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Weed Management in Peanut (Arachis hypogaea) with Pyridate and SAN 582 Systems

Published online by Cambridge University Press:  20 January 2017

Michael W. Edenfield ,
Daniel L. Colvin ,
Barry J. Brecke ,
Donn G. Shilling  and
Henry H. McLean
Michael W. Edenfield*
Affiliation:
Agronomy Department, University of Florida, Gainesville, FL 32611
Daniel L. Colvin
Affiliation:
Agronomy Department, University of Florida, Gainesville, FL 32611
Barry J. Brecke
Affiliation:
Novartis Crop Protection, Inc., 2949 N. County Rd. 1000E, Dewey, IL 61840
Donn G. Shilling
Affiliation:
Novartis Crop Protection, Inc., 2949 N. County Rd. 1000E, Dewey, IL 61840
Henry H. McLean
Affiliation:
Novartis Crop Protection, Inc., 2949 N. County Rd. 1000E, Dewey, IL 61840
*
Corresponding author's E-mail: mike.edenfield@aventis.com.
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Abstract

Field studies were conducted near Archer, FL, and Vienna, GA, in 1995 and 1996 to investigate pyridate and SAN 582 for weed management in peanut. At Archer, pyridate plus 2,4-DB applied 3 wk after emergence resulted in 75, 72, 59, and 85% early-season control of yellow nutsedge, Florida beggarweed, hairy indigo, and sicklepod, respectively. In Vienna, pyridate plus 2,4-DB resulted in 87 and 55% early-season control of yellow nutsedge and Florida beggarweed, respectively. At both Archer and Vienna, SAN 582 applied preplant incorporated prior to pyridate postemergence (POST) increased control of yellow nutsedge, Florida beggarweed, and hairy indigo; however, peanut yield was not improved. In greenhouse studies, pyridate plus 2,4-DB controlled prickly sida, common cocklebur, and ivyleaf morningglory. Reduced weed control was observed in greenhouse studies when SAN 582 was added to the pyridate plus 2,4-DB POST tank mix.

Keywords

PyridateSAN 582 (proposed common name dimethenamid), 2-chloro-N-[(1-methyl-2-methoxy)ethyl]-N-(2,4-dimethyl-thien-3-yl)-acetamide2,4-DBcommon cocklebur, Xanthium strumarium L. #3 XANSTFlorida beggarweed, Desmodium tortuosum (Sw.) DC. # DEDTOhairy indigo, Indigofera hirsuta Harvey # INDHIivyleaf morningglory, Ipomoea hederaceae (L.) Jacq. # IPOHEprickly sida, Sida spinosa L. # SIDSPsicklepod, Senna obtusifolia (L.) Irwin et Barneby # CASOByellow nutsedge, Cyperus esculentus L. # CYPESpeanut, Arachis hypogaea L. ‘GK-7’, ‘Marc III’, ‘Sunoleic 95R’, ‘Sunrunner’Application timingNIS, nonionic surfactantPPI, preplant incorporatedPRE, preemergencePOST, postemergenceWAE, weeks after emergenceWAT, weeks after treatment
Type
Research
Information
Weed Technology , Volume 15 , Issue 1 , March 2001 , pp. 13 - 18
Copyright
Copyright © Weed Science Society of America 

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