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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=183
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Breeden, G. K.;
McElroy, J. S. |
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| Author Affiliation: | University of Tennessee |
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| Title: | Yellow nutsedge (Cyperus esculentus) and false-green kyllinga (Kyllinga gracillima) control with flazasulfuron |
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| Section: | Weed management in turfgrass
Other records with the "Weed management in turfgrass" Section
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| Meeting Info.: | Charlotte, North Carolina: January 24-26, 2005 |
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| Source: | Proceedings of the 58th Annual Meeting of the Southern Weed Science Society. Vol. 58, 2005, p. 108. |
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| Publishing Information: | Champaign, Illinois: Southern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Cyperus esculentus; Flazasulfuron; Herbicide evaluation; Kyllinga gracillima; Weed control
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| Abstract/Contents: | "Yellow nutsedge (Cyperus esculentus) and false-green kyllinga (Kyllinga gracillima) [Cyperaceae] are troublesome weeds for turfgrass managers in Tennessee and many other states. Both species are found throughout the Southeastern U.S. and predominately found in above average soil moisture conditions. The sulfonylurea herbicide flazasulfuron has been reported to provide control of Cyperus spp. and Kyllinga spp. Field research was initiated in 2004 to evaluate flazasulfuron as a control option for yellow nutsedge and false-green kyllinga in bermudagrass (Cynodon spp.) turf compared to standard treatments. Research was conducted in Knoxville (yellow nutsedge) and Loudon (false-green kyllinga), TN. The experiment was replicated 4 times in a randomized complete block design. Experimental units were 5 by 10 feet. Treatments included in this research were flazasulfuron (0.125, 0.25, 0.375, and 0.75 oz ai/a), trifloxysulfuron (0.42 oz ai/a), halosulfuron (1.0 oz ai/a), and MSMA (32 oz ai/a) + imazaquin (8.0 oz ai/a). Herbicides were applied in a water carrier volume of 30 GPA with a CO2 pressurized sprayer. Weed control and turf injury were evaluated visually utilizing a 0 (no weed control or turf injury) to 100 (complete control of all weeds or turf) % scale. No bermudagrass injury was observed at anytime by any herbicide treatment. Flazasulfuron at 0.375 and 0.75 oz ai/a, trifloxysulfuron, and MSMA + imazaquin controlled yellow nutsedge >= 86% at 2 weeks after application (WAA). Control of yellow nutsedge was ? 80% for all other treatments at 2 WAA. Flazasulfuron at 0.75 oz ai/a, trifloxysulfuron, halosulfuron, and MSMA + imazaquin controlled yellow nutsedge >= 93% at 4 WAA. Control for all other treatments was <= 80% at 4 WAA. Trifloxysulfuron and MSMA + imazaquin controlled yellow nutsedge >= 95% at 6 WAA. While flazasulfuron at 0.75 oz ai/a controlled yellow nutsedge 73% at this rating date. All other treatments controlled yellow nutsedge <= 60% at 6 WAA. Flazasulfuron at 0.75 oz ai/a and MSMA + imazaquin controlled false-green kyllinga >= 91% at 2 WAA. All other treatments controlled false-green kyllinga <= 72% at 2 WAA. All treatments controlled false-green kyllinga ? 95% at 4 WAA except halosulfuron. Halosulfuron controlled false-green kyllinga 79% at this rating date. However, ? 93% control of false-green kyllinga was observed at 6 WAA with all treatments. Flazasulfuron reached the 90% control level faster than trifloxysulfuron and halosulfuron at 2 WAA. However, the other sulfonylureas controlled these species equal or better than flazasulfuron." |
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| Language: | English |
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| References: | 0 |
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| Note: | "The changing world of weed science"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Breeden, G. K., and J. S. McElroy. 2005. Yellow nutsedge (Cyperus esculentus) and false-green kyllinga (Kyllinga gracillima) control with flazasulfuron. South. Weed Sci. Soc. Proc. 58:p. 108. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2005 Proceedings-SWSS.pdf#page=183
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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