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Publication Type:
| Report |
Content Type: | Abstract or Summary only |
Author(s): | Teuton, T. C.;
Brecke, B. J.;
Unruh, J. B.;
MacDonald, G. E.;
Tredaway, J. A. |
Author Affiliation: | University of Florida, Gainesville, FL; University of Florida, West Florida Research and Education Center, Jay, FL |
Title: | CGA 362622 for perennial weed management in warm season turfgrasses |
Section: | Section II: Weed management in turf, pasture, and rangeland Other records with the "Section II: Weed management in turf, pasture, and rangeland" Section
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Meeting Info.: | 54th Annual Meeting, Biloxi, Mississippi: January 22-24, 2001 |
Source: | Southern Weed Science Society Proceedings. Vol. 54, 2001, p. 69. |
Publishing Information: | Champaign, IL: Southern Weed Science Society. |
# of Pages: | 1 |
Keywords: | TIC Keywords: Perennial weeds; Herbicide evaluation; Weed control; Warm season turfgrasses; Cynodon dactylon; Cynodon transvaalensis; Panicum repens; Cyperus rotundus; Cyperus esculentus; Kyllinga brevifolia; Stenotaphrum secundatum; Herbicide resistance; Application rates
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Cultivar Names: | Tifway 419; Floratex; TifEagle; Bitter Blue; Delmar; Floratam; Palmetto; Raleigh |
Abstract/Contents: | "Experiments were conducted during 1998, 1999 and 2000 at the University of Florida, West Florida Research and Education Center for perennial weed management in warm season turfgrasses with the experimental compound CGA 362622. Perennial control was evaluated in established bermudagrass (Cynodon spp.) varieties Tifway 419 and Floratex were treated with CGA 362622 at .022 to [.]066 lb ai/A in single and multiple applications. Efficacy ratings were taken for torpedograss (Panicum repens L.), purple nutsedge (Cyperus rotundus L.), yellow nutsedge (Cyperus esculentus L.), and green kyllinga [Cyperus brevifolius (Rottb.) Hassk.]. TifEagle bermudagrass and Bitterblue, Delmar, Floratam, Palmetto and Raleigh St. Augustinegrass' [Stenotaphrum secondatum (Walt.) Kuntze] were also evaluated for tolerance to CGA 362622 at 0.022 to 0.066 lb a.i./A in single and multiple applications. Treatments were applied using a CO2 backpack sprayer set at 20 psi and clibrated to deliver 20 gpa spray volume. Plots were 5 feet wide and 5 to 10 feet long. Turfgrass damage was rated on a scale of 0-9 (0=death, 9=no damage) and weed control was measure on a scale of 0-100 (0=no control, 100=complete control). Multiple applications of CGA 362622 applied at 0.044 lb a.i./A 6 weeks apart provided excellent control of torpedograss. Single applications of CGA 362622 applied at 0.044 lb a.i./A provided good to excellent control of purple nutsedge, yellow nutsedge, and green kyllinga. TifEagle bermudagrass had excellent tolerance to multiple rates and applications of CGA 362622. All St. Augustinegrass varieties exhibited tolerance to one applications of CGA 362622 at 0.044 lb a.i./A, while only Floratam was tolerant to multiple applications 4 weeks apart at this rate. Bitterblue, Delmar, and Floratam were tolerant to one application of CGA 362622 at 0.066 lb a.i./A, but Palmetto and Raleigh were not tolerant. Bitterblue, Floratam, and Raleigh were tolerant to multiple applications 4 weeks apart of CGA 362622 at 0.022 lb a.i./A, while Delmar and Palmetto exhibited no tolerance at these application rates." |
Language: | English |
References: | 0 |
Note: | This item is an abstract only! |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Teuton, T. C., B. J. Brecke, J. B. Unruh, G. E. MacDonald, and J. A. Tredaway. 2001. CGA 362622 for perennial weed management in warm season turfgrasses. South. Weed Sci. Soc. Proc. 54:p. 69. |
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