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Common Lambsquarters (Chenopodium album) and Rotational Crop Response to Imazethapyr in Pea (Pisum sativum) and Snap Bean (Phaseolus vulgaris)

Published online by Cambridge University Press:  12 June 2017

William K. Vencill ,
Henry P. Wilson ,
Thomas E. Hines  and
Kriton K. Hatzios
William K. Vencill
Affiliation:
East. Shore Agric. Exp. Stn., Painter, VA 23420
Henry P. Wilson
Affiliation:
East. Shore Agric. Exp. Stn., Painter, VA 23420
Thomas E. Hines
Affiliation:
East. Shore Agric. Exp. Stn., Painter, VA 23420
Kriton K. Hatzios
Affiliation:
Dep. Plant Pathol. Physiol. and Weed Sci., Va. Polytech. Inst. State Univ., Blacksburg, VA 24061
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Abstract

Field studies were conducted in 1987 and 1988 to investigate the control of common lambsquarters in pea and snap bean following preplant incorporated, preemergence, and postemergence applications of imazethapyr at 36 to 69 g ai/ha. The residual activity of imazethapyr on rotational crops of sweet corn, grain sorghum, and cucumber was evaluated. All rates of imazethapyr provided good (>80% initially) control of common lambsquarters. Although imazethapyr caused some injury to both pea and snap bean, yields were not reduced except for snap bean following postemergence applications. Imazethapyr residues resulting from the applications of 36 to 69 g/ha caused visible injury and fresh weight reductions to all three rotational crops.

Keywords

Imazethapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidcommon lambsquarters, Chenopodium album L. ♯3 CHEALcucumber, Cucumis sativus L. ‘Poinsett’grain sorghum, Sorghum bicolor (L.)Moench. ‘Corral’pea, Pisum sativum L. ‘Progress No. 9’snap bean, Phaseolus vulgaris L. ‘Atlantic’, sweet corn, Zea mays L. saccharata ‘Merit’Residual activitymetolachlorpendimethalinCHEAL
Type
Research
Information
Weed Technology , Volume 4 , Issue 1 , March 1990 , pp. 39 - 43
Copyright
Copyright © 1990 Weed Science Society of America 

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References

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