Smutgrass (Sporobolus poiretii) Control in Pastures with Herbicides
| Autor: | J. R. Baur, R. E. Meyer |
|---|---|
| Rok vydání: | 1979 |
| Předmět: |
0106 biological sciences
biology 04 agricultural and veterinary sciences Plant Science Cynodon dactylon biology.organism_classification 01 natural sciences Hexazinone 010602 entomology chemistry.chemical_compound Tebuthiuron Agronomy chemistry Bromacil Glyphosate 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Atrazine Sporobolus Agronomy and Crop Science After treatment |
| Zdroj: | Weed Science. 27:361-366 |
| ISSN: | 1550-2759 0043-1745 |
| DOI: | 10.1017/s0043174500044209 |
| Popis: | Smutgrass [Sporobolus poiretii(R. & S.) Hitchc.] in native grass and ‘Coastal’ bermudagrass [Cynodon dactylon(L.) Pers.] pastures near Caldwell, Texas, was sprayed with herbicides in 1975 and 1976. Atrazine [2-chloro-4-(ethylamino)-6-(isopropylamino)-s-triazine] at 4.5 kg/ha; dalapon (2,2-dichloropropionic acid) at 5.6 kg/ha; glyphosate [N-(phosphonomethyl)glycine] at 0.6 and 2.2 kg/ha; and bromacil (5-bromo-3-sec-butyl-6-methyluracil), tebuthiuron {N-[5-(1,1-dimethylethyl)-1,3,4-thiadiazol-2-yl]-N,N′-dimethylurea}, and hexazinone [3-cyclohexyl-6-(dimethylamino)-1-methyl-1,3,5-triazine-2,4(1H,3H)-dione] at 1.1 and 2.2 kg/ha reduced smutgrass foliar cover, particularly if applied from July to November. Dalapon, tebuthiuron, and hexazinone were the most effective herbicides for reducing smutgrass foliar cover. Other grasses generally replaced smutgrass controlled with hexazinone or tebuthiuron, while broadleaf species mostly replaced smutgrass in plots controlled with dalapon or glyphosate. Dalapon, glyphosate, bromacil, hexazinone, and tebuthiuron caused some injury to Coastal bermudagrass for 3 or 4 months following treatment. By fall of the year after treatment Coastal bermudagrass cover in treated plots was equal to or greater than that in untreated plots. |
| Databáze: | OpenAIRE |
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