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Clomazone as a Component in Cotton (Gossypium hirsutum) Herbicide Programs

Published online by Cambridge University Press:  12 June 2017

David L. Jordan
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703
Alan C. York
Affiliation:
Dep. Crop Sci., N. C. State Univ., Raleigh, NC 27695-7620
Marilyn R. McClelland
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703
Robert E. Frans
Affiliation:
Dep. Agron., Univ. Ark., Fayetteville, AR 72703

Abstract

Efficacy of herbicide programs containing clomazone PPI plus fluometuron PRE or clomazone plus pendimethalin PPI plus fluometuron PRE was compared with that of standard programs of pendimethalin PPI plus fluometuron PRE and norflurazon PPI plus norflurazon and fluometuron PRE. Cotton injury was less than 5% with all treatments when disulfoton or phorate was applied in the seed furrow. Control of fall panicum, goosegrass, large crabgrass, eclipta, entireleaf morningglory, ivyleaf morningglory, pitted morningglory, tall morningglory, prickly sida, redroot pigweed, smooth pigweed, hemp sesbania, spotted spurge, sicklepod, and velvetleaf and cotton yields with 0.8 kg ai ha−1 of clomazone plus fluometuron or 0.6 kg ha−1 of clomazone plus pendimethalin plus fluometuron equalled or exceeded that from the standard herbicide programs. POST-directed application of methazole at 0.8 kg ai ha−1 plus MSMA at 2.2 kg ae ha−1 increased sicklepod and morningglory control and cotton yield. Clomazone applied PRE at 0.6 kg ha−1 with fluometuron controlled broadleaf signalgrass, goosegrass, large crabgrass, prickly sida, and smooth pigweed equally with that of standard treatments of trifluralin or trifluralin plus norflurazon PPI and fluometuron PRE, whereas pitted morningglory control and cotton yield with clomazone plus fluometuron exceeded that with the standards.

Information

Type
Research
Copyright
Copyright © 1993 by the Weed Science Society of America 

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