Full TGIF Record # 77285
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Web URL(s):https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az12463a3.pdf
    Last checked: 02/06/2017
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Publication Type:
i
Report
Author(s):Kopec, D. M.; Gilbert, J.; Pessarakli, M.
Author Affiliation:Kopec: Extension Specialist, Turf, Plant Sciences, University of Arizona; Gilbert: Research Specialist, Turf, Plant Sciences, University of Arizona; Pessarakli: Research Specialist Senior, Turf, Plant Sciences, University of Arizona
Title:Evaluation of timing applications of ethephon and trinexepac-ethyl for seed head suppression of Poa annua
Section:Herb and weed control
Other records with the "Herb and weed control" Section
Source:Turfgrass, Landscape and Urban IPM Research Summary [Arizona]. 2001, p. 35-44.
# of Pages:10
Publishing Information:Tucson, AZ: University of Arizona
Series:P-126
AZ1246
Keywords:TIC Keywords: Growth regulators; Application timing; Ethephon; Trinexapac-ethyl; Poa annua control; Seedhead inhibition; Application rates; Color
Trade Names:Proxy; Primo
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 a 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 treatments 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 suppression 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 suppress/control seed heads throughout the winter/spring season.
Language:English
References:0
Note:Tables
Graphs
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kopec, D. M., J. Gilbert, and M. Pessarakli. 2001. Evaluation of timing applications of ethephon and trinexepac-ethyl for seed head suppression of Poa annua. Turfgrass Landscape Urban IPM Res. Summ. p. 35-44.
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Web URL(s):
https://extension.arizona.edu/sites/extension.arizona.edu/files/pubs/az12463a3.pdf
    Last checked: 02/06/2017
    Requires: PDF Reader
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