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Volunteer Jerusalem Artichoke (Helianthus tuberosus) Interference and Control in Barley (Hordeum vulgare)

Published online by Cambridge University Press:  12 June 2017

David A. Wall  and
George H. Friesen
David A. Wall
Affiliation:
Agric. Can., Res. Stn., P.O. Box 3001, Morden, MB, Canada R0G 1J0
George H. Friesen
Affiliation:
Agric. Can., Res. Stn., P.O. Box 3001, Morden, MB, Canada R0G 1J0
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Abstract

Research conducted over 3 yr showed that volunteer Jerusalem artichoke was controlled effectively with clopyralid plus 2,4-D, dicamba plus 2,4-D, or 2,4-D alone applied postemergence at rates which did not injure spring barley. Glyphosate and paraquat applied preemergence to the crop did not reduce the number of Jerusalem artichoke shoots. Jerusalem artichoke which survived or escaped treatment was highly competitive with barley, as 4 to 6 surviving shoots/m2 could reduce seed yield 20%.

Keywords

Clopyralid, 3,6-dichloro-2-pyridinecarboxylic aciddicamba, 3,6-dichloro-2-methoxybenzoic acidglyphosate, N-(phosphonomethyl) glycineparaquat, 1,1′-dimethyl-4,4′-bipyridinium ion2,4-D, (2,4-dichlorophenoxy)acetic acidJerusalem artichoke, Helianthus tuberosus L. #3 HELTUbarley, Hordeum vulgare L. ‘Bedford’ # HORVSClopyraliddicambaglyphosateparaquat2,4-DHELTUHORVS
Type
Research
Information
Weed Technology , Volume 3 , Issue 1 , March 1989 , pp. 170 - 172
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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