Multiple Resistance to Synthetic Auxin Herbicides and Glyphosate in Parthenium hysterophorus Occurring in Citrus Orchards

Dominican farmers have started to apply synthetic auxin herbicides (SAHs) as the main alternative to mitigate the impacts of the occurrence of glyphosate-resistant (GR) Parthenium hysterophorus populations in citrus orchards. A GR P. hysterophorus population survived field labeled rates of glyphosat...

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Bibliographic Details
Published in:Journal of agricultural and food chemistry 2019-09, Vol.67 (36), p.10010-10017
Main Authors: Mora, Andrés D, Rosario, Jesús, Rojano-Delgado, Antonia M, Palma-Bautista, Candelario, Torra, Joel, Alcántara-de la Cruz, Ricardo, De Prado, Rafael
Format: Article
Language:English
Subjects:
2,4-Dichlorophenoxyacetic Acid - metabolism
2,4-Dichlorophenoxyacetic Acid - pharmacology
Asteraceae - drug effects
Asteraceae - metabolism
Citrus - growth & development
Dicamba - metabolism
Dicamba - pharmacology
Glycine - analogs & derivatives
Glycine - metabolism
Glycine - pharmacology
Glyphosate
Herbicide Resistance
Herbicides - metabolism
Herbicides - pharmacology
Indoleacetic Acids - metabolism
Indoleacetic Acids - pharmacology
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Summary:Dominican farmers have started to apply synthetic auxin herbicides (SAHs) as the main alternative to mitigate the impacts of the occurrence of glyphosate-resistant (GR) Parthenium hysterophorus populations in citrus orchards. A GR P. hysterophorus population survived field labeled rates of glyphosate, 2,4-dichlorophenoxyacetic acid (2,4-D), dicamba, and picloram, which showed poor control (50%), showing that metabolism of these herbicides was mediated by cytochrome P450 enzymes. This study reports, for the first time, multiple resistance to SAHs and glyphosate in P. hysterophorus.
ISSN:0021-8561
1520-5118
DOI:10.1021/acs.jafc.9b03988