertoRago, Alejandro MarioEdwards Molina, Juan PabloChemical ControlPlant DiseasesDiseases ControlArachis HypogaeaArgentinaEnfermedades de las PlantasControl QuímicoControl de EnfermedadesThecaphora FreziiManíIn Vitro SensitivityPeanutPeanut DiseasePeanut smut, caused by Thecaphora frezii, increased its incidence and prevalence in the main growing region of Argentina in the last decade becoming the main peanut disease. Despite this fact, growers continue producing peanut without any disease management strategy, which is leading to a local accumulation of T. frezii inoculum. The goal of the present study was to assess the efficacy of 12 fungicides in controlling T. frezii. For this purpose, in vitro assays, pot, and field experiments were performed during 2014/15 and 2015/16. In vitro assays classified the fungicides regarding their capacity to inhibit T. frezii mycelium growth as: thiophanate-methyl – not fungitoxic (EC50 > 100); mancozeb – moderately fungitoxic (EC50 = 6.28); difenoconazole, propiconazole, cyproconazole, tebuconazole, picoxystrobin, azoxystrobin, kresoxim-methyl, pyraclostrobin, penthiopyrad, and chlorothalonil – highly fungitoxic (EC50 < 0.1). Azoxystrobin showed the highest control levels in pot experiments: 58.9% (2014/15) and 92% (2015/16). The greatest control efficiency in field experiments was observed for cyproconazole in 2015 and azoxystrobin in 2016, reducing peanut smut by 47.7% and 39.5%, respectively. Based on our results, chemical control can be considered as a moderately efficient practice which may complement the cultivar genetic resistance and cultural practices in an integrated approach for managing peanut smut.Instituto de Patología VegetalFil: Paredes, Juan Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); ArgentinaFil: Cazón, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina. Universidade Federal de Viçosa. Departamento de Fitopatologia; BrasilFil: Oddino, Claudio. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); ArgentinaFil: Monguillot, Joaquin Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); ArgentinaFil: Rago, Alejandro Mario.Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones Agropecuarias; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); ArgentinaFil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; ArgentinaElsevier2020-10-14T14:57:23Z2020-10-14T14:57:23Z2020-09-28info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionhttp://purl.org/coar/resource_type/c_6501info:ar-repo/semantics/articuloapplication/pdfhttp://hdl.handle.net/20.500.12123/8053https://www.sciencedirect.com/science/article/abs/pii/S02612194203033670261-2194https://doi.org/10.1016/j.cropro.2020.105403Crop Protection 140 : 105403 (February 2021)reponame:INTA Digital (INTA)instname:Instituto Nacional de Tecnología Agropecuariaenginfo:eu-repo/semantics/restrictedAccess2025-09-04T09:48:38Zoai:localhost:20.500.12123/8053instacron:INTAInstitucionalhttp://repositorio.inta.gob.ar/Organismo científico-tecnológicoNo correspondehttp://repositorio.inta.gob.ar/oai/requesttripaldi.nicolas@inta.gob.arArgentinaNo correspondeNo correspondeNo correspondeopendoar:l2025-09-04 09:48:39.017INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuariafalse
dc.title.none.fl_str_mv Efficacy of fungicides against peanut smut in Argentina
title Efficacy of fungicides against peanut smut in Argentina
spellingShingle Efficacy of fungicides against peanut smut in Argentina
Paredes, Juan Andrés
Chemical Control
Plant Diseases
Diseases Control
Arachis Hypogaea
Argentina
Enfermedades de las Plantas
Control Químico
Control de Enfermedades
Thecaphora Frezii
Maní
In Vitro Sensitivity
Peanut
Peanut Disease
title_short Efficacy of fungicides against peanut smut in Argentina
title_full Efficacy of fungicides against peanut smut in Argentina
title_fullStr Efficacy of fungicides against peanut smut in Argentina
title_full_unstemmed Efficacy of fungicides against peanut smut in Argentina
title_sort Efficacy of fungicides against peanut smut in Argentina
dc.creator.none.fl_str_mv Paredes, Juan Andrés
Cazon, Luis Ignacio
Oddino, Claudio
Monguillot, Joaquin Humberto
Rago, Alejandro Mario
Edwards Molina, Juan Pablo
author Paredes, Juan Andrés
author_facet Paredes, Juan Andrés
Cazon, Luis Ignacio
Oddino, Claudio
Monguillot, Joaquin Humberto
Rago, Alejandro Mario
Edwards Molina, Juan Pablo
author_role author
author2 Cazon, Luis Ignacio
Oddino, Claudio
Monguillot, Joaquin Humberto
Rago, Alejandro Mario
Edwards Molina, Juan Pablo
author2_role author
author
author
author
author
dc.subject.none.fl_str_mv Chemical Control
Plant Diseases
Diseases Control
Arachis Hypogaea
Argentina
Enfermedades de las Plantas
Control Químico
Control de Enfermedades
Thecaphora Frezii
Maní
In Vitro Sensitivity
Peanut
Peanut Disease
topic Chemical Control
Plant Diseases
Diseases Control
Arachis Hypogaea
Argentina
Enfermedades de las Plantas
Control Químico
Control de Enfermedades
Thecaphora Frezii
Maní
In Vitro Sensitivity
Peanut
Peanut Disease
dc.description.none.fl_txt_mv Peanut smut, caused by Thecaphora frezii, increased its incidence and prevalence in the main growing region of Argentina in the last decade becoming the main peanut disease. Despite this fact, growers continue producing peanut without any disease management strategy, which is leading to a local accumulation of T. frezii inoculum. The goal of the present study was to assess the efficacy of 12 fungicides in controlling T. frezii. For this purpose, in vitro assays, pot, and field experiments were performed during 2014/15 and 2015/16. In vitro assays classified the fungicides regarding their capacity to inhibit T. frezii mycelium growth as: thiophanate-methyl – not fungitoxic (EC50 > 100); mancozeb – moderately fungitoxic (EC50 = 6.28); difenoconazole, propiconazole, cyproconazole, tebuconazole, picoxystrobin, azoxystrobin, kresoxim-methyl, pyraclostrobin, penthiopyrad, and chlorothalonil – highly fungitoxic (EC50 < 0.1). Azoxystrobin showed the highest control levels in pot experiments: 58.9% (2014/15) and 92% (2015/16). The greatest control efficiency in field experiments was observed for cyproconazole in 2015 and azoxystrobin in 2016, reducing peanut smut by 47.7% and 39.5%, respectively. Based on our results, chemical control can be considered as a moderately efficient practice which may complement the cultivar genetic resistance and cultural practices in an integrated approach for managing peanut smut.
Instituto de Patología Vegetal
Fil: Paredes, Juan Andrés. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Cazón, Luis Ignacio. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina. Universidade Federal de Viçosa. Departamento de Fitopatologia; Brasil
Fil: Oddino, Claudio. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); Argentina
Fil: Monguillot, Joaquin Humberto. Instituto Nacional de Tecnología Agropecuaria (INTA). Instituto de Patología Vegetal; Argentina. Consejo Nacional de Investigaciones Científicas y Técnicas. Unidad de Fitopatología y Modelización Agrícola (UFYMA); Argentina
Fil: Rago, Alejandro Mario.Instituto Nacional de Tecnología Agropecuaria (INTA). Centro de Investigaciones Agropecuarias; Argentina. Universidad Nacional de Río Cuarto. Facultad de Agronomía y Veterinaria. Consejo Nacional de Investigaciones Cientificas Técnicas. Instituto de de Micología y Micotoxicología (IMICO); Argentina
Fil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentina
description Peanut smut, caused by Thecaphora frezii, increased its incidence and prevalence in the main growing region of Argentina in the last decade becoming the main peanut disease. Despite this fact, growers continue producing peanut without any disease management strategy, which is leading to a local accumulation of T. frezii inoculum. The goal of the present study was to assess the efficacy of 12 fungicides in controlling T. frezii. For this purpose, in vitro assays, pot, and field experiments were performed during 2014/15 and 2015/16. In vitro assays classified the fungicides regarding their capacity to inhibit T. frezii mycelium growth as: thiophanate-methyl – not fungitoxic (EC50 > 100); mancozeb – moderately fungitoxic (EC50 = 6.28); difenoconazole, propiconazole, cyproconazole, tebuconazole, picoxystrobin, azoxystrobin, kresoxim-methyl, pyraclostrobin, penthiopyrad, and chlorothalonil – highly fungitoxic (EC50 < 0.1). Azoxystrobin showed the highest control levels in pot experiments: 58.9% (2014/15) and 92% (2015/16). The greatest control efficiency in field experiments was observed for cyproconazole in 2015 and azoxystrobin in 2016, reducing peanut smut by 47.7% and 39.5%, respectively. Based on our results, chemical control can be considered as a moderately efficient practice which may complement the cultivar genetic resistance and cultural practices in an integrated approach for managing peanut smut.
publishDate 2020
dc.date.none.fl_str_mv 2020-10-14T14:57:23Z
2020-10-14T14:57:23Z
2020-09-28
dc.type.none.fl_str_mv info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
http://purl.org/coar/resource_type/c_6501
info:ar-repo/semantics/articulo
format article
status_str publishedVersion
dc.identifier.none.fl_str_mv http://hdl.handle.net/20.500.12123/8053
https://www.sciencedirect.com/science/article/abs/pii/S0261219420303367
0261-2194
https://doi.org/10.1016/j.cropro.2020.105403
url http://hdl.handle.net/20.500.12123/8053
https://www.sciencedirect.com/science/article/abs/pii/S0261219420303367
https://doi.org/10.1016/j.cropro.2020.105403
identifier_str_mv 0261-2194
dc.language.none.fl_str_mv eng
language eng
dc.rights.none.fl_str_mv info:eu-repo/semantics/restrictedAccess
eu_rights_str_mv restrictedAccess
dc.format.none.fl_str_mv application/pdf
dc.publisher.none.fl_str_mv Elsevier
publisher.none.fl_str_mv Elsevier
dc.source.none.fl_str_mv Crop Protection 140 : 105403 (February 2021)
reponame:INTA Digital (INTA)
instname:Instituto Nacional de Tecnología Agropecuaria
reponame_str INTA Digital (INTA)
collection INTA Digital (INTA)
instname_str Instituto Nacional de Tecnología Agropecuaria
repository.name.fl_str_mv INTA Digital (INTA) - Instituto Nacional de Tecnología Agropecuaria
repository.mail.fl_str_mv tripaldi.nicolas@inta.gob.ar
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score 12.623145

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