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Registro Completo |
Biblioteca(s): |
Embrapa Algodão; Embrapa Soja. |
Data corrente: |
10/01/2018 |
Data da última atualização: |
10/01/2018 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
TERAMOTO, A.; MEYER, M. C.; SUASSUNA, N. D.; CUNHA, M. G. da. |
Afiliação: |
UFG; MAURICIO CONRADO MEYER, CNPSO; NELSON DIAS SUASSUNA, CNPA; UFG. |
Título: |
In vitro sensitivity of Corynespora cassiicola isolated from soybean to fungicides and field chemical control of target spot. |
Ano de publicação: |
2017 |
Fonte/Imprenta: |
Summa Phytopathologica, Botucatu, v. 43, n. 4, p. 281-289, 2017. |
DOI: |
10.1590/0100-5405/2195 |
Idioma: |
Inglês |
Notas: |
Título em português: Sensibilidade de Corynespora cassiicola isolado de soja a fungicidas in vitro e controle
químico de mancha-alvo da soja no campo. |
Conteúdo: |
Soybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control. There was a negative and significant correlation (-0.265) between target spot severity and soybean yield. The pathogen showed variability in sensitivity to the fungicide groups carboxamides (SDHI), triazoles (DMI) and strobilurins (QoI), which denotes a high risk of selection for resistance. MenosSoybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control... Mostrar Tudo |
Thesagro: |
Corynespora cassiicola; Fungicida; Fungo; Soja. |
Thesaurus Nal: |
Pesticide use reduction; Soybeans. |
Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/170804/1/Teramoto.pdf
|
Marc: |
LEADER 02708naa a2200253 a 4500 001 2084970 005 2018-01-10 008 2017 bl uuuu u00u1 u #d 024 7 $a10.1590/0100-5405/2195$2DOI 100 1 $aTERAMOTO, A. 245 $aIn vitro sensitivity of Corynespora cassiicola isolated from soybean to fungicides and field chemical control of target spot.$h[electronic resource] 260 $c2017 500 $aTítulo em português: Sensibilidade de Corynespora cassiicola isolado de soja a fungicidas in vitro e controle químico de mancha-alvo da soja no campo. 520 $aSoybean target spot (Corynespora cassiicola) has become an important disease in most soybean growing regions in Brazil. The sensitivity of 34 isolates of C. cassiicola to 11 fungicides was evaluated based on mycelial growth inhibition (boscalid, carbendazim, cyproconazole, fluopyram, fluxapyroxad, prothioconazole and thiophanate-methyl) or spore germination inhibition (azoxystrobin, picoxystrobin, pyraclostrobin and trifloxystrobin). In addition, the efficacy of five fungicides to control target spot was tested in four field trials carried out during three crop seasons: 2011/2012, 2012/2013 and 2013/2014. Fungal isolates were collected from soybean plants in several soybean growing areas in Brazil. The effective concentration of each fungicide to inhibit fungal growth or spore germination by 50% (EC50) was calculated for all isolates. Fluxapyroxad and prothioconazole provided the greatest mycelial growth inhibition and pyraclostrobin led to the lowest spore germination percentage, with the lowest EC50 values. At field experiments, cyproconazole and carbendazim showed target spot control ranging from 26% to 29%. On the other hand, fluxapyroxad and prothioconazole prevented an epidemic of the disease by 45% to 55%, respectively. In general, the efficacy of fungicides in the field reflected the in vitro sensitivity averages. Large sensitivity reduction was detected to benzimidazoles (MBC), indicating that this group of fungicides should no longer be used for target spot control. There was a negative and significant correlation (-0.265) between target spot severity and soybean yield. The pathogen showed variability in sensitivity to the fungicide groups carboxamides (SDHI), triazoles (DMI) and strobilurins (QoI), which denotes a high risk of selection for resistance. 650 $aPesticide use reduction 650 $aSoybeans 650 $aCorynespora cassiicola 650 $aFungicida 650 $aFungo 650 $aSoja 700 1 $aMEYER, M. C. 700 1 $aSUASSUNA, N. D. 700 1 $aCUNHA, M. G. da 773 $tSumma Phytopathologica, Botucatu$gv. 43, n. 4, p. 281-289, 2017.
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Registro original: |
Embrapa Soja (CNPSO) |
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Registro Completo
Biblioteca(s): |
Embrapa Agrobiologia. |
Data corrente: |
15/10/2008 |
Data da última atualização: |
02/02/2009 |
Tipo da produção científica: |
Artigo em Anais de Congresso / Nota Técnica |
Autoria: |
CAMARGO, A. B.; ZATORRE, N. P.; SAGGIN JÚNIOR, O. J.; SILVA, E. M. R. |
Afiliação: |
Anita Bueno de Camargo, UFRRJ; N. P. Zatorre, UFRRJ; Orivaldo José Saggin Júnior, Embrapa Agrobiologia; Eliane Maria Ribeiro da Silva, Embrapa Agrobiologia. |
Título: |
Comunidade de fungos micorrízicos arbusculares associados à diferentes cultivos em um sistema de produção agroecológico. |
Ano de publicação: |
2008 |
Fonte/Imprenta: |
In: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28., REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12., SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10., REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: anais. Londrina: Embrapa Soja: SBCS: IAPAR, UEL, 2008. |
Páginas: |
4 p. |
Descrição Física: |
1 CD-ROM. |
Idioma: |
Português |
Notas: |
Parceria: UFRRJ.
Organizado por: Adilson de Oliveira Júnior, Regina Maria Villas Bôas de Campos Leite, César de Castro, Fábio Álvares de Oliveira; Odilon Ferreira Saraiva. |
Thesagro: |
Micorriza Vesicular Arbuscular; Sistema de Produção. |
Categoria do assunto: |
-- |
Marc: |
LEADER 01112naa a2200193 a 4500 001 1630269 005 2009-02-02 008 2008 bl --- 0-- u #d 100 1 $aCAMARGO, A. B. 245 $aComunidade de fungos micorrízicos arbusculares associados à diferentes cultivos em um sistema de produção agroecológico. 260 $c2008 300 $a4 p.$c1 CD-ROM. 500 $aParceria: UFRRJ. Organizado por: Adilson de Oliveira Júnior, Regina Maria Villas Bôas de Campos Leite, César de Castro, Fábio Álvares de Oliveira; Odilon Ferreira Saraiva. 650 $aMicorriza Vesicular Arbuscular 650 $aSistema de Produção 700 1 $aZATORRE, N. P. 700 1 $aSAGGIN JÚNIOR, O. J. 700 1 $aSILVA, E. M. R. 773 $tIn: REUNIÃO BRASILEIRA DE FERTILIDADE DO SOLO E NUTRIÇÃO DE PLANTAS, 28., REUNIÃO BRASILEIRA SOBRE MICORRIZAS, 12., SIMPÓSIO BRASILEIRO DE MICROBIOLOGIA DO SOLO, 10., REUNIÃO BRASILEIRA DE BIOLOGIA DO SOLO, 7., 2008, Londrina. FertBio 2008: desafios para o uso do solo com eficiência e qualidade ambiental: anais. Londrina: Embrapa Soja: SBCS: IAPAR, UEL, 2008.
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