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| Web URL(s): | http://www.newss.org/proceedings/proceedings_1987_vol41.pdf#page=240
Last checked: 07/25/2013
Requires: PDF Reader
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): | Vrabel, Thomas E. |
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| Author Affiliation: | Field Development Representative, Union Carbide Agricultural Products Company, Inc., Ellicott City, MD. |
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| Title: | Control of Knotweed, White Clover, and other Broadleaf Weeds in Turf |
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| Meeting Info.: | Held: January 6-8, 1987, Williamsburg, VA. |
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| Source: | Proceedings of the 1987 Annual Meeting of the Northeastern Weed Science Society. Vol. 41, 1987, p. 240-241. |
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| Publishing Information: | Ithaca, N. Y. : Northeastern Weed Science Society |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Polygonum; Trifolium repens; Broadleaf weeds; Weed control; Plantago major; Taraxacum officinale; Cerastium holosteoides; Herbicides; 2,4-D; Bromoxynil; Triclopyr; Dicamba; Cool season turfgrasses; Herbicide rates
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| Abstract/Contents: | "During 1985 and 1986 four field experiments were conducted in order to compare the efficacy of amine and ester formulations of 2,4-D and 2,4-DP on broadleaf weeds in cool season turf. Weed species present in the experiments included prostrate knotweed (Polygonum avicular L.), white clover (Trifolium repens L.), broadleaf plantain (Plantago major L.), dandelion (Taraxacum officinale Weber in Wiggins) and mousear chickweed (Cerastium vulgatum L.). The amine and ester formulations of the combination of 1.12 kg/ha 2,4-D + 1.12 kg/ha 2,4-DP gave excellent control of white clover, broadleaf plantain, dandelion,and mousear chickweed but only fair (75-80%) control of prostrate knotweed. The 0.84 + 0.84 kg/ha rate of these combinations had a slight reduction in white clover control but were excellent on broadleaf plantain, dandelion, and mousear chickweed. Increasing the rate of the amine combination to 1.68 kg/ha 2,4-D + 1.68 kg/ha 2,4-DP did not appreciably improve prostrate knotweed control. The treatments of 1.12 kg/ha 2,4-D amine + 0.11 kg/ha dicamba, 1.12 kg/ha 2.4-D ester + 0.56 kg/ha triclopyr and 1.12 kg/ha 2,4-D ester + 0.56 mecoprop + 0.11 kg/ha dicamba provided good control of prostrate knotweed and excellent control of the other weed species. The addition of 0.25, 0.5 or 1 kg/ha of bromoxynil to the amine combination of 1.12 kg/ha 2,4-D + 1.12 kg/ha 2,4-DP did not improve efficacy. The higher rates of bromoxynil caused a rapid necrosis of leaf tissue which appeared to reduce translocation of the phenoxy herbicides to the weed's root system. As a result, many weeds resprouted within four weeks of herbicide applicaitona. No turf phytotoxicity was observed with any of the treatments evaluated in the studies." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Other items relating to: 2, 4 - D in Turf |
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| Note: | Table
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vrabel, T. E. 1987. Control of Knotweed, White Clover, and other Broadleaf Weeds in Turf. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 41:p. 240-241. |
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| Web URL(s):
http://www.newss.org/proceedings/proceedings_1987_vol41.pdf#page=240
Last checked: 07/25/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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