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Red Rice (Oryza sativa) Control in Soybeans (Glycine max)

Published online by Cambridge University Press:  12 June 2017

Paolo Nastasi  and
Roy J. Smith Jr.
Paolo Nastasi
Affiliation:
Univ. Arkansas, Rice Res. Ext. Cent., Stuttgart, AR 72160
Roy J. Smith Jr.
Affiliation:
Agric. Res. Serv., U.S. Dep. Agric., Stuttgart, AR 72160
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Abstract

In 1986 and 1987, imazethapyr at 0.11 or 0.14 kg ai/ha and metolachlor plus imazaquin at 1.4 plus 0.16 kg/ha, applied preplant incorporated, controlled greater than 85% of red rice in soybeans. Red rice was controlled similarly by standard herbicide treatments of alachlor at 2.8 kg ai/ha, metolachlor at 2.2 kg ai/ha, and alachlor plus imazaquin at 2.5 plus 0.14 kg ai/ha. Eighty-four percent or more of red rice was controlled with single postemergence herbicide treatments of DPX-Y6202-31 at 0.14 kg ai/ha or imazethapyr at 0.11 kg ai/ha or by sequential postemergence treatment of DPX-Y6202-31 (0.07 plus 0.07 kg ai/ha) or clethodim (0.1 plus 0.1 kg ai/ha). Soybean injury was insignificant, and yields from treated plots were superior or equal to those from untreated plots.

Keywords

Alachlor, 2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamideclethodim, (E,E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy] imino]propyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-oneDPX-Y6202-31, D + isomer of (±)-2-[4-[(6-chloro-2-quinoxalinyl)oxy] phenoxy] propanoic acidimazaquin, 2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acidimazethapyr, (±)-2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-5-ethyl-3-pyridinecarboxylic acidmetolachlor, 2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamidesoybean, Glycine max (L.)Merr.red rice, Oryza sativa L. #3 ORYSAAlachlorclethodimDPX-Y6202-31imazaquinimazethapyrmetolachlorORYSA
Type
Research
Information
Weed Technology , Volume 3 , Issue 2 , June 1989 , pp. 389 - 392
Copyright
Copyright © 1989 by the Weed Science Society of America 

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References

Literature Cited

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