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Abstract
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 [ver mas...]
dc.contributor.authorParedes, Juan Andrés
dc.contributor.authorCazon, Luis Ignacio
dc.contributor.authorOddino, Claudio
dc.contributor.authorMonguillot, Joaquin Humberto
dc.contributor.authorRago, Alejandro Mario
dc.contributor.authorEdwards Molina, Juan Pablo
dc.date.accessioned2020-10-14T14:57:23Z
dc.date.available2020-10-14T14:57:23Z
dc.date.issued2020-09-28
dc.identifier.issn0261-2194
dc.identifier.otherhttps://doi.org/10.1016/j.cropro.2020.105403
dc.identifier.urihttp://hdl.handle.net/20.500.12123/8053
dc.identifier.urihttps://www.sciencedirect.com/science/article/abs/pii/S0261219420303367
dc.description.abstractPeanut 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.eng
dc.formatapplication/pdfes_AR
dc.language.isoenges_AR
dc.publisherElsevier
dc.rightsinfo:eu-repo/semantics/restrictedAccesses_AR
dc.sourceCrop Protection 140 : 105403 (February 2021)es_AR
dc.subjectChemical Controleng
dc.subjectPlant Diseaseseng
dc.subjectArachis Hypogaeaes_AR
dc.subjectArgentina
dc.subjectEnfermedades de las Plantas
dc.subjectControl Químico
dc.subjectControl de Enfermedades
dc.subjectDiseases Controleng
dc.subject.otherThecaphora Freziies_AR
dc.subject.otherIn Vitro Sensitivityeng
dc.subject.otherPeanuteng
dc.subject.otherPeanut Diseaseeng
dc.subject.otherManíes_AR
dc.titleEfficacy of fungicides against peanut smut in Argentinaes_AR
dc.typeinfo:ar-repo/semantics/artículoes_AR
dc.typeinfo:eu-repo/semantics/articlees_AR
dc.typeinfo:eu-repo/semantics/publishedVersiones_AR
dc.description.origenInstituto de Patología Vegetales_AR
dc.description.filFil: 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); Argentinaes_AR
dc.description.filFil: 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; Brasiles_AR
dc.description.filFil: 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); Argentinaes_AR
dc.description.filFil: 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); Argentinaes_AR
dc.description.filFil: 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); Argentinaes_AR
dc.description.filFil: Edwards Molina, Juan Pablo. Instituto Nacional de Tecnología Agropecuaria (INTA). Estación Experimental Agropecuaria Balcarce; Argentinaes_AR
dc.subtypecientifico


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