| |
| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=180
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
|---|
| Publication Type:
| Report |
|---|
| Author(s): | Teuton, T. C.;
Brecke, B. J.;
Unruh, J. B.;
MacDonald, G. E.;
Miller, G. L.;
Ducar, J. T.;
Mueller, T. C. |
|---|
| Author Affiliation: | Department of Agronomy, University of Florida, Gainesville; West Florida Research and Education Center, Jay, FL; Department of Animal and Horticultural Sciences, Berry College, Mt. Berry, GA; University of Tennessee, Knoxville, TN |
|---|
| Title: | Control of tropical signalgrass (Urochloa subquadripara) in St. Augustinegrass sod production |
|---|
| Section: | Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
|
|---|
| Meeting Info.: | Houston, Texas: January 27-29, 2003 |
|---|
| Source: | Proceedings: Southern Weed Science Society: 56th Annual Meeting. Vol. 56, 2003, p. 94. |
|---|
| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
|---|
| # of Pages: | 1 |
|---|
| Keywords: | TIC Keywords: Application timing; Herbicide evaluation; Postemergence herbicides; Preemergence herbicides; Sod production; Stenotaphrum secundatum; Urochloa subquadripara; Weed control
|
|---|
| Abstract/Contents: | "Tropical signalgrass is native to tropical Asia, and it infests the tropical and subtropical regions of the world. It is common throughout Florida and infests ditch banks, sod fields, golf courses, and home lawns. St. Augustinegrass sod growers have struggled with controlling tropical signalgrass because it tolerates many preemergence herbicides and most postemergence herbicides currently registered for use on St. Augustinegrass. Current methods of control for tropical signalgrass in St. Augustinegrass are similar to common bermudagrass (Cynodon dactylon [L.] Pers.) control, which requires multiple spot-treatment applications of glyphosate at 0.4 kg ai ha-1. The objectives of our research were to: 1) evaluate preemergence herbicides for control of tropical signalgrass, 2) evaluate postemergence herbicides for control of seedling tropical signalgrass, 3) evaluate postemergence herbicides for control of mature tropical signalgrass, and 4) evaluate sod regrowth following preemergence herbicide applications. Preemergence trials were conducted in the sp ring of 2001 at H&H Sod Farm in St. Cloud, FL and at Duda Sod Farm in Ft. Lonesome, FL and 2002 at Agroturf Sod and Duda Sod in Ft. Lonesome, FL. Good control ( > 75%) at 8 WAA was achieved with benefin + oryzalin, benefin + trifluralin, diclofop, dithiopyr, imazapic, im azapic + 2,4-D, imazapyr, isoxaflutole, and oryzalin. By 11 WAA only benefin + oryzalin, benefin + trifluralin, imazapic, and imazapic + 2,4-D provided > 75% tropical signalgrass control. However, use of imazapic, imazapic + 2,4-D, and imazapyr may cause excessive damage to St. Augustinegrass. Early postemergence trials were conducted in a greenhouse at the University of Florida in Gainesville, FL. Excellent control (>= 89%) was achieved with asulam and trifloxysulfuron at the 2, 4, 6, and 8-leaf stage. Good control (>= 60%) was achieved with ethofumesate, imazaquin, and metsulfuron when sprayed prior to the 8-leaf stage. Postemergence field studies were conducted in 2000 and 2001 at the University of Florida West Florida Re search and Education Center in Jay, FL. None of the 20 postemergence herbicide treatments provided adequate control of tropical signalgrass in either trial. A study to evaluate St. Augustinegrass sod regrowth was conducted at H&H sod farm in 2001 and 2002. Preemergence herbicide treatments of atrazine, atrazine + metolachlor, benefin, benefin + oryzalin, benefin + trifluralin, DCPA, dithiopyr, metolachlor, metolachlor + simazine, oryzalin, oxadiazon, pendimethalin, prodiamine, simazine, and trifluralin were applied to St. Augustinegrass strips one week after harvest. During the study there were no visual signs of injury, discoloration, stunting, or reductions in St. Augustinegrass quality. At the conclusion of the study the sod was harvested and there were no reduction in slab weight compared to the untreated check and no differences in root, shoot, or stolon weights or root diameters." |
|---|
| Language: | English |
|---|
| References: | 0 |
|---|
| Note: | "Invasive weeds: Real or imagined threat?"
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, G. L. Miller, J. T. Ducar, et al. 2003. Control of tropical signalgrass (Urochloa subquadripara) in St. Augustinegrass sod production. South. Weed Sci. Soc. Proc. 56:p. 94. |
| Fastlink to access this record outside TGIF: https://tic.msu.edu/tgif/flink?recno=224585 |
| If there are problems with this record, send us feedback about record 224585. |
| Choices for finding the above item: |
|---|
| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2003%20Proceedings-SWSS.pdf#page=180
Last checked: 07/15/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
| Find from within TIC:
Digitally in TIC by file name: swssp2003 |
| Request through your local library's inter-library loan service (bring or send a copy of this TGIF record) |
