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| Web URL(s): | https://turf.rutgers.edu/research/abstracts/symposium2004.pdf#page=51
Last checked: 02/06/2017
Requires: PDF Reader
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, Darren W.;
Hart, Stephen E. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
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| Title: | Potential use of bispyribac for annual bluegrass control in cool-season turfgrass |
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| Section: | Poster
Other records with the "Poster" Section
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| Meeting Info.: | Cook College, Rutgers, NJ: January 15-16, 2004 |
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| Source: | Proceedings of the Thirteenth Annual Rutgers TurfgrassSymposium. 2004, p. 50. |
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| Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Bispyribac-sodium; Cool season turfgrasses; Festuca arundinacea; Festuca rubra subsp. commutata; Herbicide evaluation; Herbicide injury; Herbicide resistance; Lolium perenne; Poa annua control; Poa pratensis; Visual evaluation
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| Cultivar Names: | Jet; Gnome; Shadow II |
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| Abstract/Contents: | "Previous studies have shown that bispyribac-sodium has activity on annual bluegrass (Poa annua L.) in creeping bentgrass (Agrostis stolonifera L.). However, the relative tolerance of other cool-season turfgrass is not well understood. Field experiments were conducted in the summer of 2002 and 2003 at Adelphia, New Jersey to evaluate the tolerance of four cool-season turfgrass species to varying rates of bispyribac. Bispyribac was applied at 37, 74, 111, 148, and 296 g ai/ha to mature stands of Kentucky bluegrass (Poa pratensis L. `Gnome'), perennial ryegrass (Lolium perenne L. `Jet'), tall fescue (Festuca arundinacea Schreb. `Houndog 5'), and Chewings fine fescue (Festuca rubra L. ssp. communtata Gaudin `Shadow II'). All applications were made to 0.9 x 3.0 m plots with a CO2 backpack sprayer delivering 374 L/ha. Visual injury was evaluated and clippings were collected from the interior of each plot at 35 and 70 days after treatment (DAT) to determine the response of each species. Clippings were dried and weighed and expressed as percent of untreated check. Visual injury on all species at 35 DAT increased with increasing byspyribac rate. Kentucky bluegrass injury reached 27% when bispyribac was applied at 296 g/ha. Injury on other species did not reach 20%. Initial injury was primarily in the form of discoloration on perennial ryegrass, tall fescue, and fine fescue. Kentucky bluegrass exhibited more severe stunting and thinning symptoms. Bispyribac at 37 to 296 g/ha reduced Kentucky bluegrass clipping weights by 5 to 35%, respectively, as compared to the untreated check at 35 DAT in 2002. Initial perennial ryegrass, tall fescue, and fine fescue injury dissipated to 5% or less by 70 DAT. However, recovery of Kentucky bluegrass was less complete. These studies suggest that bispyribac can severely injure Kentucky bluegrass. Kentucky bluegrass may not adequately tolerate bisyribac at rates necessary for annual bluegrass control. Perennial ryegrass, tall fescue, and fine fescue may show initial symptoms of injury, but levels are less severe and persistent than those exhibited by Kentucky bluegrass." |
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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. E. Hart. 2004. Potential use of bispyribac for annual bluegrass control in cool-season turfgrass. Proc. Annu. Rutgers Turfgrass Symp. p. 50. |
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| Web URL(s):
https://turf.rutgers.edu/research/abstracts/symposium2004.pdf#page=51
Last checked: 02/06/2017
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 433 .R88 |
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