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| Web URL(s): | http://a-c-s.confex.com/crops/2009am/webprogram/Paper53104.html
Last checked: 01/19/2010 |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Bigelow, Cale;
Bunnell, B. Todd |
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| Author Affiliation: | Bigelow: Purdue Univ., West Lafayette, IN; Bunnell: SEPRO Corporation, Carmel, IN |
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| Title: | Seedling annual bluegrass suppression with autumn applied plant growth regulators |
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| Section: | Turfgrass pest control
Other records with the "Turfgrass pest control" Section
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| Meeting Info.: | Pittsburgh, PA: November 1-5, 2009 |
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| Source: | 2009 International Annual Meetings: [Abstracts][ASA-CSSA-SSSA]. 2009, p. 53104. |
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| Publishing Information: | [Madison, WI]: American Society of Agronomy, Crop Science Society of America, Soil Science Society of America |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Flurprimidol; Flurprimidol + Trinexapac-ethyl; Glyphosate; Growth regulator evaluation; Paclobutrazol; Percent weed cover; Poa annua control; Prodiamine; Trinexapac-ethyl
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| Abstract/Contents: | "Golf course managers are continually seeking new methods and products to suppress Poa annua L. (ABG) in golf turf. A field study was conducted in two consecutive years to evaluate the effect of the plant growth regulators (PGRs): flurprimidol (FL), paclobutrazol (PB), trinexepac-ethyl (TE) and a FL+TE tank-mix for their ability to suppress ABG seedling encroachment. Application rates for FL and PB were 0.28 or 0.56 kg a.i. ha-1, while TE and FL+TE rates were 0.14+0.06 kg a.i. ha-1 and respectively. Initially, all PGRs were applied three times on 28 d intervals starting on 31 August. In year two, two additional FL treatments were added and applied on 14 d intervals. All PGRs were compared to untreated turf and prodiamine, 0.38 kg a.i. ha-1, controls. Prior to initiating treatments, glyphosate was applied on 21 Aug. to the study area which contained a mature, mixed stand of ABG and creeping bentgrass with a developed ABG seedbank. Throughout the study the experimental area was kept well irrigated to promote seedling development. By 12 Dec. of each year, ABG coverage ranged from 22-91 and 4-80% for year one and two, respectively. The most effective treatments for ABG suppression were prodiamine, both PB treatments and FL 0.56 kg a.i. h-1 14 d treatment. The least effective treatments were TE alone, FL 0.28 kg a.i. ha-1 28 d, and the TE+FL tank-mix." |
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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):
Bigelow, C., and B. T. Bunnell. 2009. Seedling annual bluegrass suppression with autumn applied plant growth regulators. Int. Ann. Meet. p. 53104. |
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Last checked: 01/19/2010 |
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