Evaluation of Verticutting and Herbicides for Tropical Signalgrass (Urochloa subquadripara) Control in Turf
| Autor: | David G. Pearsaul, D. Calvin Odero, Ramon G. Leon, Brent A. Sellers, Maria L. Silveira |
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| Rok vydání: | 2018 |
| Předmět: |
0106 biological sciences
Urochloa subquadripara Cynodon transvaalensis Effective management 04 agricultural and veterinary sciences Plant Science Biology Cynodon dactylon biology.organism_classification Weed control 01 natural sciences Mesotrione chemistry.chemical_compound chemistry Agronomy 040103 agronomy & agriculture 0401 agriculture forestry and fisheries Initial treatment Chemical control Agronomy and Crop Science 010606 plant biology & botany |
| Zdroj: | Weed Technology. 32:392-397 |
| ISSN: | 1550-2740 0890-037X |
| DOI: | 10.1017/wet.2018.25 |
| Popis: | Tropical signalgrass (TSG) is one of the most problematic weeds found on golf courses, sports fields, and sod farms in south Florida. The recent ban of monosodium methane-arsonate (MSMA), an organic arsenical herbicide, from urban areas in Florida has left turfgrass managers searching for effective management options. In an effort to avoid relying solely on POST chemical control, this research examined the effect of combining a cultural practice, verticutting, along with PRE and POST herbicides as an integrated weed management approach to controlling TSG in hybrid bermudagrass. Field experiments were conducted at multiple locations over 2 yr in south Florida to: (1) determine whether verticutting before herbicide applications increases TSG control and (2) identify herbicide programs that effectively control TSG. No interactions between verticutting and herbicide programs were detected, but verticutting consistently provided a slight reduction (8% averaged across herbicide treatments) in TSG cover. Treatments containing a PRE herbicide resulted in a significant reduction (20% to 50%) in TSG cover at 52 wk after initial treatment (WAIT), while some POST herbicide treatments reduced TSG cover to 80% TSG control at 4, 8, and 12 WAIT, with some reaching 100% TSG control at 4 WAIT. Based on these data, verticutting may provide limited complementary control, but certain combinations of POST herbicides exhibited excellent (>95%) TSG control. |
| Databáze: | OpenAIRE |
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