Control of mannagrass (Glyceria declinata) and southern watergrass (Luziola fluitans) in water-seeded rice (Oryza sativa)

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4 Scopus citations


Preplant control of mannagrass was greater than 90% with clethodim, glyphosate, sethoxydim, and sulfosate. Glyphosate at 0.5 to 1.0 kg ai/ha controlled mannagrass greater than 97%, and was not increased with any adjuvant. Fenoxaprop applied POST controlled mannagrass 97% but injured rice 33%. Except for fenoxaprop-ethyl, all POST treatments increased rice yields at least 1560 kg/ha more than the non-treated check. Southern watergrass was controlled 79 and 89% with 1.0 kg ai/ha glyphosate and 4.5 kg ai/ha sulfosate, respectively, while control was less than 55% with other herbicides. Nomenclature: Clethodim, (E,E)-(±)-2-[1-[[(3-chloro-2-propenyl)oxy]iminolpropyl]-5-[2-(ethylthio)- propyl]-3-hydroxy-2-cyclohexen-1-one; fenoxaprop-ethyl, (±)-ethyl 2-[4-[(6-chloro-2-benzoxazolyl)-oxy]phenoxy]propanoate; glyphosate, N-(phosphonomethyl)glycine; sethoxydim, 2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one; sulfosate, (N-phosphonomethyl)glycine trimethyl sulfonium salt; mannagrass, Glyceria declinata Brebiss.; Southern watergrass, Luziola fluitans (Michx.) Terrell & H. Robinson; rice, Oryza sativa L.

Original languageEnglish (US)
Pages (from-to)68-71
Number of pages4
JournalWeed Technology
Issue number1
StatePublished - 1996
Externally publishedYes

All Science Journal Classification (ASJC) codes

  • Agronomy and Crop Science
  • Plant Science


  • Aquatic
  • Clethodim
  • Ethofumesate
  • Fenoxaprop
  • Fluazifop
  • Glufosinate
  • Glyphosate
  • Molinate
  • Paraquat
  • Propanil
  • Quinclorac
  • Quizalifop
  • Sethoxydim
  • Sulfosate


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