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| Web URL(s): | http://www.newss.org/proceedings/proceedings-2015.pdf#page=54
Last checked: 10/23/2015
Requires: PDF Reader
Notes: Item is within a single large file
https://issuu.com/leadingedgepubs/docs/va-turfgrass-2015-sept-oct/24
Last checked: 07/31/2019
Requires: JavaScript
Notes: Item is within a single large file; Virgina Turfgrass Journal reprint |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary Only |
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| Author(s): | Venner, K. A.;
Askew, S. D.;
Koo, S. |
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| Author Affiliation: | Venner: Chair-Elect, Turfgrass and Plant Growth Regulators Committee; Askew: Chair, NEWSS 2015 Program Committee and Collegiate Weed Contest Committee and Vice President, NEWSS Executive Committee; Virginia Tech, Blacksburg |
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| Title: | Improving creeping bentgrass recovery following annual bluegrass control with methiozolin |
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| Meeting Info.: | Williamsburg, Virginia: January 5-8, 2015 |
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| Source: | Proceedings of the Sixty-ninth Annual Meeting of the Northeastern Weed Science Society. Vol. 69, 2015, p. 52. |
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| Publishing Information: | College Park, Maryland: The University of Maryland |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Application rates; Biostimulants; Comparisons; Fertilization rates; Fertilizer evaluation; Methiozolin; Plant recovery; Poa annua control; Stenotaphrum secundatum; Water soluble fertilizers
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| Cultivar Names: | PoaCure; Floratine |
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| Abstract/Contents: | "Methiozolin (PoaCure® ), has the ability to completely control annual bluegrass (AB) with safety to creeping bentgrass (CB) when applied at appropriate rates. Sometimes, however, methiozolin removes AB more quickly than desired, resulting in a voided turfgrass canopy. Studies are needed to evaluate methods to increase CB recovery rates when voids are left by dying AB. Studies were conducted to compare increased fertility via soluble fertilizer (SF), SF + trinexapac-ethyl (TE) and Floratine® biostimulants (FB). Two trials were initiated on March 22, 2013 and March 27, 2014. Trial 1 was conducted at the Virginia Tech Golf Course and repeated on two separate, push-up style, practice greens maintained at 0.39 cm. Trial 1 was a randomized complete block design with 3 replications for each study site. Each study site was treated with methiozolin at 3000 g ai ha-1 followed by 500 g ai ha-1 twice at a 2 week interval in order to facilitate rapid removal of AB. Trial 2 was conducted at the Turfgrass Research Center (TRC) on a USGA specification 'L-93' green that is maintained at 0.32 cm. This trial was aerated to remove 30% of the turfgrass canopy on May 5, 2013 and 2014. Trial 2 was a split-plot design with 4 cultural treatments as main plots and two rates of methiozolin as sub-plots. Sub-plots contained either no methiozolin or methiozolin applied at 500 g ai ha-1 6 times at a 2 week interval. All cultural treatments were the same between trials and were as follows: no cultural treatment, increased fertility using a commercially available SF product, SF plus TE at 0.048 g ai ha-1 and increased fertility via FB. All fertility treatments were applied every two weeks, when turfgrass was fully green, beginning on April 14, 2013 and May 2, 2014 in addition to the normal fertility regime administered by a golf course. Results: Trial 1: At trial initiation, turfgrass was dormant and CB cover ranged from 15 to 21%. One week after initiation of cultural treatments (WAIF) in 2013, FB plots were significantly greener than SF alone and the untreated, but not SF plus TE. In 2014 at 1 WAIF, no differences between treatments was [were] observed. By 6 weeks after initial treatment (WAIT) in 2013, all increased fertility treatments were significantly greener than the untreated, but not different from one another. At 6 WAIT in 2014, SF and FB were significantly greener than the untreated, which was greener than the SF plus TE. At the conclusion of the trial (12 WAIT), cover in treated plots ranged from 95 to 96%, and 90% in the untreated in 2013 and 90 to 93% in 2014. Trial 2: At trial initiation, turfgrass was dormant, and CB cover ranged from 11 to 21% across the trial area. One WAIF in 2013, percent green tissue on treated plots ranged from 72 to 78%, whereas the untreated was 54%. In 2014, cover at 1 week WAIF ranged from 62 to 70% across all treatments. At 2 weeks after aeration (WAA) in 2013 and 2014, FB recovered more than all other treatments. SF alone increased green cover more than the untreated but not equal to SF plus TE. At the conclusion of the study in both 2013 and 2014, there were no significant differences between cultural treatments. In 2014, however, at 6 WAA until the conclusion of the study, methiozolin treated plots had significantly less green cover than plots that did not receive methiozolin. These data suggest that methiozolin applications could influence turfgrass recovery following an intensive aeration event." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only!
Reprint appears in Virginia Turfgrass Journal, September/October 2015, p. 24-25, with variant pictures and variant graph |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Venner, K. A., S. D. Askew, and S. Koo. 2015. Improving creeping bentgrass recovery following annual bluegrass control with methiozolin. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 69:p. 52. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings-2015.pdf#page=54
Last checked: 10/23/2015
Requires: PDF Reader
Notes: Item is within a single large file
https://issuu.com/leadingedgepubs/docs/va-turfgrass-2015-sept-oct/24
Last checked: 07/31/2019
Requires: JavaScript
Notes: Item is within a single large file; Virgina Turfgrass Journal reprint |
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MSU catalog number: SB 610 .N62 |
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