Reduction of white mold level on soybean by fungicide management strategies

Authors

  • Carlos Rafael Wutzki Universidade Estadual de Ponta Grossa
  • David de Souza Jaccoud Filho Universidade Estadual de Ponta Grossa
  • Ayrton Berger Neto Universidade Estadual de Ponta Grossa
  • Hamilton Edemundo Tullio Universidade Estadual de Ponta Grossa
  • Fernando Cezar Juliatti Universidade Federal de Uberlândia
  • Aguinaldo José do Nascimento Universidade Federal do Paraná

DOI:

https://doi.org/10.14393/BJ-v32n3a2016-32459

Abstract

The objective of this study was to verify the efficiency of the control of white mold on soybean with the use of fungicides applied alone and in rotation, at different growth stages and in a mixture of two active ingredients at three locations: Arapoti, PR, Mauá-da-Serra, PR and Pinhão, PR, Brazil. The fungicides used were carbendazim (Ca), thiophanate methyl (Tm), procymidone (Pr) and fluazinam (Fl). The experiments consisted on 17 treatments and 4 replications in a randomized block design. The analyzed variables were severity, incidence, number of sclerotia and yield. Mauá-da-Serra and Pinhão presented the highest incidences (31% and 29.8% in the control, respectively). At these two locations most of treatments with fungicides decreased the incidence and production of sclerotia, when compared to control; however, no differences in terms of yield were observed. Arapoti presented the lowest incidence (15.8% in the control) where most of treatments with fungicides did not present differences for the variables incidence, production of sclerotia and yield, when compared to the control. No differences were also observed for severity in any of three locations. In conclusion, fungicides applied in soybean areas with historically white mold incidence up to 31% can reduce the disease incidence and sclerotia production levels.

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Published

2016-06-01

How to Cite

WUTZKI, C.R., JACCOUD FILHO, D. de S., BERGER NETO, A., TULLIO, H.E., JULIATTI, F.C. and NASCIMENTO, A.J. do, 2016. Reduction of white mold level on soybean by fungicide management strategies . Bioscience Journal [online], vol. 32, no. 3, pp. 652–660. [Accessed28 November 2022]. DOI 10.14393/BJ-v32n3a2016-32459. Available from: https://seer.ufu.br/index.php/biosciencejournal/article/view/32459.

Issue

Section

Agricultural Sciences