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| DOI: | 10.21273/HORTSCI.32.3.429E |
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| Web URL(s): | https://journals.ashs.org/hortsci/view/journals/hortsci/32/3/article-p429E.xml?rskey=pTada8
Last checked: 11/19/2019
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Kuhns, Larry J.;
Harpster, Tracey L. |
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| Author Affiliation: | Department of Horticulture, The Pennsylvania State University, University Park, Pennsylvania |
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| Title: | Tolerance of fine fescues to Clethodim |
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| Section: | Poster Session 1B, (abstract: 007-025): Weed Control - Cross-commodity
Other records with the "Poster Session 1B, (abstract: 007-025): Weed Control - Cross-commodity" Section
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| Source: | HortScience. Vol. 32, No. 3, June 1997, p. 429-430. |
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| Publishing Information: | Alexandria, VA: American Society for Horticultural Science |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Clethodim; Fine fescues; Festuca rubra subsp. commutata; Festuca ovina subsp. duriuscula; Festuca rubra; Herbicide resistance; Herbicide injury; Application rates; Turfgrass quality
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| Abstract/Contents: | "Fine fescues are immune to two common graminicides, fluazifop-p-butyl and sethoxydim. This study was initiated to determine the tolerance of three fine fescues: chewings, hard, and creeping red, to clethodim alone or with a crop oil concentrate (COC) or non-ionic surfactant (NIS). Clethodim at 0.25 or 1.0 lb/a was applied on 23 Oct. 1995 and evaluated on 22 May and 9 July 1996. Clethodim at 0.25, 0.5, or 1.0 lb/a was applied on 31 May and evaluated on 9 July 1996. Applied in the fall at 0.25 lb/a alone or with NIS, clethodim had little effect on chewings or creeping red fescue. Some injury to hard fescue was evident on 22 May, but it recovered by 9 July. The addition of COC resulted in moderate injury to all three species, with only partial recovery by 9 July. Severe injury of all species from clethodim applied at 1 lb/a was evident on 22 May. The amount of recovery that occured by 9 July was dependent on the spray additive used. With none, all of the grasses recovered fairly well. With NIS, moderate injury to hard fescue persisted; and with COC, unacceptable injury to all species persisted. Similar results were obtained when the treatments were applied in the spring. The 0.5 lb/a rate caused an intermediate degree of injury. Though none of the clethodim treatments totally killed any of the fine fescues, unacceptable injury was caused by the 0.5 and 1.0 lb/a rates, regardless of additive, and by the 0.25 lb/a + COC treatment." |
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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):
Kuhns, L. J., and T. L. Harpster. 1997. Tolerance of fine fescues to Clethodim. HortScience. 32(3):p. 429-430. |
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| DOI: 10.21273/HORTSCI.32.3.429E |
| Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/32/3/article-p429E.xml?rskey=pTada8
Last checked: 11/19/2019
Requires: PDF Reader |
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MSU catalog number: SB 1 .H64 |
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