Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay
The study evaluated the impact of fungicide programs (FPs) on disease control in soybean during the 2021/2022 season in La Paloma, Katueté and Nueva Esperanza (Canindeyú, Paraguay). The area under the disease progress curve (AUDPC) was evaluated for the predominant diseases, defoliation, and yield....
| Main Authors: | , , , , , , |
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| Format: | Online |
| Language: | eng |
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Facultad de Ciencias Agropecuarias
2025
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| Online Access: | https://revistas.unc.edu.ar/index.php/agris/article/view/44095 |
| _version_ | 1839026548087193600 |
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| author | Mendoza-Duarte, Marcos Javier Zarza-Cabrera, Andrea Celeste Arias Ruiz Díaz, Osmar René Arrua, Andrea Alejandra Fernández-Gamarra, Marta Alicia Lopez-Nicora, Horacio Daniel Enciso Maldonado, Guillermo Andrés |
| author_facet | Mendoza-Duarte, Marcos Javier Zarza-Cabrera, Andrea Celeste Arias Ruiz Díaz, Osmar René Arrua, Andrea Alejandra Fernández-Gamarra, Marta Alicia Lopez-Nicora, Horacio Daniel Enciso Maldonado, Guillermo Andrés |
| author_sort | Mendoza-Duarte, Marcos Javier |
| collection | Portal de Revistas |
| description | The study evaluated the impact of fungicide programs (FPs) on disease control in soybean during the 2021/2022 season in La Paloma, Katueté and Nueva Esperanza (Canindeyú, Paraguay). The area under the disease progress curve (AUDPC) was evaluated for the predominant diseases, defoliation, and yield. In addition, the control efficacy (CE) and the reduction in productivity (RP) were calculated. Variance analysis was conducted on factors FP, Location, and their interaction, using Tukey’s test at a 5 % error level for mean comparisons. Target spot (TS) and Cercospora leaf blight (CLB) were the predominant diseases in all locations. Asian soybean rust (ASR) occurred only in Nueva Esperanza and Katueté. FPs reduced AUDPC up to 64, 85 and 73 %, on average, for TS, ASR and CLB, respectively, leading to increased yield, on average, between 9 and 27 %, compared to the control. La Paloma achieved the highest yield (4651 kg ha-1) and lower defoliation (61 %), followed by Katueté (4330 kg ha-1 with 70 % of defoliation), and Nueva Esperanza (3739 kg ha-1 with 86 % of defoliation). This study provides strategies to optimize fungicide use in soybean management in Paraguay, highlighting sequential applications and rotation of modes of action. |
| format | Online |
| id | oai:ojs.revistas.unc.edu.ar:article-44095 |
| institution | Universidad Nacional de Cordoba |
| language | eng |
| publishDate | 2025 |
| publisher | Facultad de Ciencias Agropecuarias |
| record_format | ojs |
| spelling | oai:ojs.revistas.unc.edu.ar:article-440952025-01-03T22:53:21Z Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay Aplicación secuencial de fungicidas con diferentes modos de acción para el control de enfermedades de la soja en Canindeyú, Paraguay Mendoza-Duarte, Marcos Javier Zarza-Cabrera, Andrea Celeste Arias Ruiz Díaz, Osmar René Arrua, Andrea Alejandra Fernández-Gamarra, Marta Alicia Lopez-Nicora, Horacio Daniel Enciso Maldonado, Guillermo Andrés Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi The study evaluated the impact of fungicide programs (FPs) on disease control in soybean during the 2021/2022 season in La Paloma, Katueté and Nueva Esperanza (Canindeyú, Paraguay). The area under the disease progress curve (AUDPC) was evaluated for the predominant diseases, defoliation, and yield. In addition, the control efficacy (CE) and the reduction in productivity (RP) were calculated. Variance analysis was conducted on factors FP, Location, and their interaction, using Tukey’s test at a 5 % error level for mean comparisons. Target spot (TS) and Cercospora leaf blight (CLB) were the predominant diseases in all locations. Asian soybean rust (ASR) occurred only in Nueva Esperanza and Katueté. FPs reduced AUDPC up to 64, 85 and 73 %, on average, for TS, ASR and CLB, respectively, leading to increased yield, on average, between 9 and 27 %, compared to the control. La Paloma achieved the highest yield (4651 kg ha-1) and lower defoliation (61 %), followed by Katueté (4330 kg ha-1 with 70 % of defoliation), and Nueva Esperanza (3739 kg ha-1 with 86 % of defoliation). This study provides strategies to optimize fungicide use in soybean management in Paraguay, highlighting sequential applications and rotation of modes of action. Este estudio evaluó el impacto de programas de fungicidas (PFs) en el control de enfermedades en soja durante la temporada 2021/2022 en La Paloma, Katueté y Nueva Esperanza (Canindeyú-Paraguay). Se evaluó el área bajo la curva de progreso de la enfermedad (ABCPE), defoliación y rendimiento. Se calculó la eficacia de control (EC) y reducción de productividad (RP) mediante análisis de varianza, incluyendo PF, Localidad y su interacción, con la prueba de Tukey al 5 %. La mancha anillada (MA) y el tizón foliar por Cercospora (TFC) fueron las enfermedades predominantes en todas las localidades. La roya asiática de la soja (RAS) ocurrió solo en Nueva Esperanza y Katueté. Los PFs redujeron el ABCPE hasta 64, 85 y 73 %, en promedio, para MA, RAS y TFC, respectivamente, lo que llevó a un aumento del rendimiento promedio, entre el 9 y el 27 %, en comparación con el control. La Paloma logró el mayor rendimiento (4651 kg ha-1) y menor defoliación (61 %), seguido de Katueté (4330 kg ha-1, 70 %) y Nueva Esperanza (3739 kg ha-1, 86 %). Este estudio ofrece estrategias para optimizar el uso de fungicidas en soja en Paraguay, destacando aplicaciones secuenciales y rotación de modos de acción. Facultad de Ciencias Agropecuarias 2025-01-03 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion application/pdf https://revistas.unc.edu.ar/index.php/agris/article/view/44095 10.31047/1668.298x.v41.n2.44095 AgriScientia; Vol. 41 No. 2 (2024); 37-49 AgriScientia; Vol. 41 Núm. 2 (2024); 37-49 1668-298X 10.31047/1668.298x.v41.n2 eng https://revistas.unc.edu.ar/index.php/agris/article/view/44095/48395 Derechos de autor 2025 Marcos Javier Mendoza-Duarte, Andrea Celeste Zarza-Cabrera, Osmar René Arias Ruiz Díaz, Andrea Alejandra Arrua, Marta Alicia Fernández-Gamarra, Horacio Daniel Lopez-Nicora, Guillermo Andrés Enciso Maldonado https://creativecommons.org/licenses/by-sa/4.0 |
| spellingShingle | Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi Mendoza-Duarte, Marcos Javier Zarza-Cabrera, Andrea Celeste Arias Ruiz Díaz, Osmar René Arrua, Andrea Alejandra Fernández-Gamarra, Marta Alicia Lopez-Nicora, Horacio Daniel Enciso Maldonado, Guillermo Andrés Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title | Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title_alt | Aplicación secuencial de fungicidas con diferentes modos de acción para el control de enfermedades de la soja en Canindeyú, Paraguay |
| title_full | Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title_fullStr | Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title_full_unstemmed | Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title_short | Sequential application of fungicides with different modes of action for the control of soybean diseases in Canindeyú, Paraguay |
| title_sort | sequential application of fungicides with different modes of action for the control of soybean diseases in canindeyu paraguay |
| topic | Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi |
| topic_facet | Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi Cercospora kikuchii Corynespora cassiicola Glycine max Phakopsora pachyrhizi |
| url | https://revistas.unc.edu.ar/index.php/agris/article/view/44095 |
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