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Imazethapyr for Weed Control in Soybean (Glycine max)

Published online by Cambridge University Press:  12 June 2017

John R. Cantwell
Affiliation:
Dep. Agron., Univ. Ill., 1102 S. Goodwin Ave., Urbana, IL 61801
Rex A. Liebl
Affiliation:
Dep. Agron., Univ. Ill., 1102 S. Goodwin Ave., Urbana, IL 61801
Fred W. Slife
Affiliation:
Dep. Agron., Univ. Ill., 1102 S. Goodwin Ave., Urbana, IL 61801

Abstract

Imazethapyr at 0.05 to 0.14 kg ai/ha applied preplant incorporated, preemergence, and postemergence was evaluated alone and with complementary herbicides in the field for weed control in soybean. Imazethapyr controlled 90% or more smooth pigweed regardless of application method or herbicide rate. Imazethapyr at 0.05 kg/ha controlled jimsonweed 30% better postemergence compared to soil applications. Imazethapyr at 0.10 kg/ha controlled 90% or more velvetleaf regardless of application method. The addition of alachlor to soil-applied imazethapyr enhanced giant foxtail, jimsonweed, and velvetleaf control. Adding acifluorfen or bentazon to postemergence imazethapyr antagonized weed control. Adding sethoxydim to postemergence imazethapyr was not beneficial.

Type
Research
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

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