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Web URL(s): | https://scisoc.confex.com/crops/2012am/webprogram/Paper74069.html Last checked: 11/21/2012 |
Publication Type: | Report |
Content Type: | Abstract or Summary only |
Author(s): | Han, Kyung M.; Kaminski, John E. |
Author Affiliation: | Plant Science, Pennsylvania State University, University Park, PA |
Title: | Influence of methiozolin rates and application timings on Poa annua populations |
Section: | Management of turfgrass, thatch, soil and irrigation Other records with the "Management of turfgrass, thatch, soil and irrigation" Section |
Meeting Info.: | Cincinnati, Ohio: October 21-24, 2012 |
Source: | ASA, CSSA and SSSA Annual Meetings [2012]. 2012, p. 74069. |
Publishing Information: | Madison, Wisconsin: American Society of Agronomy and Crop Science Society of America and Soil Science Society of America |
# of Pages: | 1 |
Keywords: | TIC Keywords: Agrostis stolonifera; Herbicide efficacy; Methiozolin; Poa annua control; Postemergence herbicides; Turfgrass quality |
Abstract/Contents: | "Methiozolin is an experimental post-emergent herbicide designed to selectively control annual bluegrass (Poa annua L.; ABG). The objective of this study was to evaluate the herbicide's efficacy to control ABG when applied at two rates and initiated at three seasonal timings. A field study was initiated in 2011 on a golf course putting green with a mixed stand of creeping bentgrass (Agrostis stolonifera L.; CBG) (~50%) and ABG (~50%) located in State College, PA. Plots measured 0.9 x 1.8 m and were set up as a 2 x 3 incomplete factorial and arranged in a randomized complete block design with four replications. Main factors included methiozolin rates (0.5 kg a.i. ha-1 and 1.0 kg a.i. ha-1) and timings (spring, summer and autumn). Treatments were initiated on 4 May, 15 June or 31 Aug and applied every 2 weeks until the total herbicide load reached 3.0 kg a.i. ha-1. On 4 Nov 2011, turf within plots treated with methiozolin, regardless of timing or rate, had < 10% living ABG while the untreated plots had 31%. When plots were rated on 18 Apr 2012, however, autumn applications of methiozolin resulted in the least percent ABG (1 to 3%) when compared to all other treatments. Few differences in percent ABG existed between methiozolin treatments applied in the summer (56 to 57%) and the untreated control (65%). Moderate percentages of ABG were observed within plots treated with methiozolin in the spring and differences in percent ABG between the 0.5 kg a.i. ha-1 rate (46%) and 1.0 kg a.i. ha-1 rate (28%) were significant. Although ABG suppression was possible, overall turfgrass quality declined in select treatments and injury was moderate to severe at times. Methiozolin rates and application timings should be considered when a slow and non-invasive conversion to CBG is desired." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only |
ASA/CSSA/SSSA Citation (Crop Science-like – may be incomplete): | Han, K. M., and J. E. Kaminski. 2012. Influence of methiozolin rates and application timings on Poa annua populations. Int. Ann. Meet. p. 74069. |
Fastlink to access this record outside TGIF: | http://tic.msu.edu/tgif/flink/RECNO/213424 |
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Web URL(s) : | https://scisoc.confex.com/crops/2012am/webprogram/Paper74069.html Last checked: 11/21/2012 |
MSU catalog number: | TIC Vertical - Serials |
Find from within TIC: | Digitally in TIC by record number. |
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