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| DOI: | 10.21273/HORTTECH04278-19 |
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| Web URL(s): | https://journals.ashs.org/horttech/view/journals/horttech/29/3/article-p265.xml
Last checked: 08/07/2019
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/29/3/article-p265.xml
Last checked: 08/07/2019
Requires: PDF Reader
Notes: Direct download |
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| Publication Type:
| Refereed |
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| Author(s): | Qu, Yuanshuo;
Daddio, Ryan M.;
McCullough, Patrick E.;
Bonos, Stacy A.;
Meyer, William A. |
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| Author Affiliation: | Qu, Daddio, Bonos, and Meyer: Department of Plant Biology, Rutgers University, New Brunswick, NJ; McCullough: Crop and Soil Sciences Department, University of Georgia, Griffin, GA |
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| Title: | Phytotoxicity of methiozolin on fine fescue |
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| Source: | HortTechnology. Vol. 29, No. 3, June 2019, p. 265-270. |
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| Publishing Information: | Alexandria, Virginia: American Society for Horticultural Science |
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| # of Pages: | 6 |
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| Keywords: | TIC Keywords: Festuca brevipila; Festuca rubra subsp. commutata; Festuca rubra subsp. rubra; Fine fescues; Herbicide evaluation; Herbicide injury; Methiozolin; Phytotoxicity; Poa annua; Poa annua control; Variety trials
Author-Supplied Keywords: Dose-response analysis; Fesctuca sp.; Herbicide; Poa annua; Turf management
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| Abstract/Contents: | "Methiozolin is a new herbicide that controls annual bluegrass (Poa annua) in turfgrasses, but the differential tolerance levels of fine fescues (Festuca sp.) has received limited investigation. The objective of this study was to investigate the potential injury from methiozolin when applied to chewings fescue (Festuca rubra ssp. fallax), strong creeping red fescue (Festuca rubra ssp. rubra), and hard fescue (Festuca brevipila). Nine different fine fescue populations (14W2 Comp, Fairmont, and Survivor chewings fescue; FT345, Miser, and Fenway strong creeping red fescue; and 14H4 Comp, Stonehenge, and Oxford hard fescue) were sprayed with methiozolin at five different rates (0.42, 0.83, 1.25, 1.67, and 2.09 lb/acre) at four different application timings [4 weeks before seeding (WBS), 2 WBS, at seeding (AS), and 2 weeks after germination (WAG)]. Untreated controls were also included for each combination. Significant reduction in germination of fine fescue was observed when methiozolin was applied before emergence for all tested application rates. Methiozolin at 1.25, 1.67, and 2.09 lb/acre applied before or at the day of seeding led to complete inhibition of germination in all fine fescue species tested. It was less injurious compared with methiozolin applied at 2 WAG, although a reduction in the percentage of green cover and biomass was observed for application rates greater or equal to 0.83 lb/acre. The hierarchical ranking of species injury from high to low is as follows: hard fescue, chewings fescue, and strong creeping red fescue. A possible solution for annual bluegrass control in fine fescue species with methiozolin is multiple postemergence applications up to a maximum rate of 0.83 lb/acre. Turf managers need to make adjustments in methiozolin application rates and timings based on fine fescue species to maximize selectivity for annual bluegrass control." |
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| Language: | English |
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| References: | 26 |
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| Note: | Tables
Graphs |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Qu, Y., R. M Daddio, P. E. McCullough, S. A. Bonos, and W. A. Meyer. 2019. Phytotoxicity of methiozolin on fine fescue. HortTechnology. 29(3):p. 265-270. |
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| DOI: 10.21273/HORTTECH04278-19 |
| Web URL(s):
https://journals.ashs.org/horttech/view/journals/horttech/29/3/article-p265.xml
Last checked: 08/07/2019
https://journals.ashs.org/horttech/downloadpdf/journals/horttech/29/3/article-p265.xml
Last checked: 08/07/2019
Requires: PDF Reader
Notes: Direct download |
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MSU catalog number: b2917674a |
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