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Efficacy and Economics of Common Bermudagrass (Cynodon dactylon) Control in Peanut (Arachis hypogaea)

Author: John W. Wilcut

  • Efficacy and Economics of Common Bermudagrass (Cynodon dactylon) Control in Peanut (Arachis hypogaea)

    ARTICLES

    Efficacy and Economics of Common Bermudagrass (Cynodon dactylon) Control in Peanut (Arachis hypogaea)

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Abstract

Field experiments were conducted in 1988 and 1989 to evaluate various postemergence graminicides for common bermudagrass (Cynodon dactylon (L). Pers.) control in peanuts (Arachis hypogaea). A single application of fluazifop-P [(R)-2-[4[[5-(trifluorornethyl)-2-pyridinyl]oxy]phenoxypropanoic acid] or clethodim [(E, E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy]imino] propyl]-5-[2-ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one] controlled approximately 25 to 30% more common bermudagrass than a single application of sethoxydim (2-[1-(ethoxyimino) butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one) or quizalofop [(±)-2-[4[(6-chloro-2-quinoxalinyl)oxy]phenoxy]propanoic acid]. Two graminicide applications were required for greater than 90% common bermudagrass control. Treatments which provided greater than 90% control included two applications of sethoxydim (0.31 followed by (fb) 0.31 kg ha-1 or 0.31 fb 0.16 kg ha-1), fluazifop-P (0.21 fb 0.21 kg ha-1) or 0.21 fb 0.11 kg ha-1), and clethodim (0.28 fb 0.28 kg ha-1). These same treatments provided complete common bermudagrass control when evaluated the following summer. Peanut yield and net return from a single graminicide application generally were not improved with two applications.

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Keywords: Economic analysis, Net returns, common bermudagrass, Cynondon dactylon, peanut Arachis hypogaea

How to Cite:

Wilcut, J., (1991) “Efficacy and Economics of Common Bermudagrass (Cynodon dactylon) Control in Peanut (Arachis hypogaea)”, Peanut Science 18(2), p.106-109. doi: https://doi.org/10.3146/i0095-3679-18-2-11

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Published on
01 Jul 1991
Peer Reviewed

Author Notes

2Storm (a mixture of 159 g acifluorfen and 320 g bentazon L-1). BASF Corp., 100 Cherry Hill Rd., Parsippany, NJ 07054.

3Agridex (a mixture of paraffin base petroleum oil, polyoxyethylate polyol fatty acid ester and polyol fatty ester). Helena Chem. Co., Memphis, TN.

4Dash spray tank adjuvant label, BASF Corp., 100 Cherry Hill Rd., Parsippany, NJ 07054.

5X-77 (a mixture of alkylaryl-polyoxyethylene glycols, free fatty acids, and isopropanol). Valent USA Corp., San Francisco, CA.