Is the chemical control of glyphosate-resistant hairy fleabane more efficient during pre-flowering or re-growth?

Authors

  • Liese de Vargas Pereira Secretaria Estadual da Agricultura, Pecuária e Irrigação do Rio Grande do Sul, Porto Alegre, RS, Brazil.
  • Leonardo Bianco de Carvalho Universidade Estadual Paulista
  • Taísa Dal Magro UCS

DOI:

https://doi.org/10.5965/223811711532016277

Keywords:

Conyza bonariensis, herbicides, growth stage.

Abstract

To test the efficacy of alternative herbicides for controlling of glyphosate-resistant Conyza bonariensis under different growth stages, we carried out an experiment in an apple orchard, in a factorial arrangement 2x5, consisting of: (i) two growth stages – pre-flowering and re-growth; and (ii) five herbicides – glyphosate, glufosinate, bentazon, diquat, and glyphosate+saflufenacil. Basagran, diquat, and glyphosate+saflufenacil were not efficient to control C. bonariensis in pre-flowering. Glufosinate, diquat, bentazon, and glyphosate+saflufenacil controlled C. bonariensis in re-growth. Just glufosinate showed efficient control (>90%) of C. bonariensis in both pre-flowering and re-growth. In general, control of C. bonariensis is more efficient in re-growth.

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Published

2016-11-11

How to Cite

PEREIRA, Liese de Vargas; CARVALHO, Leonardo Bianco de; DAL MAGRO, Taísa. Is the chemical control of glyphosate-resistant hairy fleabane more efficient during pre-flowering or re-growth?. Revista de Ciências Agroveterinárias, Lages, v. 15, n. 3, p. 277–280, 2016. DOI: 10.5965/223811711532016277. Disponível em: https://revistas.udesc.br/index.php/agroveterinaria/article/view/223811711532016277. Acesso em: 7 nov. 2024.

Issue

Section

Scientific Note

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