Full TGIF Record # 270908
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Web URL(s):http://www.newss.org/proceedings/Proceedings_NEPPSC16_Vol1.pdf#page=60
    Last checked: 03/15/2018
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Publication Type:
i
Proceedings
Content Type:Abstract or Summary Only
Author(s):Brewer, J. R.; Askew, S. D.; Rana, S. S.
Author Affiliation:Virginia Tech, Blacksburg, VA
Title:Thin paspalum control in cool-season turf
Section:NEWSS student content - oral presentations (1)
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Meeting Info.:Philadelphia, Pennsylvania: January 3-7, 2016
Source:Proceedings of the First Annual Meeting of the Northeastern Plant, Pest, and Soils Conference. 2016, p. 33-34.
Publishing Information:s.l.: Northeastern Weed Science Society; the Eastern Branch of the Entomological Society of America; the Northeastern Division of the American Phytopathological Society; the Northeast Branch of the American Society of Agronomy; the Crop Science Society of America; the Soil Science Society of America; and the American Society of Horticultural Science-Northeast Region
# of Pages:2
Keywords:TIC Keywords: Combination treatments; Control methods; Cool season turfgrasses; Festuca arundinacea; Fluazifop; Golf course maintenance; Herbicide efficacy; Herbicide evaluation; MSMA; Mesotrione; Paspalum dilatatum; Paspalum setaceum; Topramezone; USEPA; Weed control
Abstract/Contents:"Paspalum grass species such as thin paspalum (Paspalum setaceum) and dallisgrass (Paspalum dilatatum) plague golf courses all over the southeastern and northeastern regions of the United States. These grass species are clump-forming perennial grasses that can be tough to control in a turfgrass setting due to a system of 34 underground rhizomes. Dallisgrass was controlled for years by MSMA primarily in warm-season turfgrass, but control often required several high-rate applications at 7 to 10 day intervals. MSMA use has recently been severely limited on golf courses due to Environmental Protection Agency (EPA) regulations. Some herbicides have shown promise for Paspalum spp. control in cool-season turfgrass including fluazifop, mesotrione, and topramezone. Our studies were initiated on June 18, 2015 and July 28, 2015 on a tall fescue rough at the Pete Dye River Course at Virginia Tech near Radford, VA. Both studies were formatted in a randomized complete block. These studies were established to search for effective control options for thin paspalum in cool-season turfgrass. Treatments for these studies included: topramezone at 24.6 g ai ha-1, mesotrione at 175 g ai ha-1, fluazifop at 105 g ai ha-1, topramezone + mesotrione, and topramezone + fluazifop. All treatments were applied twice at 3 week intervals, and included methylated seed oil at 0.5 percent V/V. These treatments were applied with a hooded sprayer at 280 L ha-1 and 4.8 km ha-1, and the sprayer had a 71 cm spray width. Initial thin paspalum cover was 63 to 77 percent at the first site and 22 to 47 percent at the second site. At 3 WAIT, all topramezone and fluazifop treatments controlled thin paspalum greater than 88 percent at the first site and between 63 and 85 percent at the second site. Treatments were initiated later in the season at the second site and thin paspalum was more mature at initial treatment, and possibly more resistant to herbicides. Mesotrione in both studies controlled thin paspalum less than 50 percent. Tall fescue was only injured by fluazifop (13 percent) during the second study at the 3 week rating. During the 6 week rating of the first study and the 7 week rating of the second study, all topramezone and fluazifop treatments controlled thin paspalum at least 99 percent, while mesotrione controlled thin paspalum 72 and 87 percent. Fluazifop was the only treatment that caused unacceptable injury during the 6 and 7 week rating, which ranged from 43 to 57 percent."
Language:English
References:0
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Brewer, J. R., S. D. Askew, and S. S. Rana. 2016. Thin paspalum control in cool-season turf. p. 33-34. In Proceedings of the First Annual Meeting of the Northeastern Plant, Pest, and Soils Conference. Philadelphia, Pennsylvania: January 3-7, 2016. s.l.: Northeastern Weed Science Society; the Eastern Branch of the Entomological Society of America; the Northeastern Division of the American Phytopathological Society; the Northeast Branch of the American Society of Agronomy; the Crop Science Society of America; the Soil Science Society of America; and the American Society of Horticultural Science-Northeast Region.
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http://www.newss.org/proceedings/Proceedings_NEPPSC16_Vol1.pdf#page=60
    Last checked: 03/15/2018
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    Notes: Item is within a single large file
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