Control of Jerusalem Artichoke (Helianthus tuberosus) in Barley (Hordeum vulgare)

Field experiments were conducted over a 3-yr period to evaluate the efficacy of herbicides for the control of volunteer Jerusalem artichoke [Helianthus tuberosus (L.) # HELTU] in barley (Hordeum vulgare L.) and on summer fallow. In barley, Jerusalem artichoke was controlled with a single postemergen...

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Bibliographic Details
Published in:Weed science 1986-09, Vol.34 (5), p.761-764
Main Authors: Wall, David A., Kiehn, Ferdinand A., Friesen, George H.
Format: Article
Language:English
Subjects:
APPLICATION RATES
Artichokes
Barley
Biological and medical sciences
Chemical control
Corn
DOSE D'APPLICATION
DOSIS DE APLICACION
FALLOW SYSTEMS
Fallowing
Fundamental and applied biological sciences. Psychology
GLYPHOSATE
HELIANTHUS TUBEROSUS
HERBICIDAS
HERBICIDE
HERBICIDES
HORDEUM VULGARE
Parasitic plants. Weeds
Phytopathology. Animal pests. Plant and forest protection
Regrowth
SISTEMAS CON BARBECHO
Soybeans
SUMMER FALLOW
SYSTEME JACHERE
Tubers
Volunteerism
Weed control
Weed Control and Herbicide Technology
Weeds
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Summary:Field experiments were conducted over a 3-yr period to evaluate the efficacy of herbicides for the control of volunteer Jerusalem artichoke [Helianthus tuberosus (L.) # HELTU] in barley (Hordeum vulgare L.) and on summer fallow. In barley, Jerusalem artichoke was controlled with a single postemergence application of clopyralid (3,6-dichloro-2-pyridinecarboxylic acid) at 1 kg ae/ha, or at 0.5 kg/ha when combined with 2,4-D [(2,4-dichlorophenoxy)acetic acid] at 0.5 kg ae/ha. Dicamba (3,6-dichloro-2-methoxybenzoic acid) at 0.2 kg ae/ha plus 2,4-D at 0.4 kg/ha was also an effective combination. Split applications of 2,4-D at 0.4 kg/ha each were more effective than a single treatment at 0.8 kg/ha. On summer fallow, glyphosate [N-(phosphonomethyl)glycine] applied at 0.5 to 2 kg ai/ha, as a single or repeated treatment, provided only marginal control of Jerusalem artichoke during the season of treatment and, in one of three experiments, reduced regrowth in the year following treatment.
ISSN:0043-1745
1550-2759
DOI:10.1017/S0043174500067825