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Control of Field Bindweed (Convolvulus arvensis) with Postemergence Herbicides

Published online by Cambridge University Press:  12 June 2017

Allen F. Wiese  and
Dwane E. Lavake
Allen F. Wiese
Affiliation:
Texas Agric. Exp. Stn., USDA Conserv. and Prod. Res. Lab., Drawer 10, Bushland, TX 79012
Dwane E. Lavake
Affiliation:
Texas Agric. Exp. Stn., USDA Conserv. and Prod. Res. Lab., Drawer 10, Bushland, TX 79012
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Abstract

Over 20 experiments comparing glyphosate [N-(phosphonomethyl)glycine], dicamba (3,6-dichloro-2-methoxybenzoic acid), fosamine [ethyl hydrogen (aminocarbonyl)phosphonate], and 2,4-D [(2,4-dichlorophenoxy) acetic acid] for control of field bindweed (Convolvulus arvensis L. # CONAR) were conducted from 1976 to 1982 at various times of the year and different stages of weed growth. In three of the studies, 1.7, 3.4, and 5.0 kg ae/ha of glyphosate gave 54, 72, and 80% control, respectively, 1 yr after application. Control with glyphosate at 3.4, 2,4-D at 1.1, dicamba at 1.1, and fosamine at 13.7 kg ae/ha in the 20 studies was 71, 55, 57, and 73%, respectively, 1 yr after application. Glyphosate, 2,4-D, and fosamine gave good control at any time of the year if weed growth was lush. Dicamba gave good control anytime if growth was good and in the fall regardless of growing conditions. Control with mixtures of dicamba and picloram, picloram and 2,4-D, or glyphosate and picloram was higher than with the other herbicides. Dicamba at 1.1 kg/ha, applied after August caused some injury to wheat planted the same fall. Herbicide combinations with picloram at 0.28 kg/ha applied after June injured wheat planted in the fall.

Keywords

Glyphosatedicambafosamine2,4-DCONAR

Information

Type
Weed Control and Herbicide Technology
Information
Weed Science , Volume 34 , Issue 1 , January 1986 , pp. 77 - 80
Copyright
Copyright © 1986 by the Weed Science Society of America 

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References

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