Full TGIF Record # 336603
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Web URL(s):https://archive.lib.msu.edu/tic/ressum/2023/2023.pdf#page=118
    Last checked: 05/10/2024
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Publication Type:
i
Report
Author(s):Kowalewski, Alec; McDonald, Brian; Braithwaite, Emily; Mattox, Clint
Author Affiliation:Department of Horticulture, Oregon State University
Title:Timings and rates of proxy for suppression of annual bluegrass seed heads on putting greens
Section:Integrated turfgrass management
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Ecophysiology: Light and temperature
Other records with the "Ecophysiology: Light and temperature" Section
Source:Mike Davis Program for Advancing Golf Course Management: 2023 Progress Reports. 2023, p. 110-132.
Publishing Information:Liberty Corner, New Jersey: The United States Golf Association Green Section
# of Pages:23
Language:English
References:0
See Also:Other Reports from this USGA research project: 2020-06-711
Note:Pictures, color
Tables
USGA Summary Points:Years 2 & 3 (2022 & 2023) results determined that sequential applications of Proxy in January, February, March, April, and May totaling 25 fl. oz. per year (less than the annual max of 30 fl. oz. per year) provided the greatest seedhead suppression. Note: in Year 1, this treatment was not included as part of the trial. In year 3, the treatment mentioned above caused unacceptable yellowing in March, which lasted about 3 4 weeks, as a result of the January and February applications (see Image 5, below). This yellowing did not occur in year 2; further investigation is needed. In year 3, the treatment mentioned above caused unacceptable yellowing in March, which lasted about 3-4 weeks, as a result of the January and February applications (see Image 5, below). This yellowing did not occur in year 2; further investigation is needed. In all years (2021, 2022, 2023) the timing of the first application of Proxy applied later (i.e., closer to March), and then followed by March, April and May applications provided greater seedhead suppression than treatments applied earlier (i.e., in October, November, or December) combined with March, April and May applications. The differences from changing the timing of the first application were smaller vs. comparing no early application against making an early application. Note: in Year 3, the October applications were not as effective as in the prior two years. These findings would suggest that late winter Proxy applications combined with spring applications will provide the greatest seedhead suppression in the Pacific Northwest.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Kowalewski, A., B. McDonald, E. Braithwaite, and C. Mattox. 2023. Timings and rates of proxy for suppression of annual bluegrass seed heads on putting greens. USGA Turfgrass Environ. Res. Summ. p. 110-132.
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https://archive.lib.msu.edu/tic/ressum/2023/2023.pdf#page=118
    Last checked: 05/10/2024
    Requires: PDF Reader
    Notes: Item is within a single large file
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