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Annual Grass Control with Preplant Incorporated and Preemergence Applications of Ethalfluralin and Pendimethalin in Peanut (Arachis hypogaea)

Published online by Cambridge University Press:  20 January 2017

Eric P. Prostko ,
W. Carroll Johnson III  and
Benjamin G. Mullinix Jr.
Eric P. Prostko*
Affiliation:
Georgia Cooperative Extension Service, Rural Development Center, P.O. Box 1209, Tifton, GA 31793
W. Carroll Johnson III
Affiliation:
USDA/ARS, P.O. Box 748, Tifton, GA
Benjamin G. Mullinix Jr.
Affiliation:
Coastal Plain Experiment Station, Tifton, GA
*
Corresponding author's E-mail: [email protected].
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Abstract

The efficacy of preemergence (PRE) applications of ethalfluralin or pendimethalin incorporated with irrigation was compared with mechanical preplant incorporated (PPI) applications at equivalent rates in peanut. PRE applications of herbicides followed by irrigation were as effective as PPI applications in controlling Texas panicum, southern crabgrass, and crowfootgrass. Split PPI/PRE applications of ethalfluralin were more effective than PPI applications in controlling Texas panicum in 2 of 3 yr. Sequential postemergence applications of clethodim or sethoxydim increased the control of Texas panicum when ethalfluralin or pendimethalin controlled Texas panicum less than 82%. No differences in peanut yield were observed between PPI or PRE applications of either ethalfluralin or pendimethalin.

Keywords

Clethodimethalfluralinpendimethalinsethoxydimcrowfootgrass, Dactyloctenium aegyptium (L.) Willd. #3 DTTAEsouthern crabgrass, Digitaria ciliaris (Retz.) Koel. # DIGSPTexas panicum, Panicum texanum Buckl. # PANTEpeanut, Arachis hypogaea L. ‘Georgia Green’Irrigationfb, followed byPPI, preplant incorporatedPRE, preemergencePOST, postemergence
Type
Research
Information
Weed Technology , Volume 15 , Issue 1 , March 2001 , pp. 36 - 41
Copyright
Copyright © Weed Science Society of America 

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