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| Web URL(s): | https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az13593a7.pdf
Last checked: 02/06/2017
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Kopec, D. M.;
Gilbert, J.;
Bates, Michael |
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| Author Affiliation: | Kopec: Department of Plant Sciences; Gilbert: Senior Research Specialist, University of Arizona, Tucson, Arizona; Bates: Superintendent, Country Club of Green Valley |
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| Title: | Application of proxy PGR for Poa seed head suppression, 2000 |
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| Section: | Herbicides and weed control
Other records with the "Herbicides and weed control" Section
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| Source: | 2004 Turfgrass, Landscape and Urban IPM Research Summary [Arizona]. 2004, p. [1-8]. |
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| Publishing Information: | Tucson, AZ: University of Arizona College of Agriculture & Life Sciences |
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| # of Pages: | 8 |
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| Keywords: | TIC Keywords: Growth regulators; Poa annua; Seedhead inhibition; Ethephon; Poa annua control; Application rates; Weed control; Application timing
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| Trade Names: | Proxy |
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| Abstract/Contents: | "Proxy (ethephon) was applied to 100% pure stands of Poa annua as either a single or repeat application 24 days apart at both a five and ten-ounce product rate per 1000 square feet. Percent plot seed heads were decreased significantly on three of five evaluation dates before either the loss of treatment effect and/or environmental conditions triggered profuse flowering (by 20 April, 2000). The five-ounce rate produced moderate seed head supression at 16 and 25 days after the first treatments by which afterward, control was minimal. By April, the five-ounce repeat applications were no better in suppression of sead heads than either of the single applications, regardless of application timing (March 3 or 29). The ten-ounce rates generally produced 40% - 80% greater seed heads supression than the five-ounce rate treatments. Maximum seed head control was achieved by the repeat applications (March 3 and 29) of the ten-ounce rate, which consistently produced between 8% and 19%, seed head cover up until the first ten days of April 2000. Proxy, when applied at the five-ounce/M rate had the greatest effect in seed head suppression early in the test (10 March). Perhaps earlier season applications at the five-ounce rate may be necessary to manifest greater suppression initially, and perhaps in a cumulative fashion for season long control." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: P G Rs 1997-2006 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopec, D. M., J. Gilbert, and M. Bates. 2004. Application of proxy PGR for Poa seed head suppression, 2000. Turfgrass Landscape Urban IPM Res. Summ. p. [1-8]. |
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| Web URL(s):
https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az13593a7.pdf
Last checked: 02/06/2017
Requires: PDF Reader |
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MSU catalog number: b4009236a |
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