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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Gregg, M. F.;
Higingbottom, J. K.;
Lowe, D. B.;
McCarty, L. B. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Preemergence crabgrass (Digitaria sp.) and goosegrass (Eleusine indica) control in bermudagrass |
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| 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.: | 53rd Annual Meeting, Tulsa, OK, January 24-26, 2000 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 53, 2000, p. 56-57. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 2 |
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| Keywords: | TIC Keywords: Digitaria; Eleusine indica; Weed control; Preemergence weed control; Cynodon dactylon; Herbicide evaluation; Oryzalin; Prodiamine; Oxadiazon; Dithiopyr; Metolachlor; Golf driving ranges; Crabgrass control
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| Abstract/Contents: | "Crabgrass and goosegrass are among the most common summer annual grass weeds in bermudagrass turf. These species thrive in compacted and/or closely mowed areas, such as golf course fairways and roughs. Field studies were conducted in March and September 1999 to evaluate herbicides for preemergence control of crabgrass and goosegrass in bermudagrass turf. Preemergence crabgrass control was evaluated in a common bermudagrass golf course rough maintained at 3 inches in Pendleton, S.C. Plot size measured 5ft x 10ft and four replications were utilized. The preemergence goosegrass control study was conducted in a golf course driving range maintained at 0.75 inches in Anderson, S.C. Plot size for the goosegrass study measured 10ft x 20ft with three replications. Experimental design of each study was a randomized complete block. Data were subjected to ANOVA with means separated using LSD (p=0.05). The crabgrass control study included 15 treatments and consisted of eitherone [either one] or two application(s) at 4 or 8 weeks after initial treatment (WAI). All treatments were initially applied to dormant turf on March 10, 1999. Treatments applied only once included Surflan 4 SL (oryzalin) at 3.0 lb ai/A, Barricade 65 WG (prodiamine) at 0.5 lb ai/A, Ronstar 2 G (oxadiazon) at 3.0 lb ai/A, Pendulum 60 DG (pendimethalin) at 3.0 lb ai/A and Dimension 1 EC (dithiopyr) at 0.5 lb ai/A. Treatments applied on March 10 and 4 WAI included Pennant Magnum 7.6 EC (metolachlor) at 1.5 lb ai/A, Pennant Magnum 7.6 EC at 2.0 lb ai/A, Pennant 8.0 EC (metolachlor) at 2.3 lb ai/A and Pennant 8.0 EC at 3.0 lb ai/A. Treatments applied on March 10 and 8 WAI included Surflan 4 SL at 1.5 lb ai/A, initially Team Pro 0.9 G (benefin + trifluralin) at 2.0 lb ai/A followed by Surflan 4 SL at 1.5 lb ai/A (8 WAI), Team Pro 0.9 G at 2.0 lb ai/A, Barricade 65 WG at 0.38 lb ai/A, Pendulum 60 DG at 1.5 lb ai/A, and Dimension 1 EC at 0.38 lb ai/A. Treatments were applied with a CO2 pressurized sprayer calibrated to deliver 30 gal/A. The goosegrass control study included 12 treatments and consisted of either one application or an initial application followed by a sequential application at 8 WAI. All treatments were initially applied on March 30, 1999. Treatments applied only once included, Ronstar 2 G at 3.0 lb ai/A, Barricade 65 WG at 0.5 lb ai/A, Pendulum 60 at 3.0 lb ai/A, Surflan 4 SL at 3.0 lb ai/A, Dimension 1 EC at 0.5 lb ai/A, and Regal Star 1.2 G (oxadiazon + prodiamine) at 3.0 lb ai/A. Treatments applied on March 30 and 8 WAI included Ronstarat [Ronstar at] 1.5 lb ai/A, Barricade 65 WG at 0.38 lb ai/A, Pendulum 60 DG at 1.5 lb ai/A, Surflan 4 SL at 1.5 lb ai/A, Dimension 1 EC at 0.38 lb ai/A, and Regal Star at 1.5 lb ai/A. Treatments were applied with a COo2 pressurized sprayer calibrated to deliver 20 gal/A. Crabgrass control was rated July 9, 1999 and September 21, 1999; while goosegrass control was rated on July 14, 1999 and September 23, 1999. Weed control was visually rated on a 0-100% scale with 0% = no control and 100% = complete control. All treatments provided >80% crabgrass control on July 9. On September 23, most treatments provided >80%. Exceptions included, Barricade at 0.5 and 0.38 lb ai/A and Pennant at 2.3 lb ai/A which provided 74-75% control; whereas Ronstar at 3.0, Dimension at 0.5 and Pennant Magnum at 1.5 lbs ai/A provided 48-66% control at the time. Ronstar at 3.0 lb ai/A and Regal Star at 3.0 and 1.5 lb ai/A provided best goosgrass control (92, 88, and 83%, respectively) on July 14 and September 23 (88, 90, and 77%, respectively). Ronstar at 1.5 lb ai/A provided 75% goosegrass control on July 14 and 62% on September 23. Pendulum at 3.0 lb ai/A provided 42% and 60% control on July 14 and September 23, respectively. All other treatments provided <40% goosegrass control at either rating date." |
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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):
Gregg, M. F., J. K. Higingbottom, D. B. Lowe, and L. B. McCarty. 2000. Preemergence crabgrass (Digitaria sp.) and goosegrass (Eleusine indica) control in bermudagrass. South. Weed Sci. Soc. Proc. 53:p. 56-57. |
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