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| Publication Type:
| Report |
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| Author(s): | Vrabel, T. E.;
Willey, M. A. |
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| Author Affiliation: | Rhone-Poulenc AG Company, Research Triangle Park, NC |
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| Title: | Weed control during bermudagrass establishment from sprigs |
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| Section: | Weed control in turf, pasture, and rangeland
Other records with the "Weed control in turf, pasture, and rangeland" Section
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| Meeting Info.: | Atlanta, Georgia: January 15-17, 1990 |
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| Source: | Proceedings: Southern Weed Science Society. Vol. 43, 1990, p. 153. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Vegetative establishment through sprigging of improved bermudagrass (Cynodon dactylon L.) in golf course fairways enables excellent, uniform turf establishment in a short period of time. The sprigging process also provides excellent conditions for the germination and establishment of annual grassy weeds such as crabgrass (Digitaria sp.) and goosegrass (Eleusine indica L.) that can reduce turf quality and delay course opening. Field studies were conducted in 1988 and 1989 at the Pinehurst Resort and Country Club in Pinehurst, North Carolina, to evaluate the efficacy and turf safety of granular and wettable powder formulations of oxadiazon (CHIPCO® RONSTAR®) applied either immediately before or after sprigging of Tifway 419 bermudagrass. Common bermudagrass turf on the test site was treated with 4.2 kg ae/ha of glyphosate (Roundup®) 3 weeks prior to sprigging. During the week preceding sprigging, the site was verticut, dethatched, and core aerified four times, and all loose debris was removed. Sprigs were slit planted on 10 cm centers using commercial equipment. Herbicides were watered immediately after application with one cm of irrigation. The site was irrigated during the period of bermudagrass establishment and maintained at field capacity. Oxadiazon 50 WP applied at 3.4 kg ai/ha either immediately before or after bermudagrass sprigging provided excellent control of goosegrass and smooth crabgrass (Digitaria ischaemum Schreb.). Oxadiazon 2G at 3.4 kg ai/ha also provided excellent control of these weeds with pre-sprigging application but provided only adequate goosegrass control when applied post-sprigging. Split application of either oxadiazon formulation consisting of 1.7 kg ai/ha, applied pre-sprigging, followed by 1.7 kg ai/ha, post-sprigging, provided excellent control of both weed species. No detrimental effects on root quality, turf quality, or turf density were observed with any of the oxadiazon applications. A pre-sprigging application of 2.2 kg ai/ha of oryzalin (Surflan®) seriously decreased root quality, turf quality, and turf density. Serious injury from this treatment was still evident at five weeks after application." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Risk/benefit: A way of life"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Vrabel, T. E., and M. A. Willey. 1990. Weed control during bermudagrass establishment from sprigs. South. Weed Sci. Soc. Proc. 43:p. 153. |
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