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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2006.pdf#page=112
Last checked: 07/22/2013
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Notes: Item is within a singel 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): | Borger, J. A.;
Watschke, T. L.;
Naedel, M. B. |
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| Author Affiliation: | Penn State University, University Park, Pennsylvania |
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| Title: | Selective postemergence perennial grass control |
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| Section: | Turfgrass and plant regulators II
Other records with the "Turfgrass and plant regulators II" Section
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| Meeting Info.: | Providence, RI: January 3-6, 2006 |
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| Source: | Proceedings: NortheasternWeed Science Society. Vol. 60, 2006, p. 107. |
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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: Phytotoxicity; Resistance; Agrostis stolonifera; Poa trivialis; Festuca arundinacea; Lolium perenne; Poa pratensis; Herbicide resistance; Herbicide application; Weed control; Selective weed control; Postemergence weed control
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| Abstract/Contents: | "Phytotoxicity and tolerance evaluations were conducted on a stand of mature fairway height 'Penneagle' creeping bentgrass (Agrostis stolonifera), fairway height 'Winter Play' rough bluegrass (Poa trivialis), lawn height 'Plantation' tall fescue (Festuca arundinacea S.), law height 'Jet-Elite' perennial ryegrass (Lolium perenne L.), and lawn height 'Park' Kentucky bluegrass (Poa pratensis) at the Valentine Turfgrass Research Center, Penn State University, University Park, Pa. The objective of the study was to determine the phytotoxicity and tolerance of selected materials on CBG (CBG), rough bluegrass, tall fescue, perennial ryegrass (PR), and Kentucky bluegrass. The study was a randomized complete block design with 3 replications. Treatments were applied on June 23 (JUNE), July 12 (2 WAT/3 WAT), July 21 (4 WAT), August 4 (6 WAT), and September 2, 2005 (9 WAT) using a three foot (CO2) powered boom sprayer calibrated to deliver 40 gpa using two, flat fan, 11004 nozzles at 40 psi. The CBG and rough bluegrass were mowed with a reel mower at one half inch with clippings removed and the tall fescue, PR, and Kentucky bluegrass were mowed at one and one half inches with clippings returned to the site. Turfgrass phytotoxicity was evaluated eight times. CBG treated with mesotrione twice, had unacceptable phytotoxicity until the August 14, 2005 rating date. CBG treated three times with mesotrione, had unacceptable phytotoxicity on all eight rating dates. Rough bluegrass treated with MON 44951 or Velocity at any rate or time or application schedule had unacceptable phytotoxicity. Rough bluegrass treated with mesotrione has unacceptable phytotoxicity on three rating dates (June 28, July 6, and August 14). Tall fescue treated with MON 44951 had unacceptable phytotoxicity on all but the first rating date except for the 0.25, 0.3, and 0.5 oz/A rate applied four times (July 6 rating date). Tall fescue treated with Velocity 80WP had unacceptable phytotoxicity on July 6 and July 21 rating dates. Following applications of Velocity 17.6WG phytotoxicity was unacceptable on the July 21 rating date. Tall fescue treated with mesotrione three times had unacceptable phytotoxicity on the August 1 rating date. PR treated with MON 44951 or Velocity at any rate or application schedule had unacceptable phytotoxicity on the July 21 rating date. Additionally, PR treated with MON 44951 at the 0.25 oz/A rate and applied four times had unacceptable phytotoxicity on the August 1 rating date. Only Kentucky bluegrass treated with any formulation of Velocity had unacceptable phytotoxicity on all rating dates except June 28. The percent green vegetation was rated once during the study on October 6, 2005. CBG treated with mesotrione had significantly less green vegetation than untreated. Only rough bluegrass treated with MON 44951 at 0.25 oz/A applied twice or any rate of mesotrione had green vegetation that was not significantly different than untreated. Only tall fescue treated with any formulation of Velocity or any rate of mesotrione had green vegetation that was not significantly different than untreated. PR treated with MON 44951 at 0.5 oz/A applied 3X or 4X and MON 44951 at 0.3 oz/A applied 4X had significantly less green vegetation than untreated. Only Kentucky bluegrass treated with any formulation of Velocity had significantly less green vegetation than untreated." |
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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):
Borger, J. A., T. L. Watschke, and M. B. Naedel. 2006. Selective postemergence perennial grass control. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 60:p. 107. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2006.pdf#page=112
Last checked: 07/22/2013
Requires: PDF Reader
Notes: Item is within a singel large file |
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MSU catalog number: SB 610 .N62 v. 60 |
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