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


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.

Copyright © 1999 by the Weed Science Society of America 

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