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Application Timing of Metribuzin, Chlorimuron, and Imazaquin for Common Cocklebur (Xanthium strumarium) Control

Published online by Cambridge University Press:  12 June 2017

Richard A. Wesley Jr. ,
David R. Shaw  and
William L. Barrentine
Richard A. Wesley Jr.
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
David R. Shaw
Affiliation:
Dep. Plant Pathol. Weed Sci., Miss. State Univ., Mississippi State, MS 39762
William L. Barrentine
Affiliation:
Delta Branch, Miss. Agric. For. Exp. Stn., Stoneville, MS 38776
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Abstract

Field experiments were conducted in 1986 and 1987 to evaluate the effect of herbicide rate (two-thirds and maximum labeled rate) and timing of application before soybean planting on common cocklebur control. In 1986, chlorimuron plus metribuzin at 50 plus 320 and 80 plus 480 g ai/ha and imazaquin at 90 g ai/ha applied at planting controlled common cocklebur better than when applied 4 weeks before planting (WBP). Imazaquin at 140 g/ha applied at planting controlled common cocklebur better than when applied 6 WBP. All treatments at two-thirds of the labeled rate applied at planting controlled common cocklebur comparable to the full labeled rate applied 2, 4, or 6 WBP. In 1987, all treatments applied 2 WBP controlled common cocklebur better than when applied 4, 6, or 8 WPB.

Keywords

Chlorimuron, 2-[[[[(4-chloro-6-methoxy-2-pyrimidinyl)amino] carbonyl] amino] sulfonyl] benzoic acidimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidmetribuzin, 4-amino-6-(1,1-dimethylethyl)-3-(methylthio)-1,2,4-triazin-5(4H)-onecommon cocklebur, Xanthium strumarium L. #3 XANSTsoybean, Glycine max (L.) Merr.Early preplantGlycine maxXANST
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 364 - 368
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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