Management of coffee leaf rust using L-glutamic acid biofertilizer combined with fungicide

Authors

  • Samanta Aparecida Cristiano Cabral Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais/IFSULDEMINAS, Campus Machado, Machado, MG, Brasil. https://orcid.org/0000-0001-5317-1717
  • Natália Moreira Mafra Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais/IFSULDEMINAS, Campus Carmo de Minas, Carmo de Minas, MG, Brasil. https://orcid.org/0000-0003-0083-0867
  • Beatriz Fagundes de Carvalho Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais/IFSULDEMINAS, Campus Machado, Machado, MG, Brasil. https://orcid.org/0000-0003-4645-2750
  • Dalilla Carvalho Rezende Instituto Federal de Educação, Ciência e Tecnologia do Sul de Minas Gerais/IFSULDEMINAS, Campus Machado, Machado, MG, Brasil. https://orcid.org/0000-0001-5572-4901

DOI:

https://doi.org/10.25186/.v17i.2049

Abstract

The use of biofertilizers is a potential tool for the management of crop diseases. Coffee leaf rust, which is commonly controlled by triazole and strobilurin fungicides, is one of the main phytosanitary challenges associated with coffee cultivation. However, the indiscriminate use of such fungicides may be harmful to the environment and human health, in addition to having a negative impact on coffee exports. The aim of this study was to evaluate the effect of foliar application of L-glutamic acid on the incidence and severity of coffee leaf rust in the southern region of Minas Gerais, Brazil. A biofertilizer made of sugarcane molasses fermented by the bacterium Corynebacterium glutamicumwas used in combination with 25% L-glutamic acid and a fungicide of the triazole group registered for crops. The experimental design adopted was randomized blocks with four replications (eight plants per replicate) and seven treatments: fungicides, control test, 0.8 L ha-1 of biofertilizer, combinations of 0.04, 0.06, 0.08, and 0.1 L ha-1 of biofertilizer and fungicide.Three treatments were initially applied in a preventive way, before the rainy season, and then at intervals of 60 days. After seven months of treatment, we observed that coffee leaf rust incidence was significantly lower in coffee plants treated with combined products when compared to treatments of either fungicide or biofertilizer only, with a reduction of 56% and 45%, respectively, being observed. Among the combinations of biofertilizer and fungicide, coffee leaf rust incidence reduced with an increase in the biofertilizer dose, such thatthe disease incidence in plants treated with a dose of 0.1 L ha-1was 58% lower than that in plants treated with fungicide only. No differences in disease severity were observed among the treatments. In conclusion, the use of a combination of biofertilizer and fungicide is more effective for the management of coffee leaf rust than the use of the isolated products.

Key words: Amino acid; Hemileia vastatrix; Incidence; Severity.

References

ALFONSI, W. M. et al. Período de incubação da ferrugem do cafeeiro. Summa Phytopathologica, 45(2):134-140, 2019.

ANDROCIOLI, H. G. et al. Produtos alternativos no controle da Hemileia Vastatrix (Berkeley & Broome) e Cercospora Coffeicola (Berkeley & Cooke) em cafeeiros. Coffee Science, 7(2):187-197, 2012.

BELAN, L. L. et al. Manejo nutricional aplicado ao manejo de doenças de plantas: Enfoque na cafeicultura. In: FERREIRA, A. et al. Tópicos especiais em produção vegetal VI. Alegre: CAUFES, p. 377-402, 2016.

BERGAMIN FILHO, A. et al. Epidemiologia de doenças de plantas. In: AMORIM. L; REZENDE. J. A. M.; BERGAMIM FILHO. A. Manual de fitopatologia: Princípios e conceitos, v. 1, 5 ed. São Paulo: Ceres, p. 71-84. 2018,

CAMPO VERDE. Data base of the Meteorological Station at Campo Verde Farm – Jodil Group. Campo do Meio, MG, Brazil, 2021.

CARVALHO, V. L.; CUNHA, R. L.; SILVA, N. R. N. Alternativas de controle de doenças do cafeeiro. Coffee Science, 7(1):42-49, 2012.

CONSELHO DOS EXPORTADORES DE CAFÉ - CECAFE. Relatório mensal fevereiro 2022: Exportações Brasileira. 2022. Available in: <https://www.cecafe.com.br/publicacoes/relatorio-de-exportacoes/>. Access in: March, 25, 2022.

COMPANHIA NACIONAL DE ABASTECIMENTO - CONAB. Acompanhamento da safra brasileira de café, v. 9, safra 2022, n. 1, primeiro levantamento janeiro 2022. Brasília: CONAB, 2022, 61p. Available in: <https://www.conab.gov.br/info-agro/safras/cafe>. Access in: March, 25, 2022.

COSTA, M. J. N.; ZAMBOLIM, L.; RODRIGUES, F. A. Avaliação de produtos alternativos no controle da ferrugem do cafeeiro. Fitopatologia Brasileira, 32:150-155, 2007.

CUNHA, R. L. et al. Desenvolvimento e validação de uma escala diagramática para avaliar a severidade da ferrugem (Hemileia vastatrix) do cafeeiro. In: Simpósio de pesquisa dos cafés do Brasil, Vitória, Embrapa Café, p. 1001-1008, 2001.

DREYER, A.; COELLO, N.; MONDIEL, E. Utilización de la metodologia de superfície de respuesta de la optimización de um medio de cultivo para la producción de L-lisin por Corynebacterium glutamicum. Agronomía Tropical, 50(2):167-188, 2000.

FERREIRA, D. F. Sisvar: A computer analysis system to fixed effects split plot type designs. Revista Brasileira de Biometria, 37(4):529-535, 2019.

MEDEIROS M. B.; LOPES J. S. Biofertilizantes líquidos e sustentabilidade agrícola. Bahia Agrícola, 7(3):24-25, 2006.

MORALES, R. G. F.; SANTOS, I.; TOMAZELI, V. N. Influência da nutrição mineral foliar sobre doenças da parte aérea da cultura do trigo. Revista Ceres, 59(1):71-76, 2012.

MOREIRA, P. C. et al. Produtividade e economia de fatores de produção na cafeicultura brasileira. Revista de Política Agrícola, 2(6):6-21, 2019.

POZZA, E. A.; POZZA, A. A. Manejo de doenças de plantas com macro e micronutrientes. Revista Brasileira de Fitopatologia, 28(1):52-54, 2003.

RUIZ-CÁRDENAS, R. A Cafeicultura e sua Relação com o Clima. 1 ed. Lavras: Artes Gráficas Formato LTDA, 2015. 23p.

SCOTT, A.; KNOTT, M. Cluster-analysis method for grouping means in analysis of variance. Biometrics, 30(3):507-512, 1974.

SHANER, G.; FINNEY, R. R. The effect of nitrogen fertilization on the expression of slow-mildewing in knox wheat. Phytopathology, 67(8):1052-1056, 1977.

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Published

2022-12-28

How to Cite

CABRAL, S. A. C.; MAFRA, N. M.; CARVALHO, B. F. de; REZENDE, D. C. Management of coffee leaf rust using L-glutamic acid biofertilizer combined with fungicide. Coffee Science - ISSN 1984-3909, [S. l.], v. 17, p. e172049, 2022. DOI: 10.25186/.v17i.2049. Disponível em: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/2049. Acesso em: 26 jan. 2023.