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Flufenacet and Isoxaflutole Combinations for Weed Control and Corn (Zea mays) Tolerance

Published online by Cambridge University Press:  20 January 2017

W. James Grichar ,
Brent A. Besler  and
Drew T. Palrang
W. James Grichar*
Affiliation:
Texas Agricultural Experiment Station, Beeville, TX 78102
Brent A. Besler
Affiliation:
Texas Agricultural Experiment Station, Beeville, TX 78102
Drew T. Palrang
Affiliation:
Bayer CropScience, Austin, TX 78739
*
Corresponding author's E-mail: w-grichar@tamu.edu
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Abstract

Field studies were conducted in 1999 and 2000 at seven locations in south Texas to evaluate flufenacet plus isoxaflutole for weed control and corn tolerance. Palmer amaranth control with flufenacent plus isoxaflutole was variable, with no greater than 60% control at one location and greater than 95% control at another. The poor control at the one location was probably due to lack of rainfall for 3 to 4 wk after corn was planted. Flufenacet plus isoxaflutole at 0.56 or 0.7 kg/ha controlled Texas panicum at least 80%, whereas flufenacet plus isoxaflutole rates lower than 0.56 kg/ha provided variable control (55 to 99%). Flufenacet plus isoxaflutole at 0.35 and 0.49 kg/ha controlled pitted morningglory at least 83%. Corn stunting (3 to 16%) with flufenacet plus isoxaflutole was noted at the one location where the soil sand content was greater than 80% and moisture was received within 48 h of herbicide application. With few exceptions, corn weed control and yield with flufenacet plus isoxaflutole combinations were generally comparable to those observed for the atrazine and acetochlor standard treatments.

Keywords

FlufenacetisoxaflutolePalmer amaranth, Amaranthus palmeri S. Wats. # AMAPApitted morningglory, Ipomoea lacunosa (L.) # IPOLATexas panicum, Panicum texanum Buckl. # PANTEcorn, Zea mays L., ‘AS986’, ‘DK668’, ‘Pioneer 3223’, ‘Pioneer 32K61’Corn toleranceweed management
Type
Research Article
Information
Weed Technology , Volume 19 , Issue 4 , December 2005 , pp. 891 - 896
Copyright
Copyright © Weed Science Society of America 

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