Full TGIF Record # 231142
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Web URL(s):http://www.wsweedscience.org//wp-content/uploads/proceedings-archive/2013.pdf#page=75
    Last checked: 12/20/2013
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Author(s):Umeda, Kai; DeFrank, Joseph; Baldos, Orville; Lukas, Scott; Okazaki, Craig
Author Affiliation:Umeda: University of Arizona Cooperative Extension, Phoenix, AZ; DeFrank, Baldos, Lukas and Okazaki: University of Hawaii, Honolulu, HI
Title:New approaches to manage difficult to control turfgrass weeds in Hawaii
Section:Weeds of horticultural crops
Other records with the "Weeds of horticultural crops" Section
Meeting Info.:San Diego, California: March 11-14, 2013
Source:Western Society of Weed Science Annual Meeting 2013. Vol. 66, 2013, p. 75.
# of Pages:1
Publishing Information:Las Cruces, New Mexico: Western Society of Weed Science
Keywords:TIC Keywords: Axonopus compressus; Eleusine indica; Herbicide combinations; Herbicide evaluation; Kyllinga brevifolia; Paspalum conjugatum; Paspalum dilatatum; Postemergence herbicides; Research; Weed control
Abstract/Contents:"Results of five separate field experiments on golf course and municipal athletic field turfgrasses demonstrated efficacy of postemergence herbicides against goosegrass (Eleusine indica), kyllinga (Kyllinga brevifolia), dallisgrass (Paspalum dilatatum), hilograss (Paspalum conjugatum), and carpetgrass (Axonopus compressus). Experiment 1 showed that the pre-mix product thiencarbazone + foramsulfuron + halosulfuron (Tribute Total) with methylated seed oil applied sequentially in August followed again in September gave acceptable control of goosegrass for about 1 month. Slight bermudagrass turf injury was observed. Experiment 2 on an adjacent soccer field included Tribute Total at 0.121 lb a.i./A applied twice gave very good control of kyllinga. Similarly, 2 applications of sulfentrazone + metsulfuron-methyl (Blindside) at 0.413 lb a.i./A controlled kyllinga. On a baseball field infested with dallisgrass, Experiment 3 compared Tribute Total tank-mixes, and the addition of metribuzin with methylated seed oil and ammonium sulfate visually enhanced efficacy over the addition of non-ionic surfactant for dallisgrass control. Imazamox at 0.045 and 0.06 lb a.i./A reduced dallisgrass following sequential applications in September and October in another experiment. The final experiment compared the efficacy and safety of postemergence herbicides with and without broadcast spreading of salt, NaCl at 1000 lb/A on seashore paspalum (P. vaginatum) and bermudagrass on a golf course green and surrounding collar area. Tribute Total, foramsulfuron, trifloxysulfuron, and thiencarbazone + iodosulfuron + dicamba (Celsius) applied alone or in combination with salt reduced hilograss population. Tribute Total and Blindside with salt gave acceptable reduction of carpetgrass. Tribute Total, Blindside, Celsius, and trifloxysulfuron alone or with salt controlled green kyllinga. The application of salt alone did not cause injury to the seashore paspalum compared to reducing bermudagrass nearly 50% for 2 to 3 months after treating. Tribute Total, foramsulfuron, Celsius, and trifloxysulfuron caused marginally acceptable chlorosis of the seashore paspalum."
Note:This item is an abstract only!
See Also:Other items relating to: Seashore Paspalum - Since 2000
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Umeda, K., J. DeFrank, O. Baldos, and C. Okazaki. 2013. New approaches to manage difficult to control turfgrass weeds in Hawaii. Proc. West. Soc. Weed Sci. 66:p. 75.
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    Last checked: 12/20/2013
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    Notes: Item is within a single large file
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