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1 January 2000 Weed Control with CGA-152005 and Peanut (Arachis hypogaea) Response
W. JAMES GRICHAR, DAVID C. SESTAK, KEVIN BREWER, BRAD MINTON
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Abstract

Abstract: Field studies were conducted in 1994 and 1995 to evaluate CGA-152005 for weed control and effect on peanut (Arachis hypogaea) yield in Texas peanut production areas. CGA-152005 at 10 to 20 g/ha controlled eclipta (Eclipta prostrata), golden crownbeard (Verbesina enceliodes), and Palmer amaranth (Amaranthus palmeri) > 90% when applied preemergence (PRE) or soon after peanut emergence (EPOST). CGA-152005 postemergence (POST) controlled eclipta > 95%; sandhills amaranth (Amaranthus arenicola) 99%; golden crownbeard, pitted morningglory (Ipomoea lacunosa), and hophornbeam copperleaf (Acalypha ostryifolia) < 80%; and Palmer amaranth and ivyleaf morningglory (Ipomoea hederacea) from 37 to 89%. CGA-152005 injured peanut up to 37% and reduced yield up to 94%.

Nomenclature: CGA-152005 (proposed common name prosulfuron), 1-(4-methoxy-6-methyl-triazin-2-yl)-3-[2-(3,3,3-trifluoroprophyl)phenylsufonyl]urea; eclipta, Eclipta prostrata L. #3 ECLAL; golden crownbeard, Verbesina enceliodes (Cav.) Benth et Hook # VEREN; hophornbeam copperleaf, Acalypha ostryifolia Riddell # ACCOS; ivyleaf morningglory, Ipomoea hederacea (L.) Jacq. # IPOHE; Palmer amaranth, Amaranthus palmeri S. Wats. # AMAPA; pitted morningglory, Ipomoea lacunosa L. # IPOLA; sandhills amaranth, Amaranthus arenicola I.M. Johnst. # AMAAR; peanut, Arachis hypogaea L. ‘GK-7.’

Additional index words: Groundnut, preemergence, postemergence, weed management.

Abbreviations: EPOST, early postemergence; POST, postemergence; PPI, preplant incorporated; PRE, preemergence.

W. JAMES GRICHAR, DAVID C. SESTAK, KEVIN BREWER, and BRAD MINTON "Weed Control with CGA-152005 and Peanut (Arachis hypogaea) Response," Weed Technology 14(1), 218-222, (1 January 2000). https://doi.org/10.1614/0890-037X(2000)014[0218:WCWCAP]2.0.CO;2
Published: 1 January 2000
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