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DC X2-5309 Organosilicone Adjuvant Improves Control of Kochia (Kochia scoparia) with Bentazon and Bromoxynil

Published online by Cambridge University Press:  12 June 2017

Rick A. Boydston  and
Kassim Al-Khatib
Rick A. Boydston
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Prosser, WA99350 and Wash. State Univ., Northwest Res. and Ext. Cent., Mt. Vernon, WA 98273
Kassim Al-Khatib
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Prosser, WA99350 and Wash. State Univ., Northwest Res. and Ext. Cent., Mt. Vernon, WA 98273
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Abstract

DC X2-5309 organosilicone adjuvant added at 1% (v/v) spray solution increased the efficacy of bentazon, pyridate, and terbacil on kochia in greenhouse trials. DC X2-5309 decreased the rain-free period needed after application of bentazon and bromoxynil to 6 and 1 h, respectively, and increased the uptake of 14C-bentazon and 14C-bromoxynil by kochia at 1, 3, 6, and 24 h after application compared with crop oil concentrate (COC). In field trials, bentazon and bromoxynil rates required to control equal amounts of kochia were reduced by half when adding DC X2-5309 compared with adding crop oil concentrate. DC X2-5309 added at 0.5% (v/v) spray solution with bentazon did not injure spearmint and controlled kochia equal to or better than bentazon with COC added at 1% (v/v) spray solution.

Keywords

Bentazon, 3-(1-methylethyl)-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxidebromoxynil, 3,5-dibromo-4-hydroxybenzonitrilepyridate, octyl O-(6-chloro-3-phenylpyridazin-4-yl)carbonothioateterbacil, 5-chloro-3-(1,1-dimethylethyl)-6-methyl-2,4(1H,3H)-pyrimidinedione)kochia, Kochia scoparia (L.) Schrad. # KCHSCspearmint, Mentha spicata L.Crop oil concentrateherbicide uptakerainfastnesspyridatesurfactantterbacilKCHSC
Type
Research
Information
Weed Technology , Volume 8 , Issue 1 , March 1994 , pp. 99 - 104
Copyright
Copyright © 1994 by the Weed Science Society of America 

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References

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