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| Web URL(s): | https://www.swss.ws/wp-content/uploads/2023_SWSS_Proceedings_Final-002.pdf#page=266 Last checked: 01/05/2024 Requires: PDF Reader Notes: Item is within a single large file |
| Publication Type: | Report |
| Content Type: | Abstract or summary only |
| Author(s): | Henry, G. M.; Begitschke, E.; Tucker, K. A. |
| Author Affiliation: | University of Georgia, Athens, GA |
| Title: | Long-term annual bluegrass control with cumyluron |
| Section: | 2023 meeting abstract Other records with the "2023 meeting abstract" Section |
| Meeting Info.: | January 23-26, 2023 |
| Source: | Proceedings of the Southern Weed Science Society 76th Annual Meeting. Vol. 76, 2023, p. 186. |
| Publishing Information: | Baton Rouge, LA: Southern Weed Science Society |
| # of Pages: | 1 |
| Abstract/Contents: | "Annual bluegrass (Poa annua L.) is one of the most problematic weeds in turfgrass. However, few postemergence herbicides are available for safe, efficacious control of annual bluegrass in creeping bentgrass putting greens. Research was conducted on an 'SR 1020' creeping bentgrass putting green at The Orchard Golf and Country Club in Clarkesville, GA from 2020 to 2022. The putting green was maintained at a height of 0.3 cm and had a recurrent annual bluegrass infestation of approximately 50% cover. The soil was a USGA spec sand-based profile and the putting green received significant shade throughout the day. Herbicides were applied with a CO2 backpack sprayer calibrated to deliver 1,219 L ha-1 at 241 kPa. Treatments were initiated on 22 September 2020 and consisted of cumyluron (0.5, 1.1, and 2.2 kg ai ha-1), methiozolin at 0.5 kg ai ha-1, and bensulide at 14.3 kg ai ha-1. Sequential applications were made in October and the following spring for two consecutive years, depending on treatment. Plots were 1.5 x 1.5 m and were arranged in a randomized complete block design with four replications. A non-treated check was included for comparison. Annual bluegrass control 10 weeks after initial treatment (WAIT) was greatest in response to methiozolin (86%), while all other treatments resulted in = 45% control. Annual bluegrass control increased in response to cumyluron at the highest rate (2.2 kg ai ha-1) 33 WAIT resulting in 58% control, while control with methiozolin remained at 86%. At 66 WAIT, control was 100% in response to methiozolin and 86% in response to cumyluron at 2.2 kg ai ha-1. Annual bluegrass control 80 WAIT remained the same for methiozolin and cumyluron at 2.2 kg ai ha-1, while control was reduced to = 65% for the lower cumyluron rates. Bensulide never resulted in > 13% annual bluegrass control during the duration of the experiment. Although excellent annual bluegrass control was achieved with methiozolin and cumyluron at 2.2 kg ai ha-1, control with methiozolin may have been exacerbated by the presence of shade on the putting green." |
| Language: | English |
| References: | 0 |
| See Also: | Original version appears in ASA, CSSA, SSSA International Annual Meeting, 2023, p. 143673, R=324901.R=324901 |
| Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Henry, G. M., E. Begitschke, and K. A. Tucker. 2023. Long-term annual bluegrass control with cumyluron. South. Weed Sci. Soc. Proc. 76:p. 186. |
| Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/333864 |
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| Web URL(s) : | https://www.swss.ws/wp-content/uploads/2023_SWSS_Proceedings_Final-002.pdf#page=266 Last checked: 01/05/2024 Requires: PDF Reader Notes: Item is within a single large file |
| MSU catalog number: | b2207931 |
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