Acibenzolar-S-methyl in control of rust and coffee plant cercosporiose in field conditions

Authors

  • Luiz Henrique Monteiro Fernandes Universidade Federal de Lavras
  • Mário Lúcio Vilela de Resende UFLA/DFP
  • Ricardo Borges Pereira UFLA/DFP
  • Bruno Henrique Garcia Costa UFLA/DFP
  • Ana Cristina Andrade Monteiro UFLA/DFP
  • Pedro Martins Ribeiro Júnior UFLA/DFP

Keywords:

Coffea arabica L., Hemileia vastatrix, Cercospora coffeicola, induction of resistance

Abstract

The objective of this study was to evaluate the effect of inducing resistance acibenzolar-S-methyl (ASM), associated or not with the fungicide azoxystrobin + cyproconazole base, the control of Cercospora leaf rust and coffee under field conditions. The test was conducted in two crop years (2007/2008 and 2008/2009), in commercial plantation with cultivar Mundo Novo. The treatments were: ASM (25 g ha-1) applied 5 times monthly (December-Aprilharvest each year); fungicide (500 mL ha-1) and fungicide mixture (500 mL ha-1) + ASM applied 3 times (December,February and April of each crop year), the fungicide mixture (500 mL ha-1) applied 3 times (December, February and April of each crop year) + ASM applied 5 times (December to April of each crop year) , the fungicide mixture (750mL ha-1) applied 2 times (December and March of each crop year) + ASM applied 5 times (December to April of each crop year) and untreated. The rust control (84%) provided by the ASM was statistically similar to the treatment withthe fungicide (94%) in low crop year (2008/2009), when the intensity of the disease was not as high as in the year of crop high (2007/2008). In high crop year, ASM not controlled the cercospora, whereas in low crop years controlled the cercosporiose this product (77%) of the fungicide lower form (92%) and their mixtures (89-94%). In low harvest year, the ASM can be used to control Cercospora leaf rust and coffee and compatibility presented with the fungicide azoxystrobin + cyproconazole.

Author Biography

Luiz Henrique Monteiro Fernandes, Universidade Federal de Lavras

Departamento de Fitopatologia

Fisiologia do Parasitismo

Published

2013-04-19

How to Cite

MONTEIRO FERNANDES, L. H.; VILELA DE RESENDE, M. L.; BORGES PEREIRA, R.; GARCIA COSTA, B. H.; ANDRADE MONTEIRO, A. C.; RIBEIRO JÚNIOR, P. M. Acibenzolar-S-methyl in control of rust and coffee plant cercosporiose in field conditions. Coffee Science - ISSN 1984-3909, [S. l.], v. 8, n. 1, p. 24–32, 2013. Disponível em: http://www.coffeescience.ufla.br/index.php/Coffeescience/article/view/309. Acesso em: 30 sep. 2022.

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Section

Articles