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Evaluation of Soil-Applied Herbicides in Sequential Programs with CGA-277476 in Soybean (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Eric W. Palmer ,
David R. Shaw  and
J. C. Holloway Jr.
Eric W. Palmer
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
David R. Shaw*
Affiliation:
Department of Plant and Soil Sciences, Mississippi State University, Mississippi State, MS 39762
J. C. Holloway Jr.
Affiliation:
Novartis Crop Protection Corp., Delta Research Station, Greenville, MS 38701
*
Corresponding author's E-mail: dshaw@weedscience.msstate.edu.
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Abstract

Soil-applied herbicides alone or followed by postemergence (POST) applications of CGA-277476 were evaluated for season-long weed control in soybean. Common cocklebur, hemp sesbania, and pitted morningglory control was not consistently improved with a soil-applied herbicide followed by a POST application of 79 g ai/ha CGA-277476. However, in locations with heavy weed pressure, a tank-mix of chlorimuron + metribuzin + trifluralin or imazaquin + pendimethalin followed by CGA-277476 improved common cocklebur, hemp sesbania, and pitted morningglory over CGA-277476 alone. Sequential application of CGA-277476 following SAN 582 improved weed control over SAN 582 alone. When weed pressure was not severe, there were no differences in control from CGA-277476 alone or following soil-applied herbicides. A POST application of CGA-277476 following soil-applied herbicides did not consistently improve soybean yield over CGA-277476 alone. Yield from soybean treated with SAN 582 was improved when CGA-277476 was applied. In contrast, when chlorimuron + metribuzin + trifluralin or imazaquin + pendimethalin were applied at planting, yield was similar with or without POST application of CGA-277476.

Keywords

common cocklebur, Xanthium strumarium L. #XANSTpitted morningglory, Ipomoea lacunosa L. # IPOLAWeed managementchlorimuronimazaquinmetribuzinpendimethalinSAN 582trifluralinIpomoea lacunosaSesbania exaltataXanthium strumariumIPOLASEBEXXANSTPOST, postemergencePPI, preplant incorporatedPRE, preemergenceWAP, weeks after planting
Type
Research
Information
Weed Technology , Volume 13 , Issue 2 , June 1999 , pp. 271 - 275
Copyright
Copyright © 1999 by the Weed Science Society of America 

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Footnotes

1

Approved for publication as Journal Article J-9440 of the Mississippi Agricultural and Forestry Experiment Station.

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