1986•Weed ScienceRequires access
Quackgrass (Agropyron repens) Control in Red Fescue Seed Production
Donald L. Wyse, L. J. Elling, Donald B. White, Robert McGraw
Open publisher page 3 citations
Abstract
Sethoxydim {2-[1-(ethoxyimino)butyl]-5-[2-(ethylthio)propyl]-3-hydroxy-2-cyclohexen-1-one}, RO-13-8895 {acetone-O-[d-2-[p-[α,α,α-trifluoro-p-tolyl-oxy]phenoxy] propionyl] oxime}, and KK-80 {4-[4-[4-(trifluoromethyl)phenoxy] phenoxyl]-2-pentenoic} were evaluated for potential use for controlling quackgrass [Agropyron repens(L.) Beauv., # AGRRE] in perennial ryegrass (Lolium perenneL. ‘NK200’), smooth bromegrass (Bromus inermisLeyss. ‘Sac’), orchardgrass (Dactylis glomerataL. ‘Nordstern’), timothy (Phleum pratenseL. ‘Climax’), Kentucky bluegrass (Poa pratensisL. ‘Park’), Reed canarygrass (Phalaris arundinaceaeL. ‘Rise’), meadow fescue (Festuca elatiorL.), and red fescue (Festuca rubraL.). The three herbicides, when applied postemergence at 1.1 kg ai/ha, caused severe injury to all species except red fescue. ‘Pennlawn’, ‘Ruby’, ‘Dawson’, MN67123, MN673, and MN6354 red fescue entries were tolerant to the three herbicides in both greenhouse and field experiments. Sethoxydim and RO-13-8895 effectively controlled quackgrass in Pennlawn red fescue, but KK-80 was not effective.