Synergism of mixtures of glyphosate and PROTOX inhibitor herbicides for morning-glory control

Authors

  • Mauricio Crestani Agostineto
  • Leonardo Bianco de Carvalho Universidade do Estado de Santa Catarina
  • Humberto Henrique Ansolin
  • Thiago Cavalcante Gomes Ribeiro de Andrade
  • Rodolfo Schmit

DOI:

https://doi.org/10.5965/223811711512016008

Keywords:

Ipomoea hederifolia, weed, chemical control, tank mixture.

Abstract

Weeds can cause significant agricultural yield losses, and the morning-glory species (Ipomoea spp.) has stood out in several crops. To control morning-glories we can use herbicides inhibiting the protoporphyrinogen IX oxidase enzyme in addition to glyphosate, a herbicide that this weed is intolerant to. The objective was to test the efficacy of application of isolates and mixtures of glyphosate (Roundup Original®) with carfentrazone-ethyl (Aurora®) and saflufenacil (Heat®) to control I. hederifolia in two weed growth stages. Treatments consisted of: isolated application of (i) carfentrazone-ethyl (50 and 75 mL l.h. ha-1), (ii) saflufenacil (35 and 50 g l.h. ha-1, and (iii) glyphosate (2 and 4 L l.h. ha-1; and mixtures of (iv) carfentrazone-ethyl+glyphosate and (v) saflufenacil+glyphosate (both in the lowest dose). Applications were performed on plants with 6-8 and 15-20 leaves, maintaining herbicide-free checks for both plant growth stages. Mixture of carfentrazone-ethyl and saflufenacil with glyphosate increases the efficacy of control of I. hederifolia, compared to herbicide isolate applications. Mixture of 2 L ha-1 + 50 mL ha-1 of glyphosate+carfentrazone-ethyl provides more efficient and faster control of I. hederifolia, mainly when the plants have 6-8 leaves.

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Published

2016-04-30

How to Cite

AGOSTINETO, Mauricio Crestani; CARVALHO, Leonardo Bianco de; ANSOLIN, Humberto Henrique; ANDRADE, Thiago Cavalcante Gomes Ribeiro de; SCHMIT, Rodolfo. Synergism of mixtures of glyphosate and PROTOX inhibitor herbicides for morning-glory control. Revista de Ciências Agroveterinárias, Lages, v. 15, n. 1, p. 8–15, 2016. DOI: 10.5965/223811711512016008. Disponível em: https://periodicos.udesc.br/index.php/agroveterinaria/article/view/223811711512016008. Acesso em: 13 nov. 2024.

Issue

Section

Research Article - Science of Plants and Derived Products

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