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| Web URL(s): | http://newss.org/proceedings/proceedings_2009.pdf#page=95
Last checked: 07/17/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Brosnan, J. T.;
Breeden, G. K.;
Lewis, D. L. |
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| Author Affiliation: | University of Tennessee, Knoxville |
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| Title: | A new herbicide for winter annual weed control in dormant bermudagrass turf |
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| Section: | Turfgrass and plant grown regulators
Other records with the "Turfgrass and plant grown regulators" Section
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| Meeting Info.: | Baltimore, Maryland: January 6-8, 2009 |
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| Source: | Proceedings of the Sixty-Third Annual Meeting of the Northeastern Weed Science Society. Vol. 63, 2009, 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: Cerastium holosteoides; Cynodon dactylon; Glyphosate; Lamium amplexicaule; Poa annua; Postemergence weed control; Sulfentrazone; Winter annuals
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| Cultivar Names: | Riviera |
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| Abstract/Contents: | "Annual bluegrass (Poa annua L.) and winter annual broadleaf weeds such as henbit (Lamium amplexicaule L.) often infest dormant bermudagrass [Cynodon dactylon (L.) Pers.] turf in the transition zone. The objective of this project was to evaluate the efficacy of an experimental herbicide, F7120, for postemergence control of annual bluegrass and various winter annual broadleaf weeds. Research was conducted in 2008 at the East Tennessee Research and Education Center of the University of Tennessee (Knoxville, TN) on a dormant stand of 'Riveria' bermudagrass maintained as a golf course fairway. Plots (1.5- by 3.0-m) were arranged in a randomized complete block design with three replications. Treatments included F7120 at rates of 343.2, 499.2, 686.4, 998.4, and 1404.0 g ai/ha, sulfentrazone at 210 g ai/ha, and glyphosate at rates of 280.4, 420.7, 560.9, 841.4, and 1121.8 g ai /ha. All treatments were applied on 25 February 2008 using a CO2 powered boom sprayer calibrated to deliver 280.5 L/ha utilizing four, flat-fan, 8002 nozzles at 124 kPa, configured to provide a 1.5-m spray swath. Weed control and bermudagrass green-up were evaluated visually utilizing a 0 to 100 % scale, with greater than 70% weed control considered acceptable. F7120 at 499.2 g ai/ha provided 80% control of annual bluegrass at 21 days after treatment (DAT) and 98.3 % control at 50 DAT. No significant differences in annual bluegrass control were reported following applications of F7120 and glyphosate at rates >= 499.2 and 560.9 g ai/ha, respectively. While F7120 and glyphosate at rates of 499.2 and 560.9 g ai/ha provided the same level of annual bluegrass control at 21 DAT, F7120 provided 93.3% control of henbit at 21 DAT compared to 30.0% for glyphosate. No glyphosate treatment controlled mouseear chickweed [Cerastium fontanum ssp. vulgare (Hartman) Greuter & Burdet] at 7 DAT, and at 14 DAT the highest level of control observed was only 16.7%. Conversely, mouseear chickweed control with F7120 at 499.2 g ai/ha was 33.3 % at 7 DAT and 40.0 % at 14 DAT." |
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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):
Brosnan, J. T., G. K. Breeden, and D. L. Lewis. 2009. A new herbicide for winter annual weed control in dormant bermudagrass turf. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 63:p. 80. |
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| Web URL(s):
http://newss.org/proceedings/proceedings_2009.pdf#page=95
Last checked: 07/17/2013
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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