COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT
| Autor(a) principal: | |
|---|---|
| Data de Publicação: | 2019 |
| Outros Autores: | , |
| Tipo de documento: | Artigo |
| Idioma: | eng |
| Título da fonte: | Revista Caatinga |
| Texto Completo: | https://periodicos.ufersa.edu.br/caatinga/article/view/7612 |
Resumo: | Citrus black spot (CBS) is a disease caused by the Phyllosticta citricarpa fungus that causes lesions in fruits and, in more severe stages, fruit drops. The use of systemic fungicides is the main control measure for CBS; however, an alternative control measure is the use of cupric fungicides applied alone with short intervals. Therefore, the objective of the present work was to evaluate the effect of applications of copper oxychloride at different rates on the control of CBS. The experiment was conducted in Bebedouro, SP, Brazil, in the 2014/2015 crop season, in a randomized block design, using a Citrus sinensis variety (Valencia). The treatments consisted of copper rates (zero - control; 31, 24.5, 18.5, 12.2, and 9.1 mg of metal copper per cubic meter of canopy) using copper oxychloride (concentrated suspension - CS; 588 g L-1 of copper oxychloride or 350 g L-1 of metal copper), and an additional treatment with application of a cupric fungicide (cuprous oxide) and a strobilurin fungicide. The applications were carried out with 14-day intervals, starting when 2/3 of the petals of the plant's flowers were fallen, totaling 14 applications. The incidence and severity of CBS were evaluated five times with 30-day intervals up to mid-November, when the fruits were harvested. The data were used to calculate the area under the disease progress curve (AUDPC). Applications of copper oxychloride CS at rates of 31 and 24.5 mg m-3 with 14-day intervals are efficient for the control of CBS, with similar efficiency to the farm standard treatment. |
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COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOTAPLICAÇÃO ISOLADA DE OXICLORETO DE COBRE NO CONTROLE DA MANCHA PRETA DOS CITROSCitrus sinensis. Chemical control. Fungicide. Phyllosticta citricarpa.Citrus sinensis. Controle químico. Oxicloreto de cobre. Phyllosticta citricarpa.Citrus black spot (CBS) is a disease caused by the Phyllosticta citricarpa fungus that causes lesions in fruits and, in more severe stages, fruit drops. The use of systemic fungicides is the main control measure for CBS; however, an alternative control measure is the use of cupric fungicides applied alone with short intervals. Therefore, the objective of the present work was to evaluate the effect of applications of copper oxychloride at different rates on the control of CBS. The experiment was conducted in Bebedouro, SP, Brazil, in the 2014/2015 crop season, in a randomized block design, using a Citrus sinensis variety (Valencia). The treatments consisted of copper rates (zero - control; 31, 24.5, 18.5, 12.2, and 9.1 mg of metal copper per cubic meter of canopy) using copper oxychloride (concentrated suspension - CS; 588 g L-1 of copper oxychloride or 350 g L-1 of metal copper), and an additional treatment with application of a cupric fungicide (cuprous oxide) and a strobilurin fungicide. The applications were carried out with 14-day intervals, starting when 2/3 of the petals of the plant's flowers were fallen, totaling 14 applications. The incidence and severity of CBS were evaluated five times with 30-day intervals up to mid-November, when the fruits were harvested. The data were used to calculate the area under the disease progress curve (AUDPC). Applications of copper oxychloride CS at rates of 31 and 24.5 mg m-3 with 14-day intervals are efficient for the control of CBS, with similar efficiency to the farm standard treatment.A Mancha Preta dos Citros causada pelo fungo Phyllosticta citricarpa é uma doença que causa lesões em frutos e queda prematura em estágios mais severos. O uso de fungicidas sistêmicos é a principal medida de controle, porém a busca por um controle alternativo pode envolver a aplicação de fungicidas cúpricos isoladamente, em intervalos reduzidos. Sendo assim, o trabalho teve como objetivo verificar o controle de MPC mediante a aplicação de oxicloreto de cobre em diferentes concentrações. O experimento foi instalado no município de Bebedouro/SP durante a safra 2014/15, variedade ‘Valência’, em delineamento em blocos casualizados. Os tratamentos foram constituídos pelas concentrações: zero (testemunha), 31; 24,5; 18,5; 12,2 e 9,1 mg de cobre metálico/m3, tendo como referência o fungicida oxicloreto de cobre (588 g L-1 de oxicloreto de cobre ou 350 g de cobre metálico; formulação SC) e, um tratamento adicional, constituído pela aplicação do fungicida cúprico óxido cuproso e fungicida do grupo da estrobilurina. As aplicações foram realizadas em intervalos de catorze dias, iniciando em 2/3 pétalas caídas, perfazendo um total de 14 aplicações. Foram realizadas cinco avaliações de incidência e severidade em intervalos de 30 dias, estendendo-se até meados de novembro, quando foi realizada a colheita dos frutos. A partir desses dados foi calculada a área abaixo da curva de progresso da doença (AACPD). Concluiu-se que aplicações em intervalos de catorze dias de oxicloreto de cobre SC a 31 e 24,5 mg/m3 copa, foram eficientes no controle de MPC, cuja eficiência foi comparável ao tratamento padrão.Universidade Federal Rural do Semi-Árido2019-08-22info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersionapplication/pdfhttps://periodicos.ufersa.edu.br/caatinga/article/view/761210.1590/1983-21252019v32n306rcREVISTA CAATINGA; Vol. 32 No. 3 (2019); 616-624Revista Caatinga; v. 32 n. 3 (2019); 616-6241983-21250100-316Xreponame:Revista Caatingainstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSAenghttps://periodicos.ufersa.edu.br/caatinga/article/view/7612/10024Copyright (c) 2019 Revista Caatingainfo:eu-repo/semantics/openAccessFonseca, Antonio EduardoGoes, Antonio dePereira, Fernanda Dias2023-07-20T17:32:34Zoai:ojs.periodicos.ufersa.edu.br:article/7612Revistahttps://periodicos.ufersa.edu.br/index.php/caatinga/indexPUBhttps://periodicos.ufersa.edu.br/index.php/caatinga/oaipatricio@ufersa.edu.br|| caatinga@ufersa.edu.br1983-21250100-316Xopendoar:2024-04-29T09:46:35.916078Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA)true |
| dc.title.none.fl_str_mv |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT APLICAÇÃO ISOLADA DE OXICLORETO DE COBRE NO CONTROLE DA MANCHA PRETA DOS CITROS |
| title |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| spellingShingle |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT Fonseca, Antonio Eduardo Citrus sinensis. Chemical control. Fungicide. Phyllosticta citricarpa. Citrus sinensis. Controle químico. Oxicloreto de cobre. Phyllosticta citricarpa. |
| title_short |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| title_full |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| title_fullStr |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| title_full_unstemmed |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| title_sort |
COPPER OXYCHLORIDE APPLIED ALONE TO CONTROL CITRUS BLACK SPOT |
| author |
Fonseca, Antonio Eduardo |
| author_facet |
Fonseca, Antonio Eduardo Goes, Antonio de Pereira, Fernanda Dias |
| author_role |
author |
| author2 |
Goes, Antonio de Pereira, Fernanda Dias |
| author2_role |
author author |
| dc.contributor.author.fl_str_mv |
Fonseca, Antonio Eduardo Goes, Antonio de Pereira, Fernanda Dias |
| dc.subject.por.fl_str_mv |
Citrus sinensis. Chemical control. Fungicide. Phyllosticta citricarpa. Citrus sinensis. Controle químico. Oxicloreto de cobre. Phyllosticta citricarpa. |
| topic |
Citrus sinensis. Chemical control. Fungicide. Phyllosticta citricarpa. Citrus sinensis. Controle químico. Oxicloreto de cobre. Phyllosticta citricarpa. |
| description |
Citrus black spot (CBS) is a disease caused by the Phyllosticta citricarpa fungus that causes lesions in fruits and, in more severe stages, fruit drops. The use of systemic fungicides is the main control measure for CBS; however, an alternative control measure is the use of cupric fungicides applied alone with short intervals. Therefore, the objective of the present work was to evaluate the effect of applications of copper oxychloride at different rates on the control of CBS. The experiment was conducted in Bebedouro, SP, Brazil, in the 2014/2015 crop season, in a randomized block design, using a Citrus sinensis variety (Valencia). The treatments consisted of copper rates (zero - control; 31, 24.5, 18.5, 12.2, and 9.1 mg of metal copper per cubic meter of canopy) using copper oxychloride (concentrated suspension - CS; 588 g L-1 of copper oxychloride or 350 g L-1 of metal copper), and an additional treatment with application of a cupric fungicide (cuprous oxide) and a strobilurin fungicide. The applications were carried out with 14-day intervals, starting when 2/3 of the petals of the plant's flowers were fallen, totaling 14 applications. The incidence and severity of CBS were evaluated five times with 30-day intervals up to mid-November, when the fruits were harvested. The data were used to calculate the area under the disease progress curve (AUDPC). Applications of copper oxychloride CS at rates of 31 and 24.5 mg m-3 with 14-day intervals are efficient for the control of CBS, with similar efficiency to the farm standard treatment. |
| publishDate |
2019 |
| dc.date.none.fl_str_mv |
2019-08-22 |
| dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion |
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article |
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publishedVersion |
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https://periodicos.ufersa.edu.br/caatinga/article/view/7612 10.1590/1983-21252019v32n306rc |
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https://periodicos.ufersa.edu.br/caatinga/article/view/7612 |
| identifier_str_mv |
10.1590/1983-21252019v32n306rc |
| dc.language.iso.fl_str_mv |
eng |
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eng |
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https://periodicos.ufersa.edu.br/caatinga/article/view/7612/10024 |
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Copyright (c) 2019 Revista Caatinga info:eu-repo/semantics/openAccess |
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Copyright (c) 2019 Revista Caatinga |
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openAccess |
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application/pdf |
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Universidade Federal Rural do Semi-Árido |
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Universidade Federal Rural do Semi-Árido |
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REVISTA CAATINGA; Vol. 32 No. 3 (2019); 616-624 Revista Caatinga; v. 32 n. 3 (2019); 616-624 1983-2125 0100-316X reponame:Revista Caatinga instname:Universidade Federal Rural do Semi-Árido (UFERSA) instacron:UFERSA |
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Universidade Federal Rural do Semi-Árido (UFERSA) |
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Revista Caatinga |
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Revista Caatinga |
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Revista Caatinga - Universidade Federal Rural do Semi-Árido (UFERSA) |
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patricio@ufersa.edu.br|| caatinga@ufersa.edu.br |
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1797674027241701376 |