Control of glyphosate-resistant common ragweed in corn with preemergence herbicides

Nader Soltani; Lynette Brown; Peter H. Sikkema

doi:10.1139/cjps-2017-0325

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Nader Soltani,^1,* Lynette Brown,¹ Peter H. Sikkema¹

¹University of Guelph Ridgetown Campus, Ridgetown, ON N0P 2C0, Canada.

^*Corresponding author: Nader Soltani (email: soltanin@uoguelph.ca).

Abstract

Four field experiments were conducted during 2016 and 2017 to evaluate the efficacy of preemergence herbicides to control glyphosate-resistant common ragweed in corn. Dicamba, dicamba/atrazine, mesotrione + atrazine, isoxaflutole + atrazine, saflufenacil/dimethenamid-P, and S-metolachlor/mesotrione/bicyclopyrone/atrazine were the most efficacious herbicides, providing 94%–100% control of GR common ragweed and reducing density and biomass 98%–100%.

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Citation Download Citation

Nader Soltani, Lynette Brown, and Peter H. Sikkema "Control of glyphosate-resistant common ragweed in corn with preemergence herbicides," Canadian Journal of Plant Science 98(4), 959-962, (19 March 2018). https://doi.org/10.1139/cjps-2017-0325

Received: 25 October 2017; Accepted: 29 January 2018; Published: 19 March 2018