Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia

ABSTRACT The prevalence and deficient control with glyphosate in some weeds in banana (Musa × paradisiaca L.) plantations in the Department of Magdalena, Colombia, have been evidenced. The susceptibility to glyphosate of prevalent weeds in farms with more than 10 yr of application of this herbicide...

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Autores principales:	Quintero-Pertuz,Irma, Hoyos,Verónica, Carbonó-Delahoz,Eduino, Plaza,Guido
Lenguaje:	English
Publicado:	Instituto de Investigaciones Agropecuarias, INIA 2021
Materias:	EPSPS Erigeron bonariensis Musa × paradisiaca resistance tolerance weed control.
Acceso en línea:	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200172
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spelling	oai:scielo:S0718-583920210002001722021-05-28Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, ColombiaQuintero-Pertuz,IrmaHoyos,VerónicaCarbonó-Delahoz,EduinoPlaza,Guido EPSPS Erigeron bonariensis Musa × paradisiaca resistance tolerance weed control. ABSTRACT The prevalence and deficient control with glyphosate in some weeds in banana (Musa × paradisiaca L.) plantations in the Department of Magdalena, Colombia, have been evidenced. The susceptibility to glyphosate of prevalent weeds in farms with more than 10 yr of application of this herbicide was evaluated. Seeds and propagules of adult plants of five weedy species were collected from farms where deficient glyphosate control was observed (populations with possible resistance) and in areas not cultivated or free of herbicide use (susceptible populations). Under controlled conditions, seedlings obtained from 17 populations were treated with a commercial dose of glyphosate (1440 g acid equivalent [ae] ha-1) or twice this dose (2880 g ae ha-1). At 21 d after application, populations with a relative fresh weight and survival greater than 20% and visual control lower than 80% were categorized as resistant populations. To determine the resistance factor (RF) in the resistant populations, bioassays were performed with increasing doses of the herbicide (0, 720, 1440, 2880, 5760, and 11 520 g ae ha-1). Populations of Echinochloa colona (L.) Link and Melothria pendula L. were sensitive to both doses, while the populations of Commelina erecta L. and Syngonium podophyllum Schott were not controlled, confirming glyphosate-tolerant. Populations of Erigeron bonariensis L., from uncultivated areas was susceptible, while those from farms were resistant. Glyphosate-resistance was confirmed in two populations of E. bonariensis, with respective RF of 3.5 and 8.6. The repetitive application of glyphosate for weed control in the Magdalena banana farms has contributed to the prevalence of tolerant species and the appearance of herbicide-resistant weeds.info:eu-repo/semantics/openAccessInstituto de Investigaciones Agropecuarias, INIAChilean journal of agricultural research v.81 n.2 20212021-06-01text/htmlhttp://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200172en10.4067/S0718-58392021000200172
institution	Scielo Chile
collection	Scielo Chile
language	English
topic	EPSPS Erigeron bonariensis Musa × paradisiaca resistance tolerance weed control.
spellingShingle	EPSPS Erigeron bonariensis Musa × paradisiaca resistance tolerance weed control. Quintero-Pertuz,Irma Hoyos,Verónica Carbonó-Delahoz,Eduino Plaza,Guido Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
description	ABSTRACT The prevalence and deficient control with glyphosate in some weeds in banana (Musa × paradisiaca L.) plantations in the Department of Magdalena, Colombia, have been evidenced. The susceptibility to glyphosate of prevalent weeds in farms with more than 10 yr of application of this herbicide was evaluated. Seeds and propagules of adult plants of five weedy species were collected from farms where deficient glyphosate control was observed (populations with possible resistance) and in areas not cultivated or free of herbicide use (susceptible populations). Under controlled conditions, seedlings obtained from 17 populations were treated with a commercial dose of glyphosate (1440 g acid equivalent [ae] ha-1) or twice this dose (2880 g ae ha-1). At 21 d after application, populations with a relative fresh weight and survival greater than 20% and visual control lower than 80% were categorized as resistant populations. To determine the resistance factor (RF) in the resistant populations, bioassays were performed with increasing doses of the herbicide (0, 720, 1440, 2880, 5760, and 11 520 g ae ha-1). Populations of Echinochloa colona (L.) Link and Melothria pendula L. were sensitive to both doses, while the populations of Commelina erecta L. and Syngonium podophyllum Schott were not controlled, confirming glyphosate-tolerant. Populations of Erigeron bonariensis L., from uncultivated areas was susceptible, while those from farms were resistant. Glyphosate-resistance was confirmed in two populations of E. bonariensis, with respective RF of 3.5 and 8.6. The repetitive application of glyphosate for weed control in the Magdalena banana farms has contributed to the prevalence of tolerant species and the appearance of herbicide-resistant weeds.
author	Quintero-Pertuz,Irma Hoyos,Verónica Carbonó-Delahoz,Eduino Plaza,Guido
author_facet	Quintero-Pertuz,Irma Hoyos,Verónica Carbonó-Delahoz,Eduino Plaza,Guido
author_sort	Quintero-Pertuz,Irma
title	Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
title_short	Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
title_full	Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
title_fullStr	Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
title_full_unstemmed	Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia
title_sort	susceptibility of weed populations to glyphosate in banana plantations of the department of magdalena, colombia
publisher	Instituto de Investigaciones Agropecuarias, INIA
publishDate	2021
url	http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-58392021000200172
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Susceptibility of weed populations to glyphosate in banana plantations of the Department of Magdalena, Colombia

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