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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Anderson, D. H.;
Coats, G. E. |
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| Author Affiliation: | Dept. Plant Pathology & Weed Science, Mississippi State University, Misissippi State, MS. |
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| Title: | Evaluation of Sulfonated Urea Herbicides for Turfgrasses |
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| Meeting Info.: | Held: January 14-16, 1985, Houston, TX. |
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| Source: | Proceedings of the 38th Southern Weed Science Society. Vol. 39, 1985, p. 98. |
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| Publishing Information: | Southern Weed Science Society |
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| Keywords: | TIC Keywords: Urea; Herbicides; Diodia virginiana; Paspalum notatum; Eremochloa ophiuroides; Cynodon dactylon; Cynodon transvaalensis; Chlorsulfuron; Nitrogen; Sethoxydim; Tank mix; Herbicide resistance; Application rates; Application timing; Herbicide application; Herbicide rates
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| Abstract/Contents: | "Sulfonated urea herbicides were evaluated for Virginia buttonweed (Diodia virginiana L.), bahiagrass (OPaspalum notatum Flugge) contro and turf tolerance. Treatments were arranged in a randomized complete block design with four replications, except in one study which was arranged in a two-way whole split plot with four replications. Centipedegrass [Eremochloa ophiuroides (Munio) Hack.] tolerance to sulfometuron methyl following seed establishment was studied under greenhouse conditions in 1983. Sulfometuron methyl was applied at rates of 0.018, 0.035, 0.071, and 0.14 kg/ha to centipedegrass at the 2-4 leaf, 4-6 leaf, 2-3 tiller stages, and to mature sod. Injury was excessive at all seedling stages except at the 0.018 kg/ha rate on the 2-3 tiller stage. Mature centipedegrass was not injured at any rate. Field tolerance studies were conducted in 1984 on established centipedegrass, 'Tifway' bermudagrass (Cynodon dactylon x C. transvaalensis), and common bermudagrass (C. dactylon L.) using sulfometuron methyl at 0.14 and 0.28 kg/ha and chlorsulfuron at 0.07 and 0.14 kg/ha with 0 or 49 kg/ha or nitrogen. Injury was observed only with sulfometuron methyl at 0.28 kg/ha and with 49 kg/ha of nitrogen on common bermudagrass. Studies with sulfometuron methyl alone or with MSMA (2.24 kg/ha) as a single or sequential treatment, for bahiagrass control in a bermudagrass turf increased control of bahiagrass within the first 30-40 days after treatment. No significant increase in activity was observed at later rating dates. Sulfometuron methyl was applied at 0.07 and 0.14 kg/ha with varying application dates for bahiagrass control in centipedegrass. Initial applications were made to all treatments with sequentials being either 3 or 6 weeks thereafter. Control with 3 week sequential applications was significantly better than at 6 week sequential or one application of sulfometuron methyl at 0.07 kg/ha. Sulfometuron methyl at 0.07 or 0.14 kg/ha and/or sethoxydim at 0.28 kg/ha were applied as initial treatments with sequential was significantly better than one application of either sulfometuron methyl and/or sethoxydim and the 6 week sequential. Although not significantly different, the addition of sethoxydim to sulfumeturon methyl increased the activity of sulfometuron methyl on bahiagrass. No significant control of Virginia buttonweed was observed with sulfometuron methyl, chlorsulfuron, DPX 6376 (methyl 2-[[[[(4-methoxy-6-methyl-1, 3, 5-triazin-2-yl) amino] sulfonyl] benzoate), and DPX 6025 (2-(([(4-chloro-6-methoxypyrimidine-2-yl) amino carbonyl] amino sulfonyl)) benzoic acid, ethyl ester) at rates up to 0.14 kg/ha. Additionally, the activity of 2,4-D or MSMA on Virginia buttonweed control was not significantly increased by tank mixing with the sulfonated urea herbicides." |
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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):
Anderson, D. H., and G. E. Coats. 1985. Evaluation of Sulfonated Urea Herbicides for Turfgrasses. Proc. Meet. South. Weed Sci. Soc. 39:p. 98. |
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MSU catalog number: SB 611 .S6 v.38 |
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