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Performance and Profitability of Fungicides for Managing Soybean White Mold: A 10-Year Summary of Cooperative Trials

Barro, Jhonatan P ; Meyer, Maurício C ; Godoy, Claúdia V ; Dias, Alfredo R ; Utiamada, Carlos M ; Jaccoud Filho, David de S ; Wruck, Dulândula S M ; Borges, Edson P ; Siqueri, Fabiano ; Juliatti, Fernando C ; Campos, Hércules D ; Junior, José N ; Carneiro, Luciana C ; da Silva, Luis H C P ; Martins, Mônica C ; Balardin, Ricardo S ; Zito, Roberto K ; Furlan, Silvânia H ; Venancio, Wilson S ; Del Ponte, Emerson M

Plant disease, 2019-09, Vol.103 (9), p.2212-2220 [Periódico revisado por pares]

United States

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Título:
Performance and Profitability of Fungicides for Managing Soybean White Mold: A 10-Year Summary of Cooperative Trials
Autor: Barro, Jhonatan P ; Meyer, Maurício C ; Godoy, Claúdia V ; Dias, Alfredo R ; Utiamada, Carlos M ; Jaccoud Filho, David de S ; Wruck, Dulândula S M ; Borges, Edson P ; Siqueri, Fabiano ; Juliatti, Fernando C ; Campos, Hércules D ; Junior, José N ; Carneiro, Luciana C ; da Silva, Luis H C P ; Martins, Mônica C ; Balardin, Ricardo S ; Zito, Roberto K ; Furlan, Silvânia H ; Venancio, Wilson S ; Del Ponte, Emerson M
Assuntos: Agriculture ; Ascomycota - drug effects ; Brazil ; Fungicides, Industrial - economics ; Fungicides, Industrial - pharmacology ; Fungicides, Industrial - standards ; Glycine max - microbiology ; Plant Diseases - prevention & control
É parte de: Plant disease, 2019-09, Vol.103 (9), p.2212-2220
Descrição: White mold, caused by , is a yield-limiting disease of soybean in Brazil. Uniform fungicide trials have been conducted annually since 2009. Data from 74 cooperative field trials conducted over a 10-year period were assembled. We selected five fungicides applied two times around flowering: dimoxystrobin plus boscalid (DIMO+BOSC), carbendazim plus procymidone (CARB+PROC), fluazinam (FLUZ), fluopyram (FLUO), and procymidone (PROC). For comparison, thiophanate-methyl (TMET) applied four times was also included as a low-cost treatment. Network models were fitted to the log of white mold incidence (percentages) and log of sclerotia mass data (grams/hectare) and to the nontransformed yield data (kilograms/hectare) for each treatment, including the untreated check. Back-transformation of the meta-analytic estimates indicated that the lowest and highest mean (95% confidence interval [CI]) percent reductions in incidence and sclerotia mass were 54.2 (49.3 to 58.7) and 51.6% (43.7 to 58.3) for TMET and 83.8 (79.1 to 87.5) and 87% (81.9 to 91.6) for CARB+PROC, respectively. The overall mean (95% CI) yield responses ranged from 323 kg/ha (247.4 to 400.3) for TMET to 626 kg/ha (521.7 to 731.7) for DIMO+BOSC, but the variance was significantly reduced by a binary variable (30% threshold) describing disease incidence in the untreated check. On average, an increment of 352 kg/ha was estimated for trials where the incidence was >30% compared with the low-disease scenario. Hence, the probability of breaking even on fungicide costs for the high-disease scenario was >65% for the more effective, but more expensive fungicide (FLUZ) than TMET. For the low-disease scenario, profitability was less likely and depended more on variations in fungicide cost and soybean price.
Editor: United States
Idioma: Inglês

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Performance and Profitability of Fungicides for Managing Soybean White Mold: A 10-Year Summary of Cooperative Trials

United States

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