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| Publication Type:
| Refereed |
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| Author(s): | Johnson, B. Jack |
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| Author Affiliation: | Prof. Crop and Soil Sci., Univ. of Georgia, Georgia Stn., Griffin, GA |
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| Title: | Influence of diclofop and dithiopyr on spring transition of a bermudagrass (Cynodon dactylon) green overseeded with perennial ryegrass (Lolium perenne) |
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| Source: | Weed Technology. Vol. 8, No. 2, April-June 1994, p. 207-211. |
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| Publishing Information: | Champaign, IL: Weed Science Society of America. |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Cynodon dactylon; Lolium perenne; Overseeding; Diclofop; Dithiopyr; Spring transition
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| Abstract/Contents: | "Diclofop and dithiopyr were applied in April and early May during 1992 and 1993, to a 'Tifway' bermudagrass golf green overseeded with perennial ryegrass, to determine the effects of rates and dates on perennial ryegrass injury and on transition from a mixed cool- and warm-season grass to bermudagrass turf. Diclofop applied as a single application at 0.6 kg/ha or two applications at 0.3 kg/ha during April and/or early May gradually reduced perennial ryegrass during June and July when compared with untreated turf. During this period, both grasses treated with diclofop maintained 94% or greater cover. However, perennial ryegrass was moderately to severely injured from the treatments. Maximum injury from the 0.6 kg/ha rate ranged from 40 to 55% during 1992 and 29 to 33% during 1993. The injury was pronounced over a period of one to three weeks. Maximum injury from 0.3 kg/ha applied on April 3 and repeated at the same rate on April 17 was 28% in 1992 and 37% in 1993. Perennial ryegrass injury from split applications was lower than from the single 0.6 kg/ha rate in 1992. The optimum time and rate for effective spring transition with least amount of perennial ryegrass injury was 0.3 kg/ha applied on April 5 and repeated at the same rate on April 17. Dithiopyr did not affect the spring transition of overseeded perennial ryegrass to bermudagrass, regardless of rate and application date." |
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| Language: | English |
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| References: | 13 |
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| See Also: | Other items relating to: TROVER |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Johnson, B. J. 1994. Influence of diclofop and dithiopyr on spring transition of a bermudagrass (Cynodon dactylon) green overseeded with perennial ryegrass (Lolium perenne). Weed Technol. 8(2):p. 207-211. |
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MSU catalog number: SB 610 .W44 |
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