Meta-Analytic Modeling of the Decline in Performance of Fungicides for Managing Soybean Rust after a Decade of Use in Brazil

Meta-Analytic Modeling of the Decline in Performance of Fungicides for Managing Soybean Rust after a Decade of Use in Brazil

An apparent decline of fungicide performance for the control of soybean rust in Brazil has been reported but the rate at which it has occurred has not been formally quantified. Control efficacy and yield response to three fungicides applied as single active ingredients (a.i.)-azoxystrobin (AZOX), cy...

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Veröffentlicht in:Plant disease. - 1997. - 102(2018), 4 vom: 01. Apr., Seite 807-817
1. Verfasser: Dalla Lana, Felipe (VerfasserIn)
Weitere Verfasser: Paul, Pierce A, Godoy, Claudia V, Utiamada, Carlos M, da Silva, Luís Henrique C P, Siqueri, Fabiano V, Forcelini, Carlos A, Jaccoud-Filho, David de Souza, Miguel-Wruck, Dulândula S, Borges, Edson P, Juliatti, Fernando C, Campos, Hercules D, Nunes, José Jr, Carneiro, Luciana C, Canteri, Marcelo G, Ito, Margarida F, Meyer, Maurício C, Martins, Mônica C, Balardin, Ricardo S, Furlan, Silvânia H, Carlin, Valtemir J, Del Ponte, Emerson M
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2018
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article Meta-Analysis Fungicides, Industrial
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520 |a An apparent decline of fungicide performance for the control of soybean rust in Brazil has been reported but the rate at which it has occurred has not been formally quantified. Control efficacy and yield response to three fungicides applied as single active ingredients (a.i.)-azoxystrobin (AZOX), cyproconazole (CYPR), and tebuconazole (TEBU)-and four applied as mixtures-AZOX+CYPR, picoxystrobin + CYPR, pyraclostrobin + epoxiconazole, and trifloxystrobin + prothioconazole (TRIF+PROT)-were summarized using network meta-analytic models fitted to mean severity and yield data from 250 trials (10-year period). The effect of year was tested on both variables in a meta-regression model. Overall control efficacy ranged from 56 to 84%; the three single-a.i. fungicides performed the poorest (56 to 62%). Yield increase for single-a.i. fungicides was as low as 30% but ranged from 47 to 65% for the premixes. Significant declines in both variables were detected for all fungicides except TRIF+PROT. For TEBU, control efficacy (yield response) declined the most: 78% (18%) to 54% (8%) from 2004-05 to 2013-14. The recent surge of resistant populations of Phakopsora pachyrhizi to both demethylation inhibitor and quinone outside inhibitor fungicides is likely the driving force behind a significant decline after 4 years of fungicide use 
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700 1 |a Paul, Pierce A  |e verfasserin  |4 aut 
700 1 |a Godoy, Claudia V  |e verfasserin  |4 aut 
700 1 |a Utiamada, Carlos M  |e verfasserin  |4 aut 
700 1 |a da Silva, Luís Henrique C P  |e verfasserin  |4 aut 
700 1 |a Siqueri, Fabiano V  |e verfasserin  |4 aut 
700 1 |a Forcelini, Carlos A  |e verfasserin  |4 aut 
700 1 |a Jaccoud-Filho, David de Souza  |e verfasserin  |4 aut 
700 1 |a Miguel-Wruck, Dulândula S  |e verfasserin  |4 aut 
700 1 |a Borges, Edson P  |e verfasserin  |4 aut 
700 1 |a Juliatti, Fernando C  |e verfasserin  |4 aut 
700 1 |a Campos, Hercules D  |e verfasserin  |4 aut 
700 1 |a Nunes, José  |c Jr  |e verfasserin  |4 aut 
700 1 |a Carneiro, Luciana C  |e verfasserin  |4 aut 
700 1 |a Canteri, Marcelo G  |e verfasserin  |4 aut 
700 1 |a Ito, Margarida F  |e verfasserin  |4 aut 
700 1 |a Meyer, Maurício C  |e verfasserin  |4 aut 
700 1 |a Martins, Mônica C  |e verfasserin  |4 aut 
700 1 |a Balardin, Ricardo S  |e verfasserin  |4 aut 
700 1 |a Furlan, Silvânia H  |e verfasserin  |4 aut 
700 1 |a Carlin, Valtemir J  |e verfasserin  |4 aut 
700 1 |a Del Ponte, Emerson M  |e verfasserin  |4 aut 
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