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Response of Peanut (Arachis hypogaea) and Selected Weeds to Diclosulam

Published online by Cambridge University Press:  12 June 2017

William A. Bailey ,
John W. Wilcut ,
David L. Jordan ,
Charles W. Swann  and
Vernon B. Langston
William A. Bailey
Affiliation:
Crop Science Department, Box 7620, North Carolina Slate University, Raleigh, NC 27695-7620
John W. Wilcut*
Affiliation:
Crop Science Department, Box 7620, North Carolina Slate University, Raleigh, NC 27695-7620
David L. Jordan
Affiliation:
Crop Science Department, Box 7620, North Carolina Slate University, Raleigh, NC 27695-7620
Charles W. Swann
Affiliation:
Tidewater Agricultural Experiment Station, Suffolk, VA 23437
Vernon B. Langston
Affiliation:
Dow AgroSciences, The Woodlands, TX, 77382
*
Corresponding author's E-mail: [email protected].
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Abstract

Field studies were conducted at five locations in North Carolina and Virginia during 1996 and 1997 to evaluate weed control, peanut (Arachis hypogaea) response, and peanut yield following diclosulam applied preplant incorporated (PPI) and in systems with commercial herbicide standards. All plots received a PPI treatment of ethalfluralin at 840 g ai/ha. Ethalfluralin plus diclosulam controlled entireleaf morningglory (Ipomoea hederacea var. integriuscula), ivyleaf morningglory (I. hederacea), pitted morningglory (I. lacunosa), common lambsquarters (Chenopodium album), eclipta (Eclipta prostrata), and prickly sida (Sida spinosa) as well as and frequently better than ethalfluralin PPI followed by (fb) acifluorfen plus bentazon postemergence (POST), paraquat plus bentazon early postemergence (EPOST) fb imazapic POST, or imazapic POST. Systems with ethalfluralin plus diclosulam PPI at 26 g ai/ha fb acifluorfen plus bentazon POST controlled a broader spectrum of weeds and yielded greater than systems of ethalfluralin PPI fb imazapic POST or ethalfluralin PPI fb acifluorfen plus bentazon POST. Peanut exhibited excellent tolerance to diclosulam PPI at 17, 26, or 35 g/ha.

Keywords

Acifluorfen, 5-[2-chloro-4-(trifluoromethyl)phenoxy]-2-nitrobenzoic acidparaquat, l,1′-dimethyl-4,4′-bipyridinium ioncommon lambsquarters, Chenopodium album L. ♯ CHEALeclipta, Eclipta prostrata L. ♯ ECLALprickly sida, Sida spinosa L. ♯ SIDSPivyleaf morningglory, Ipomoea hederacea L. Jacq. ♯ IPOHEpitted morningglory, Ipomoea lacunosa L. ♯ IPOLAHerbicide injuryweed controlyield2, 4-DBCHEALECLALIPOHEIPOHGIPOLASIDSPEPOST, early postemergencefb, followed byPOST, postemergencePPI, preplant incorporatedWAP, weeks after planting
Type
Research
Information
Weed Technology , Volume 13 , Issue 4 , December 1999 , pp. 771 - 776
Copyright
Copyright © 1999 by the Weed Science Society of America 

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References

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