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| Web URL(s): | http://www.newss.org/proceedings/proceedings_2008.pdf#page=69
Last checked: 07/16/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | McDonald, S. J. |
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| Author Affiliation: | Turfgrass Disease Solutions, LLC, Pottstown, PA |
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| Title: | Annual bluegrass control and creeping bentgrass quality and color in fairway height turf as influenced by plant growth regulator programs with bispyribac-sodium |
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| Section: | Turfgrass and plant growth regulators I
Other records with the "Turfgrass and plant growth regulators I" Section
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| Meeting Info.: | Philadelphia, Pennsylvania: January 7-10, 2008 |
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| Source: | Proceedings of the Sixty-Second Annual Meeting of the Northeastern Weed Science Society. Vol. 62, 2008, p. 51. |
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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: Agrostis stolonifera; Bispyribac-sodium; Color; Plant growth regulators; Poa annua control; Turfgrass quality
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| Abstract/Contents: | "Creeping bentgrass (Agrostis stolonifera Huds.) is one of the most commonly grown turf species for fairway turf. In creeping bentgrass fair ways, annual bluegrass (Poa annua L.) (POAAN) is considered a grassy weed. Golf course superintendents employ many different plant growth regulator programs to fairway height turf. In cool- season turfgrass fairways, three different plant growth regulators are standard. These include: paclobutrazol (PB), flurprimodol (FP), and trinexapac-ethyl (TE). Furthermore, bispyribac-sodium (BPS) is labeled for the control of POAAN in fairway height creeping bentgrass. Research has shown that Velocity does have a potential to significantly reduce the population of POAAN in fairway height turf. One issue with the use of this herbicide is that if a stand is comprised of greater than 10% POAAN and the herbicide is applied, the area previously inhibited with POAAN becomes bareground. The purpose of this trial was to evaluate aggressive season long plant growth regulator programs with and without two mid-season applications of BPS for their effects on POAAN populations, turfgrass color, and percent bareground. The trial was conducted on turfgrass maintained as an actual golf course fairway at Brookside Country Club, located in Pottstown, PA. The experimental design was a randomized complete block with four replications. Plots were 2.5 x 6 ft. The site originally consisted of 75-85% creeping bentgrass, 15-20% POAAN, and minor (<8%) amounts of perennial ryegrass. All plant growth regulator programs were initiated on 22 April and continued monthly until 25 September. The BPS applications (30 g a.i./A or) took place on 4 and 20 June. There were a total of nine treatments including the untreated control. Treatments in this trial included; TE program alone (11.0 fluid ounces product per acre (fl oz/A) and with two applications of BPS, PB program alone (16 fl oz/A) and with two applications of BPS and FP program alone (8 oz/A) and with two applications of BPS, BPS applied alone, twice and SP5075-alone ( 14.7 fl oz/A). The SP5075 MEC is a prepackage mix of TE (6.0 fl oz/A equivalent and FP (4.0 oz/A equivalent). Prior to the June, BPS applications the highest level of color was observed in plots treated with SP5075, when compared to remaining treatments and the untreated control. Beginning 10 days and continuing for 30 days following the last BPS application, the highest level of color and quality was observed in the PB and FP program + BPS treated plots. Generally, PB + BPS and FP + BPS, increased POAAN control, turfgrass color and decreased percent bareground when compared to plots treated with BPS-alone, and each plant growth regulator-alone. Data from this trial indicate that is safe for superintendents to continue applications of plant growth regulators during a POAAN control program utilizing BPS." |
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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):
McDonald, S. J. 2008. Annual bluegrass control and creeping bentgrass quality and color in fairway height turf as influenced by plant growth regulator programs with bispyribac-sodium. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 62:p. 51. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_2008.pdf#page=69
Last checked: 07/16/2013
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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