Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo)
Cucurbit downy mildew, caused by the oomycete Pseudoperonospora cubensis (Berck & Curtis) Rostovtsev, is one of the most important diseases of melons in Costa Rica. The control of downy mildew by the application of conventional fungicides in combination with resistance inducers was inves-tig...
| Autores: | , , |
|---|---|
| Tipo de recurso: | artículo |
| Estado: | Versión publicada |
| Fecha de publicación: | 2010 |
| País: | Costa Rica |
| Institución: | Universidad de Costa Rica |
| Repositorio: | Portal de Revistas UCR |
| Idioma: | español |
| OAI Identifier: | oai:portal.ucr.ac.cr:article/3629 |
| Acceso en línea: | https://revistas.ucr.ac.cr/index.php/agrocost/article/view/3629 |
| Access Level: | acceso abierto |
| Palabra clave: | Cucurbitáceas melón mildiú velloso Pseudoperonospora cubensis fungicidas inductores de resistencia vegetal Cucurbits melon downy mildew fungicides plant resistance inducers |
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Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) Evaluación de fungicidas convencionales e inductores de resistencia para el combate de mildiú velloso (Pseudoperonospora cubensis) en melón (Cucumis melo) |
| title |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| spellingShingle |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) Méndez Leiva, William Cucurbitáceas melón mildiú velloso Pseudoperonospora cubensis fungicidas inductores de resistencia vegetal Cucurbits melon downy mildew Pseudoperonospora cubensis fungicides plant resistance inducers |
| title_short |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| title_full |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| title_fullStr |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| title_full_unstemmed |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| title_sort |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo) |
| dc.creator.none.fl_str_mv |
Méndez Leiva, William Arauz, Luis Felipe Ríos, Rodrigo |
| author |
Méndez Leiva, William |
| author_facet |
Méndez Leiva, William Arauz, Luis Felipe Ríos, Rodrigo |
| author_role |
author |
| author2 |
Arauz, Luis Felipe Ríos, Rodrigo |
| author2_role |
author author |
| dc.subject.none.fl_str_mv |
Cucurbitáceas melón mildiú velloso Pseudoperonospora cubensis fungicidas inductores de resistencia vegetal Cucurbits melon downy mildew Pseudoperonospora cubensis fungicides plant resistance inducers |
| topic |
Cucurbitáceas melón mildiú velloso Pseudoperonospora cubensis fungicidas inductores de resistencia vegetal Cucurbits melon downy mildew Pseudoperonospora cubensis fungicides plant resistance inducers |
| description |
Cucurbit downy mildew, caused by the oomycete Pseudoperonospora cubensis (Berck & Curtis) Rostovtsev, is one of the most important diseases of melons in Costa Rica. The control of downy mildew by the application of conventional fungicides in combination with resistance inducers was inves-tigated on melon (Cucumis melo L.) cv. ‘Ruide ra’. Two systemic fungicides, mefenoxam (1.96 kg a.i.ha-1) and dimethomorph (0.45 kg a.i.ha-1), and a sequence of the protectant fungicides chlorothalonil/mancozeb (2.01/1.20 kg a.i.ha-1), were applied, by themselves or in combination with application of each of 3 resistance inducers, phosphite (1.01 kg a.i.ha-1), menadione sodium bisulphite (MSB, 0.14 kg a.i.ha-1) and acibenzo-lar-S methyl (ASM, 0.02 kg a.i.ha-1). Controls with no fungicides or no inducers were included in the experiment. Significant differences ( p < 0.05) in area under the disease progress curve (AUDPC) were observed among fungicides. The lowest values of AUDPC were obtained with the chlorothalonil/mancozeb sequence, and with dimethomorph. Mefenoxam was not effective. The combination with phosphite improved the efficacy of all the conventional fungicides. No effect in disease con-trol was observed with the application of MSB or ASM, either alone or combined with conventional fungicides. The treatments chlorothalonil/manco-zeb and dimethomorph were less expensive than other treatments with lower efficacy. |
| publishDate |
2010 |
| dc.date.none.fl_str_mv |
2010-04-23 |
| dc.type.none.fl_str_mv |
info:eu-repo/semantics/publishedVersion Article Artículo Text artículo original http://purl.org/coar/resource_type/c_6501 http://purl.org/coar/resource_type/c_2df8fbb1 info:eu-repo/semantics/article |
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article |
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publishedVersion |
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https://revistas.ucr.ac.cr/index.php/agrocost/article/view/3629 10.15517/rac.v34i2.3629 |
| url |
https://revistas.ucr.ac.cr/index.php/agrocost/article/view/3629 |
| identifier_str_mv |
10.15517/rac.v34i2.3629 |
| dc.language.none.fl_str_mv |
spa |
| language |
spa |
| dc.relation.none.fl_str_mv |
https://revistas.ucr.ac.cr/index.php/agrocost/article/view/3629/3534 |
| dc.rights.none.fl_str_mv |
Derechos de autor 2016 Agronomía Costarricense https://creativecommons.org/licenses/by-nc-nd/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 info:eu-repo/semantics/openAccess |
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Derechos de autor 2016 Agronomía Costarricense https://creativecommons.org/licenses/by-nc-nd/4.0 acceso abierto http://purl.org/coar/access_right/c_abf2 |
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openAccess |
| dc.format.none.fl_str_mv |
application/pdf |
| dc.publisher.none.fl_str_mv |
Universidad de Costa Rica |
| publisher.none.fl_str_mv |
Universidad de Costa Rica |
| dc.source.none.fl_str_mv |
Agronomía Costarricense; Agronomía Costarricense: Vol. 34, Issue 2 (July-December) Agronomía Costarricense; Agronomía Costarricense: Vol. 34, Nº 2 (Julio-Diciembre) 2215-2202 0377-9424 10.15517/rac.v34i2 reponame:Portal de Revistas UCR instname:Universidad de Costa Rica instacron:UCR |
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Universidad de Costa Rica |
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UCR |
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UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR |
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Portal de Revistas UCR - Universidad de Costa Rica |
| repository.mail.fl_str_mv |
jorge.polanco@ucr.ac.cr |
| _version_ |
1849325419997691904 |
| spelling |
Evaluation of conventional fungicides and disease resistance inducers for the control of downy mildew (Pseudoperonospora cubensis) on melon (Cucumis melo)Evaluación de fungicidas convencionales e inductores de resistencia para el combate de mildiú velloso (Pseudoperonospora cubensis) en melón (Cucumis melo)Méndez Leiva, WilliamArauz, Luis FelipeRíos, RodrigoCucurbitáceasmelónmildiú vellosoPseudoperonospora cubensisfungicidasinductores de resistencia vegetalCucurbitsmelondowny mildewPseudoperonospora cubensisfungicidesplant resistance inducersCucurbit downy mildew, caused by the oomycete Pseudoperonospora cubensis (Berck & Curtis) Rostovtsev, is one of the most important diseases of melons in Costa Rica. The control of downy mildew by the application of conventional fungicides in combination with resistance inducers was inves-tigated on melon (Cucumis melo L.) cv. ‘Ruide ra’. Two systemic fungicides, mefenoxam (1.96 kg a.i.ha-1) and dimethomorph (0.45 kg a.i.ha-1), and a sequence of the protectant fungicides chlorothalonil/mancozeb (2.01/1.20 kg a.i.ha-1), were applied, by themselves or in combination with application of each of 3 resistance inducers, phosphite (1.01 kg a.i.ha-1), menadione sodium bisulphite (MSB, 0.14 kg a.i.ha-1) and acibenzo-lar-S methyl (ASM, 0.02 kg a.i.ha-1). Controls with no fungicides or no inducers were included in the experiment. Significant differences ( p < 0.05) in area under the disease progress curve (AUDPC) were observed among fungicides. The lowest values of AUDPC were obtained with the chlorothalonil/mancozeb sequence, and with dimethomorph. Mefenoxam was not effective. The combination with phosphite improved the efficacy of all the conventional fungicides. No effect in disease con-trol was observed with the application of MSB or ASM, either alone or combined with conventional fungicides. The treatments chlorothalonil/manco-zeb and dimethomorph were less expensive than other treatments with lower efficacy. El mildiú velloso, causado por el oomicete Pseudoperonospora cubensis (Berck y Curtis) Rostovtsev, es una de las enfermedades más importantes en el cultivo de melón en Costa Rica. En la presente investigación se estudió el efecto de la aplicación de 2 fungicidas sistémicos convencionales, mefenoxam (1,96 kg i.a.ha-1) y dimethomorph (0,45 kg i.a.ha-1) y una secuencia de 2 fungicidas protectores, clorotalonil/mancozeb (2,01/1,20 kg i.a.ha-1), en combinación con 3 inductores de resistencia, fosfito (1,01 kg i.a.ha-1), menadiona bisulfito sodio (MBS) (0,14 kg i.a.ha-1), acibenzolar-S-metil (ASM) (0,02 kg i.a.ha-1), más un testigo sin fungicida y otro sin inductor, sobre la severidad de la enfermedad en el melón cv 'Ruidera'. Se encontraron diferencias significativas (p < 0,05) en el área bajo la curva de progreso de la enfermedad entre los tratamientos fungicidas. La menor severidad se observó con los tratamientos clorotalonil/mancozeb y dimethomorph, en comparación con el mefenoxam. El fosfito fue el único inductor que resultó en diferencias significativas con respecto a los otros inductores y al testigo sin aplicación de inductores. No se determinaron interacciones estadísticamente significativas entre los fungicidas y los inductores de resistencia. El tratamiento que mostró la mayor eficiencia en el combate de la enfermedad fue clorotalonil/mancozeb+fosfito, con 4 aplicaciones de fungicidas y 2 del inductor de resistencia. Este tratamiento tuvo un costo económico menor que otros menos eficientes en el combate de la enfermedad.Universidad de Costa Rica2010-04-23info:eu-repo/semantics/publishedVersionArticleArtículoTextartículo originalhttp://purl.org/coar/resource_type/c_6501http://purl.org/coar/resource_type/c_2df8fbb1info:eu-repo/semantics/articleapplication/pdfhttps://revistas.ucr.ac.cr/index.php/agrocost/article/view/362910.15517/rac.v34i2.3629Agronomía Costarricense; Agronomía Costarricense: Vol. 34, Issue 2 (July-December)Agronomía Costarricense; Agronomía Costarricense: Vol. 34, Nº 2 (Julio-Diciembre)2215-22020377-942410.15517/rac.v34i2reponame:Portal de Revistas UCRinstname:Universidad de Costa Ricainstacron:UCRspahttps://revistas.ucr.ac.cr/index.php/agrocost/article/view/3629/3534Derechos de autor 2016 Agronomía Costarricensehttps://creativecommons.org/licenses/by-nc-nd/4.0acceso abiertohttp://purl.org/coar/access_right/c_abf2info:eu-repo/semantics/openAccess2025-04-08T15:45:15Zoai:portal.ucr.ac.cr:article/3629Portal de revistashttps://revistas.ucr.ac.cr/Universidadhttp://www.ucr.ac.crhttps://revistas.ucr.ac.cr/index.php/index/oaijorge.polanco@ucr.ac.crCosta RicaNo aplicaNo aplicaNo aplicaopendoar:2025-08-13T10:33:15.117Portal de Revistas UCR - Universidad de Costa Ricafalse |
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15,811543 |