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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Estes, A. G.;
Higingbottom, J. K.;
McCarty, L. B. |
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| Author Affiliation: | Department of Horticulture, Clemson University, Clemson, SC |
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| Title: | Preemergence Poa annua control in non-overseeded turf |
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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. 53. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Preemergence weed control; Poa annua control; Oryzalin; Pendimethalin; Prodiamine; Trifluralin; Benfluralin; Oxadiazon; Dithiopyr; Visual evaluation; Herbicide combinations; Weed resistance to herbicides
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| Abstract/Contents: | "Annual bluegrass (Poa annua) is a winterannual [winter annual] weed common in overseeded and non-overseeded turf. In the temperate zone, warm-season grasses go dormant leaving large areas of brown turf if not overseeded. Poa annua is a bunch-type grass with light green leaves, which produces prolific seedheads. In recent years, there has been an increased occurrence of Poa annua resistance to dinitroaniline and triazine herbicides. The purpose of this research was to determine the effects of different preemergence herbicides for Poa annua control on non-overseeded turf. In the fall of 1998, a trial was conducted at Southern Oaks Golf Course, in Piedmont, SC on a non-overseeded bermudagrass golf course driving range forpreemergencePoa [for preemergence Poa] annua control. The study consisted of twelve treatments, replicated 3 times. Plot size for each treatment measured 10 ft by 10 ft. Treatment applications were applied using a CO2 backpack sprayer at 20 GPA with 8003 flat fan nozzle tips. The golf course maintenance staff maintained the experimental area. Initial preemergence applications were made, on September 2, 1999, with Surflan 4.0 SL (oryzalin) at 1.5 lb ai/A, Pendulum 60 WG (pendimethalin) at 1.5 lb ai/A, Barricade 65 WG (prodiamine) at 0.5 lb ai/A, Team Pro 0.86 G (benfin [benefin] + triflualin) at 3.0 lb ai/A, XL 2.0 G (benefin + oryzalin) at 3.0 lb ai/A, Ronstar 2.0 G (oxadiazon) at 3.0 lb ai/A, Dimension 1 EC (dithiopyr) at 0.5 lb ai/a [ai/A]. Four additional treatments of Surflan, Pendulum, Barricade, and Dimension were also applied initially. These received an additional treatment, applied at the same rate, on October 28, 1998. Visual Poa annua control ratings were taken on January 7, February 5, February 17, March 16, and April 27 1999. Ratings were based on a scale of 0-100% with 0% representing no control and 100% representing no Poa annua present. Minimum acceptable Poa annua control was 70%. This study was concluded on April 27, 1999. In the final visual ratings, excellent control (90%-100%) resulted from single applications of Barricade 65 WG and XL 2G and dual applications of Pendulum 60 WG and Barricade 65 WG. Good control (80-89%) resulted from single applications of Pendulum 60 WG, Team Pro 0.86 G, and Ronstar 2G and a dual application of Surflan 4SL. Fair control (70-79%) resulted from a dual application of Dimension 1 EC. Unacceptable control (<70%) resulted from single applications of Surflan 4 SL and Dimension 1 EC." |
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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):
Estes, A. G., J. K. Higingbottom, and L. B. McCarty. 2000. Preemergence Poa annua control in non-overseeded turf. South. Weed Sci. Soc. Proc. 53:p. 53. |
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MSU catalog number: SB 611 .S6 v.52 |
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