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13 May 2015 Field horsetail (Equisetum arvense L.) control in corn
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Abstract

Soltani, N., McNaughton, K. and Sikkema, P. H. 2015. Field horsetail (Equisetum arvense L.) control in corn. Can. J. Plant Sci. 95: 983-986. Six field trials were conducted during 2013 and 2014 on various Ontario farms with heavy field horsetail infestations to determine the effectiveness of various postemergence (POST) herbicides for the control of field horsetail in corn. There was minimal and transient corn injury (3% or less) with nicosulfuron/rimsulfuron, flumetsulam or nicosulfuron/rimsulfuron flumetsulam. In contrast, MCPA amine, nicosulfuron/rimsulfuron MCPA amine, flumetsulam MCPA amine, and nicosulfuron/rimsulfuron flumetsulam MCPA amine caused as much as 6% injury in corn. Nicosulfuron/rimsulfuron, flumetsulam, MCPA amine, nicosulfuron/rimsulfuron flumetsulam and nicosulfuron/rimsulfuron MCPA amine applied POST controlled field horsetail 22-68% and reduced density 27-64% and biomass 38-77%. Flumetsulam MCPA amine and nicosulfuron/rimsulfuron flumetsulam MCPA amine controlled field horsetail 69-83% and reduced density and biomass as much as 87%. Based on these results, flumetsulam MCPA amine and nicosulfuron/rimsulfuron flumetsulam MCPA amine provide the best and most consistent control of field horsetail in corn among POST herbicides evaluated.

Nader Soltani, Kris McNaughton, and Peter H. Sikkema "Field horsetail (Equisetum arvense L.) control in corn," Canadian Journal of Plant Science 95(5), 983-986, (13 May 2015). https://doi.org/10.1139/CJPS-2015-085
Received: 9 March 2015; Accepted: 1 May 2015; Published: 13 May 2015
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