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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2004_vol58.pdf#page=110
Last checked: 07/23/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Lycan, D. W.;
Hart, S. |
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| Author Affiliation: | Rutgers University, New Brunswick, New Jersey |
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| Title: | Soil residual activity of sulfosulfuron and bispyribac on cool-season turfgrass |
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| Section: | Turfgrass and plant regulators section
Other records with the "Turfgrass and plant regulators section" Section
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| Meeting Info.: | Marriott Cambridge Center, Cambridge, Massachusetts: January 5-8, 2004 |
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| Source: | Proceedings: NortheasternWeed Science Society. Vol. 58, 2004, p. 110. |
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| Publishing Information: | Ithaca, NY: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bispyribac-sodium; Cool season turfgrasses; Herbicide evaluation; Residual effects; Sulfosulfuron
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| Abstract/Contents: | "Sulfosulfuron and bispyribac-sodium have postemergence activity on annual bluegrass (Poa annua L.) and roughstalk bluegrass (Poa trivialis L.) in turfgrass. However, the level of preemergence activity these herbicides have on cool-season turfgrass is not well understood. Field experiments were conducted in the fall of 2002 and 2003 at Adelphia, New Jersey to investigate the soil residual activity of sulfosulfuron and bispyribac on three cool-season turfgrass species. Soil type was a Holmdel sandy-loam with a pH of 6.5 and 2% organic matter content. Sulfosulfuron (0.03 and 0.07 kg ai/ha) and bispyribac (0.15 and 0.3 kg ai/ha) were applied to an established stand of Kentucky bluegrass (Poa pratensis L.) at 6, 4, 2, and 1 week before seeding (WBS). Sulfosulfuron applications included nonionic surfactant at 0.25% (v/v). All applications were made with a CO2 backpack sprayer delivering 374 L/ha. The existing turf was controlled with a non-selective herbicide spray one week before seeding to facilitate evaluations of desired seedlings. Creeping bentgrass (Agrostis stolonifera L. `L-93'), perennial ryegrass (Lolium perenne L. `Pizzazz'), and Kentucky bluegrass `Kenblue' were verti-seeded into treated plots in early September. Ground coverage was evaluated 3 and 7 weeks after seeding (WAS) and once the following spring. Sulfosulfuron was applied 1 WBS at either rate reduced ground coverage of all species as compared to the nontreated check at 3 WAS in 2002. These plots recovered from initial injury by the following spring. Bispyribac did not reduce ground coverage of any species in 2002. Reduction of ground coverage was more prevalent in 2003. Sulfosulfuron at 0.03 kg/ha and bispyribac at 0.15 kg/ha applied 1 WBS reduced Kentucky bluegrass coverage by 75 and 69%, respectively, at 3 WAS. Sulfosulfuron applied 2 WBS at either rate and 4 WBS at 0.07 kg/ha reduced Kentucky bluegrass cover. All treatments made 1 WBS reduced perennial ryegrass cover by at least 28% as compared to the nontreated check at 3 WAS. Both rates of sulfosulfuron and bispyribac at 0.3 kg/ha reduced creeping bentgrass coverage when applied 1WBS [1 WBS]. Preemergence control of annual bluegrass was evaluated in a seperate study. Sulfosulfuron (0.01 to 0.03 kg/ha), bispyribac (0.07 to 0.15 kg/ha), dithiopyr (0.28 and 0.42 kg ai/ha), and bensulide (5.6 and 11.2 kg ai/ha) were applied to bare ground in early September of 2002 and 2003 at Adelphia, NJ. Sulfosulfuron and bispyribac appilications provided preemergence control of annual bluegrass that was comparable to or superior than both dithiopyr and bensulide in both years. Sulfosulfuron provided greater than 90% control of annual bluegrass, while bispyribac, dithiopyr, and bensulide provided 63 to 85% control at 6 weeks after treatment in 2003. These studies suggest that establishment of Kentucky bluegrass, perennial ryegrass, and creeping bentgrass may be negatively affected by sulfosulfuron applications made 2 to 4 weeks before seeding and bispyribac applications made 1 to 2 weeks before seeding. In addition, both sulfosulfuron and bispyribac appear to have substantial preemergence activity on annual bluegrass when applied to bare ground." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Lycan, D. W., and S. Hart. 2004. Soil residual activity of sulfosulfuron and bispyribac on cool-season turfgrass. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 58:p. 110. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2004_vol58.pdf#page=110
Last checked: 07/23/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 v. 57 |
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