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Brazilian isolates of Monilinia fructicola from peach do not present reduced sensitivity to iprodione

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A Publisher Correction to this article was published on 07 August 2019

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Abstract

The dicarboximide fungicide iprodione has been used in Brazilian peach orchards for more than three decades to control brown rot and there are no studies on sensitivity to Monilinia fructicola in the country. In addition, isolates with reduced sensitivity to other important groups of fungicides have already been reported in Brazilian isolates. The sensitivity of M. fructicola to iprodione was evaluated using discriminatory doses and concentration resulting in 50% inhibition of mycelial growth (EC50) values. In total, 174 isolates collected from the main peach production areas were characterized for fungicide sensitivity. Disease control efficacy (DCE) was determined by comparing lesion inhibition on iprodione treated fruits with those without fungicide treatment. No resistant phenotypes were found in the M. fructicola population and 71.8% of the isolates were extremely sensitive to iprodione. The EC50 values of the isolates ranged from 0.13 to 1.01 μg/mL. DCE in wounded and non-wounded fruit was greater than 85% providing an efficient control in controlled conditions. These results suggest that iprodione could be integrated into disease management programs to prevent the establishment of resistant populations as already reported to other fungicides.

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Change history

  • 07 August 2019

    Due to an unforeseen oversight, the articles listed below were initially incorrectly published in Vol. 153: Issue 1, This has been corrected.

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Acknowledgements

This study was financed in part by the Cordenação de Aperfeiçoamento de Pessoal de Nível Superior - Brazil (CAPES) - Finance Code 001. The last author received research fellowships from Conselho Nacional de Desenvolvimento Científico e Tecnológico - Brazil (CNPQ).

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Authors and Affiliations

  1. Department of Plant Pathology and Nematology, Escola Superior de Agricultura “Luiz de Queiroz”, Universidade de São Paulo, Piracicaba, SP, 13418-900, Brazil

    Pamela Suellen Salvador Dutra

  2. Department of Plant Science and Plant Protection, Universidade Federal do Paraná, Curitiba, PR, 80035-050, Brazil

    Wagner Vicente Pereira & Louise Larissa May De Mio

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  1. Pamela Suellen Salvador Dutra
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  2. Wagner Vicente Pereira
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  3. Louise Larissa May De Mio
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Correspondence to Pamela Suellen Salvador Dutra.

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Dutra, P.S.S., Pereira, W.V. & May De Mio, L.L. Brazilian isolates of Monilinia fructicola from peach do not present reduced sensitivity to iprodione. Eur J Plant Pathol 153, 1341–1346 (2019). https://doi.org/10.1007/s10658-018-01637-3

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  • DOI: https://doi.org/10.1007/s10658-018-01637-3

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