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| Web URL(s): | https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az13593a8.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.;
Pessarakli, M. |
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| Author Affiliation: | Kopec: Department of Plant Sciences; Gilbert: Senior Research Specialist; Pessarakli: Senior Research Specialist, Turf, Plant Sciences, University of Arizona, Tucson, Arizona |
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| Title: | Evaluation of timing applications of ethephon and [trinexapac - ehtyl] for seed head supression of Poa annua |
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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: Tank mix; Application timing; Growth regulators; Evaluations; Ethephon; Trinexapac-ethyl; Seedhead inhibition; Poa annua; Poa annua control; Weed control; Application rates; Color
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| Trade Names: | Proxy; Primo |
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| Abstract/Contents: | "Seed head production from Poa annua is problematic on winter turfs, whether they are overseeded or not. Flowering culms are unsightly, prevent a uniform surface, and insure a continuous crop of seeds for the future. A field test was conducted to evaluate the effects of PROXY and PROXY/PRIMO PGR tank mix for seed head control. Treatments were applied on three different dates in order to evaluate the degree of response of treatments and help define treatment window applications for future programs. PROXY when applied alone at 5 ounces/product/M produced a maximum of 60% seed head control at 26 days after a single application on February 15, and 83% seed head control at 27 days after a single application on March 1. A tank mix of PROXY/PRIMO (5.0/0.25 ounces/product/M) generally produced greater seed head control than PROXY alone. The tank mix produced seed head control effects quicker, greater, and longer than PROXY alone. Seed head supression and percent seed head control was greatest when products were applied initially on either February 15 or March 1, 2001. PROXY/PRIMO produced the darkest color turf when applied on either February 15 or March 1. At least three tank mixes seem to be needed, applied monthly to supress/control seed heads throughout the winter/spring season." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopec, D. M., J. Gilbert, and M. Pessarakli. 2004. Evaluation of timing applications of ethephon and [trinexapac - ehtyl] for seed head supression of Poa annua. 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/az13593a8.pdf
Last checked: 02/06/2017
Requires: PDF Reader |
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MSU catalog number: b4009236a |
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