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Diclosulam Systems for Weed Management in Peanut (Arachis hypogaea L.)

Published online by Cambridge University Press:  20 January 2017

William A. Bailey  and
John W. Wilcut
William A. Bailey
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
John W. Wilcut*
Affiliation:
Crop Science Department, Box 7620, North Carolina State University, Raleigh, NC 27695-7620
*
Corresponding author's E-mail: john_wilcut@ncsu.edu
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Abstract

Field studies were conducted at Lewiston and Rocky Mount, NC, in 1996 and 1997 to evaluate weed control and peanut response to preplant incorporated (PPI) treatments of diclosulam alone and in systems with postemergence (POST) commercial standard herbicides. All plots received ethalfluralin PPI at 840 g ai/ha. In both years, ethalfluralin plus diclosulam PPI at 17 or 26 g ai/ha followed by (fb) acifluorfen plus bentazon POST, paraquat plus bentazon POST, or imazapic POST controlled common lambsquarters, ivyleaf morningglory, pitted morningglory, prickly sida, smooth pigweed, spurred anoda, and yellow nutsedge in a manner similar to or better than did the commercial standards of ethalfluralin PPI fb metolachlor preemergence (PRE) fb acifluorfen plus bentazon or ethalfluralin PPI fb acifluorfen plus bentazon POST. Yield from peanut treated with diclosulam systems that included POST herbicides was equivalent to or higher than that from peanut treated with ethalfluralin PPI fb metolachlor PRE fb acifluorfen plus bentazon POST or ethalfluralin PPI fb acifluorfen plus bentazon POST. Peanut exhibited excellent tolerance to diclosulam PPI at all rates.

Keywords

Acifluorfenbentazondiclosulamethalfluralinimazapicmetolachlorparaquatcommon lambsquarters, Chenopodium album L. #3 CHEALivyleaf morningglory, Ipomoea hederacea (L.) Jacq. # IPOHEpitted morningglory, Ipomoea lacunosa L. # IPOLAprickly sida, Sida spinosa L. # SIDSPsmooth pigweed, Amaranthus hybridus L. # AMACHspurred anoda, Anoda cristata (L.) Schlecht. # ANVCRyellow nutsedge, Cyperus esculentus L. # CYPESpeanut, Arachis hypogaea L. ‘NC 7’, ‘NC 10C’Herbicide injuryfb, followed byPOST, postemergencePPI, preplant incorporatedPRE, preemergence
Type
Research
Information
Weed Technology , Volume 16 , Issue 4 , December 2002 , pp. 807 - 814
Copyright
Copyright © Weed Science Society of America 

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