Effect of phytosanitary spray solution storage time on the viability of Beauveria bassiana conidia

Authors

  • Renan Zampiroli Universidade Federal de Uberlândia, campus Monte Carmelo. Engenheiro Agrônomo e mestrando em Agronomia
  • Cleyton Batista de Alvarenga Professor adjunto na Universidade Federal de Uberlândia.
  • Bruno Sérgio Vieira Universidade Federal de Uberlândia, campus Monte Carmelo.
  • Jair Rocha do Prado Universidade Federal de Uberlândia, campus Monte Carmelo.
  • Paula Cristina Natalino Rinaldi Universidade Federal de Uberlândia, campus Monte Carmelo.
  • Luiz Fernando Horácio Júnior Universidade Federal de Uberlândia, campus Monte Carmelo.

Abstract

Adverse weather conditions, or mechanical problems and decrease in the application rate, may increase the storage time of the spray solution in the sprayer tank. This study aimed to assess the effect of the phytosanitary spray solution storage on the germination of Beauveria bassiana conidia, with or without agricultural adjuvants. A completely randomized design was used, in a 13 x 5 factorial scheme, consisting of thirteen storage times (0, 4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44 and 48 h) and five compositions for the spray solution (B. bassiana, B. bassiana + Helper Neutrum, B. bassiana + TA-35, B. bassiana + Nimbus and B. bassiana + Orobor). The biological spray solution containing B. bassiana conidia and no adjuvants remained viable for use after preparation and the conidial germination decreased 9.2 times after 48 h when an adjuvant was added.

KEYWORDS: Entomopathogens, fungicide application technology, agricultural adjuvants.

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Author Biographies

Renan Zampiroli, Universidade Federal de Uberlândia, campus Monte Carmelo. Engenheiro Agrônomo e mestrando em Agronomia

Engenheiro Agrônomo e mestrando em Agronomia

Cleyton Batista de Alvarenga, Professor adjunto na Universidade Federal de Uberlândia.

Doutor em Engenharia Agrícola - com enfase em Máquinas e Mecanização Agrícola e Tecnologia de Aplicação de Agrotóxicos.

Bruno Sérgio Vieira, Universidade Federal de Uberlândia, campus Monte Carmelo.

Dr. em Fitopatologia e pesquisador na Universidade Federal de Uberlândia, campus Monte Carmelo.

Jair Rocha do Prado, Universidade Federal de Uberlândia, campus Monte Carmelo.

Dr. em Experimentação agropecuária e pesquisador na Universidade Federal de Uberlândia, campus Monte Carmelo

Paula Cristina Natalino Rinaldi, Universidade Federal de Uberlândia, campus Monte Carmelo.

Dra. em Engenharia agrícola e pesquisador na Universidade Federal de Uberlândia, campus Monte Carmelo

Luiz Fernando Horácio Júnior, Universidade Federal de Uberlândia, campus Monte Carmelo.

Graduando em Agronomia, Universidade Federal de Uberlândia, campus Monte Carmelo.

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Published

2019-10-07

How to Cite

ZAMPIROLI, R.; ALVARENGA, C. B. de; VIEIRA, B. S.; PRADO, J. R. do; RINALDI, P. C. N.; HORÁCIO JÚNIOR, L. F. Effect of phytosanitary spray solution storage time on the viability of Beauveria bassiana conidia. Pesquisa Agropecuária Tropical [Agricultural Research in the Tropics], Goiânia, v. 49, p. e55513, 2019. Disponível em: https://revistas.ufg.br/pat/article/view/55513. Acesso em: 17 jul. 2024.

Issue

Vol. 49 (2019)

Section

Research Article

License

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