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| Web URL(s): | http://wssaabstracts.com/public/17/abstract-235.html
Last checked: 04/18/2013
http://wssaabstracts.com/public/17/proceedings.html
Last checked: 04/18/2013
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | McCullough, P.;
Gomez de Barreda, D.;
Yu, J. |
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| Author Affiliation: | McCullough and Yu: University of Georgia, Griffin, GA; D. Gomez de Barreda: Polytechnic Unv. of Valencia, Valencia, Spain |
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| Title: | Selectivity of methiozolin for annual bluegrass control in creeping bentgrass as influenced by temperature and application timing |
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| Section: | Turf and ornamental crops I
Other records with the "Turf and ornamental crops I" Section
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| Meeting Info.: | Baltimore, Maryland: February 4-7, 2013 |
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| Source: | Proceedings of the Sixty-Seventh Annual Meeting of the Northeastern Weed Science Society. Vol. 67, 2013, p. 91. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Application timing; Herbicide efficacy; Herbicide evaluation; Methiozolin; Poa annua control; Selectivity; Temperature response
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| Abstract/Contents: | "Methiozolin controls annual bluegrass in creeping bentgrass but application timing and temperature could influence efficacy in turf. In field experiments, sequential methiozolin applications totaling 3.36 kg ai/ha provided excellent (>90%) annual bluegrass control at 8 weeks after initial treatment when treatments were initiated in Feb./March or May but programs totaling 0.84 and 1.68 kg/ha provided poor control (<70%) at both timings. Methiozolin at all rates caused minimal turf injury (<8%) but creeping bentgrass was only injured from Feb./March applications. In growth chamber experiments, creeping bentgrass injury from methiozolin at 10 C was 2 and 4x greater than at 20 C and 30 C, respectively, while annual bluegrass injury was similar across temperatures. In laboratory experiments, annual bluegrass had more foliar absorption of 14C-methiozolin than creeping bentgrass at 30/25 C (day/night), compared to 15/10 C, but translocation was similar at both temperatures as >90% of absorbed 14C remained in the treated leaf after 72 hours. Annual bluegrass distributed and recovered more radioactivity to shoots from root-applied 14C-methiozolin than creeping bentgrass while both species had about 2x more distribution to shoots at 30/25 C than 15/10 C. Metabolites were not detected in annual bluegrass or creeping bentgrass at 1, 3, or 7 days after treatment when grown at 15/10 C or 30/25 C suggesting uptake and translocation contributes to methiozolin selectivity in turfgrass." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McCullough, P., D. Gomez de Barreda, and J. Yu. 2013. Selectivity of methiozolin for annual bluegrass control in creeping bentgrass as influenced by temperature and application timing. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 67:p. 91. |
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| Web URL(s):
http://wssaabstracts.com/public/17/abstract-235.html
Last checked: 04/18/2013
http://wssaabstracts.com/public/17/proceedings.html
Last checked: 04/18/2013
Notes: Item is within a single large file |
| 
MSU catalog number: SB 610 .N62 |
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