2,4-D antagonizes glyphosate in glyphosate-resistant barnyard grass Echinochloa colona

Jingbo Li, Heping Han, Lianyang Bai, Qin Yu

Research output: Contribution to journalComment/debatepeer-review

12 Citations (Scopus)

Abstract

Glyphosate is often tank-mixed with auxinic herbicide 2,4-D for grass and broadleaf weed control. Here we examined the possible interaction of 2,4-D and glyphosate in barnyard grass, Echinochloa colona (L.) Link. The results showed that 2,4-D antagonizes glyphosate remarkably in glyphosateresistant populations but only marginally in susceptible populations. This antagonism is related to reduced glyphosate uptake and (to a lesser extent) translocation. As 2,4-D has multiple, unpredictable effects on other herbicides, care must be taken when tank-mixing herbicides with 2,4-D.

Original languageEnglish
Pages (from-to)109-113
Number of pages5
JournalJournal of Pesticide Science
Volume45
Issue number2
DOIs
Publication statusPublished - 2020

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