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| Publication Type:
| Refereed |
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| Author(s): | Wiecko, Greg;
Couillard, Andree-Anne |
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| Author Affiliation: | Wiecko: Associate Professor, Agricultural Experiment Station, University of Guam, College of Agriculture and Life Sciences, Mangilao, Guam; and Couillard: Turfgrass scientist, The Scotts Company, Marysville, OH |
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| Title: | Sequential postemergence/Preemergence treatment for crabgrass control in bermudagrass turf |
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| Source: | Journal of Environmental Horticulture. Vol. 17, No. 3, September 1999, p. 103-107. |
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| Publishing Information: | Washington, DC: Horticultural Research Institute |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Digitaria; Cynodon dactylon; Postemergence herbicides; Preemergence herbicides; Oxadiazon; Weed control; MSMA; Pendimethalin; Dithiopyr; Application rates; Discoloration; Herbicide evaluation; Application frequency; Weed density; Crabgrass control; Quality; Golf fairways
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| Geographic Terms: | Guam |
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| Abstract/Contents: | "Crabgrass (Digitaria spp.) was controlled in common bermudagrass [Cynodon dactylon (L.) Pers.] with postemergence (POST) and preemergence (PRE) herbicides on a tropical island of Guam. The recommended label rates of PRE herbicides oxadiazon at 3.4 kg/ha (3.0 lb/A), pendimethalin at 3.4 kg/ha (3.0 lb/A), and dithiopyr at 0.6 kg/ha (0.5 lb/A) were applied initially and one-half recommended rates were applied to one-half of the plots 8 weeks later. MSMA was applied as the POST herbicide treatment in 1, 2, or 3 applications. The first MSMA treatment was applied in sequence with the PRE herbicides and followed by either 1 or 2 additional MSMA applications at 1 or 1 and 2 weeks after the initial MSMA application. Two weekly applications of MSMA assured complete control of existing crabgrass. Single applications of pendimethalin, oxadiazon, and dithiopyr at full rates assured ā„90% control for a period of 20 to 26 weeks during the rainy season and for 6 to 12 weeks during the dry season. There was no advantage of the second PRE treatments at a reduced rate. On fairways where crabgrass indestation was 95%, an application of MSMA resulted in severe turf discoloration lasting 5-6 weeks." |
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| Language: | English |
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| References: | 10 |
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| See Also: | Other items relating to: M S M A |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Wiecko, G., and A.-A. Couillard. 1999. Sequential postemergence/Preemergence treatment for crabgrass control in bermudagrass turf. J. Environ. Hortic. 17(3):p. 103-107. |
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MSU catalog number: SB 118.48 .J68 |
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