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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2007.pdf#page=98
Last checked: 06/28/2013
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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): | Naedel, M. B.;
Borger, J. A. |
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| Author Affiliation: | The Pennsylvania State Univ., University Park |
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| Title: | Seedhead suppression of annual bluegrass on a putting green in 2006 |
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| Section: | Turfgrass and plant growth regulators
Other records with the "Turfgrass and plant growth regulators" Section
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| Meeting Info.: | Baltimore, Maryland: January 2-5, 2007 |
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| Source: | Proceedings of the Sixty-First Annual Meeting of the Northeastern Weed Science Society. Vol. 61, 2007, p. 80. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Adjuvants; Agrostis stolonifera; Golf greens; Growth regulator evaluation; Poa annua control; Seedhead inhibition
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| Cultivar Names: | Penncross |
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| Abstract/Contents: | "This study was conducted on a mixed stand of 'Pencross' creeping bentgrass (Agrostis stolonifera) and annual bluegrass (Poa annua) at the Penn State Blue Golf Course in State College, PA. The objective of the study was to evaluate selected growth regulators, with and without adjuvants, for the seedhead suppression of annual bluegrass. This study was a randomized complete block design with three replications, and a plot size of 21 ft2. Treatments were applied on April 6 (PRIOR), April 13 (BOOT), and May 6 (3 WAT), 2006, respectively, using a three-foot CO2 powered boom sprayer calibrated to deliver 40 gpa using one 11004E even tip/flat fan nozzle at 40 psi. Boot stage of the annual bluegrass was observed April 16, 2006. Non treated test areas within the test site revealed approximately 100% coverage of annual bluegrass seedheads. The site was maintained using cultural practices for irrigation, mowing, and fertilization that would be typical for a putting green. The test area was mowed twice with a Toro Triplex, bench set to 0.115", before the April 6, 2006 application of selected materials. During the study the site was fertilized with a Nature Safe 8-3-5 fertilizer at a rate of 1 lb N/1000 ft2 on May 1, 2006. Turfgrass phytotoxicity was rated five times during the study. The turfgrass phytotoxicity was variable and in some cases lasted for several weeks. On the first rating date, April 24, 2005, turfgrass treated with Embark at 40 oz/A, Embark at 40 oz/A plus MacroSorb Foliar at any rate, Embark at 20 oz/A plus Primo and Proxy applies twice, Embark at 40 oz/A plus ECO-N, Proxy plus Primo plus Trimmit with or without ECO-N (BOOT), any combination of Trimmit and Embark, and Primo (PRIOR) plus Embark at 40 oz/A (BOOT) plus Ferromec (BOOT) was rated less than acceptable for phytotoxicity 7.0. Annual bluegrass seedhead suppression was rated three times during the study. On the last rating date, May 26, 2006, turfgrass treated with Embark at 40 oz/A with and without Ferromec, Embark at 40 oz/A plus MacroSorb Foliar at 8 oz/1000 ft2, Embark at 40 oz/A plus MacroSorb Foliar at 4 oz/1000 ft2, plus Ferromec, Proxy plus Primo plus ECO-N (BOOT/3 WAT), Embark at 20 oz/A (BOOT) plus Primo plus Proxy (BOOT/3 WAT), Embark at 40 oz/A plus ECO-N, Proxy plus Primo plus Trimmit plus ECO-N, Primo plus Trimmit plus Embark at 40 oz/A with and without ECO-N, Trimmit plus Embark at 40 oz/A with and without ECO-N, Proxy (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), Primo (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), ECO-N (PRIOR) plus Embark at 40 oz/A plus Ferromec (BOOT), and Embark at 40 oz/A plus Signature plus Ferromec had significantly fewer annual bluegrass seedheads than untreated turfgrass and had at least 75% reduction of the seedheads." |
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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):
Naedel, M. B., and J. A. Borger. 2007. Seedhead suppression of annual bluegrass on a putting green in 2006. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 61:p. 80. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2007.pdf#page=98
Last checked: 06/28/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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