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Web URL(s): | http://apwss.org/documents/23rd%20APWSS%20Conference%20Proceedings Vol 2.pdf#page=175 Last checked: 04/10/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website Notes: Item is within a single large file |
Publication Type:
| Proceedings |
Author(s): | Yelverton, Fred H.;
Gannon, Travis W. |
Title: | Selective exposure and efficacy of sulfosulfuron, sulfentrazone, and trifloxysulfuron for sedge control in established turfgrasses |
Meeting Info.: | Cairns, Queensland, Australia: September 26-29, 2011 |
Source: | 23rd Asian-Pacific Weed Science Society ConferenceProceedings: Weed Management in a Changing World. Vol. 2, 2011, p. 175-181. |
Publishing Information: | Asian-Pacific Weed Science Society |
# of Pages: | 7 |
Keywords: | TIC Keywords: Cyperus rotundus; Herbicide evaluation; Kyllinga gracillima; Postemergence weed control; Sulfentrazone; Sulfosulfuron; Trifloxysulfuron
|
Abstract/Contents: | "Purple nutsedge (Cyperus rotundus), yellow nutsedge (Cyperus esculentus ) and false-green kyllinga (Kyllinga gracillima) are common and troublesome perennial sedge species (Cyperaceae) in turfgrass systems. Although not as widely distributed as other Cyperus species, purple nutsedge is a rapidly spreading perennial and has been described as the worlds worst weed because it is a serious competitor with more crops in more countries than any other weed. Yellow nutsedge has been described as one of the worlds worst weeds and has a greater geographic distribution than purple nutsedge. False-green kyllinga is an aromatic rhizomatous mat-forming perennial, which may tolerate golf course putting green mowing height. Unlike purple nutsedge and false-green kyllinga, yellow nutsedge does not tolerate lower mowing heights. Field experiments were conducted to evaluate sulfentrazone, sulfosulfuron and trifloxysulfuron for postemergent purple nutsedge and false-green kyllinga control. Additionally, greenhouse experiments were conducted to evaluate the effect of selective herbicide placement (soil only, foliage only, or soil + foliage) on sedge shoot number, shoot weight and root weight. Evaluated treatments did not cause objectionable bermudagrass (Cynodon dactylon) injury at any time. Sulfosulfuron and trifloxysulfuron provided similar levels of purple nutsedge control (> 60%) while sulfentrazone provided < 30% control. Sulfosulfuron and trifloxysulfuron provided excellent false-green kyllinga control (> 85%), while sulfentrazone provided < 60% control. These results also indicate a sequential application applied 6 WAIT provides the highest level of purple nutsedge and false-green kyllinga control. Further, soil- and soil + foliar-applied herbicides provided the highest level of growth suppression, indicating herbicide-soil contact is required for optimum sedge control. These data confirm sulfosulfuron or trifloxysulfuron offer acceptable postemergent perennial sedge control in tolerant warm-season turfgrasses." |
Language: | English |
References: | 33 |
Note: | Tables |
| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete): Yelverton, F. H., and T. W. Gannon. 2011. Selective exposure and efficacy of sulfosulfuron, sulfentrazone, and trifloxysulfuron for sedge control in established turfgrasses. p. 175-181. In 23rd Asian-Pacific Weed Science Society ConferenceProceedings: Weed Management in a Changing World. Cairns, Queensland, Australia: September 26-29, 2011. Asian-Pacific Weed Science Society. |
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| Web URL(s): http://apwss.org/documents/23rd%20APWSS%20Conference%20Proceedings Vol 2.pdf#page=175 Last checked: 04/10/2014 Requires: PDF Reader Access conditions: Item is within a limited-access website Notes: Item is within a single large file |
| MSU catalog number: SB 610 .A8326 |
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