Red Rice (Oryza sativa) Control with Herbicide Treatments in Soybeans (Glycine max)

• Published in: Weed science 1987-01, Vol.35 (1), p.127-129
• Main Authors: Khodayari, Khosro, Smith, Roy J., Black, Howard L.
• Format: Article
• Language: English
• Subjects: Biological and medical sciences; Chemical control; DESHERBAGE; ESCARDA; Fundamental and applied biological sciences. Psychology; GLYCINE MAX; Grains; HERBICIDAS; HERBICIDE; HERBICIDES; Infestation; MALEZAS; MAUVAISE HERBE; ORYZA SATIVA; Parasitic plants. Weeds; Phytopathology. Animal pests. Plant and forest protection; Plant growth; Plants; Rice; Seeds; Soil water; Soybeans; Test ranges; WEED CONTROL; Weed Control and Herbicide Technology; WEEDS
• ISSN: 0043-1745; 1550-2759
• DOI: 10.1017/S0043174500026916

Preplant incorporation of alachlor [2-chloro-N-(2,6-diethylphenyl)-N-(methoxymethyl)acetamide] at 3.6 kg ai/ha, metolachlor [2-chloro-N-(2-ethyl-6-methylphenyl)-N-(2-methoxy-1-methylethyl)acetamide] at 2.2 kg ai/ha, and tank mixtures of imazaquin {2-[4,5-dihydro-4-methyl-4-(1-methylethyl)-5-oxo-1H-imidazol-2-yl]-3-quinolinecarboxylic acid} with either alachlor at 0.14 + 2.2 kg ai/ha or metolachlor at 0.14 + 1.1 kg ai/ha controlled >90% red rice (Oryza sativa L. # ORYSA) in soybeans [Glycine max (L.) Merr.]. Also, FMC-57020 [2-(2-chlorophenyl)methyl-4,4-dimethyl-3-isoxazolidinone] at 1.7 kg ai/ha applied preplant incorporated controlled > 80% of the red rice. DPX-Y6202 {2-[4-[(6-chloro-2-quinoxalinyl)oxy]-phenoxy]-propionic acid, ethyl ester} was the best and most consistent postemergence herbicide treatment for red rice control when applied once at 0.28 kg ai/ha or sequentially at 0.14 kg ai/ha each time. Haloxyfop {2-[4-[[3-chloro-5-(trifluoromethyl)-2-pyridinyl]oxy] phenoxy] propanoic acid} applied at 0.16 kg ai/ha followed by another application at 0.14 kg ai/ha gave excellent red rice control in 2 of 3 years. Soybeans were uninjured by the herbicide treatments and yield was higher from treated than untreated soybeans.