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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Helms, R. B.;
Coats, G. E.;
Kelly, S. T. |
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| Author Affiliation: | Department of Plant and Soil Science, Mississippi State University, Mississippi State, MS 39762 |
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| Title: | Tolerance of four turfgrass species to clethodim |
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| Meeting Info.: | 50th Annual Meeting, Houston, TX, January 20-22, 1997 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 50, January 1997, p. 189. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Four turfgrasses were evaluated for clethodim tolerance in 1996. These included: common bermudagrass (Cynodon dactylon (L.) Pers.), common centipedegrass (Eremochloa ophiuroides (Munro) Hack.), bahiagrass (Paspalum notatum Fluegge), zoysiagrass (Zoysia japonica Stued 'Meyer'). All species except bahiagrass were evaluated on the turf facilities at the Plant Science Research Center near Starkville, MS. Bahiagrass was evaluated on a highway right-of-way south of Meridian, MS on Interstate 59. Treatments included 0, 0.016, 0.032, 0.063, or 0.125 lb. ai/A clethodim applied in a volume of 25 GPA. Common bermudagrass injury was severe (35 to 75%) from 9 to 17 days after treatment (DAT)with at least 0.032 lb/A clethodim but was not observed by 27 DAT. Bermudagrass growth was reduced as much as 80%; however, this was a function of injury, especially with rates at least 0.032 lb/A. Greatest injury or growth reduction in common centipedegrass was 10% at 9 DAT. Zoysiagrass injury was less than 10% with clethodim rates up to 0.032 lb/A from 9 through 17 DAT. However, with at least 0.063 lb/A, injury was 23 to 45% and did not decline below 10% until 27 DAT. Zoysiagrass growth was reduced 20% or greater with 0.063 lb/A or more; however, as in bermudagrass, this was a function of injury. Bahiagrass was injured less than 5% at 9 DAT, with no injury observed by 17 DAT. Bahiagrass height reduced only with 0.125 lb/A clethodim at 28 DAT. No differences in height were observed between clethodim rates and the untreated from 42 to 56 DAT. Generally, clethodim caused little injury to centipedegrass or bahiagrass." |
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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):
Helms, R. B., G. E. Coats, and S. T. Kelly. 1997. Tolerance of four turfgrass species to clethodim. South. Weed Sci. Soc. Proc. 50:p. 189. |
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MSU catalog number: SB 611 .S6 v. 50 |
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