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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=295
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Venner, K. A.;
Spak, D.;
Askew, S. |
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| Author Affiliation: | Venner and Askew: Virginia Tech, Blacksburg, VA; Spak: Bayer Environmental Science, Clayton, NC |
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| Title: | Sequential indaziflam applications for smooth crabgrass control in bermudagras lawns |
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| Section: | Graduate student contest
Other records with the "Graduate student contest" Section
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| Meeting Info.: | Charleston, South Carolina: January 23-25, 2012 |
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| Source: | 2012 Proceedings, Southern Weed Science Society. Vol. 65, 2012, p. 223. |
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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: Application timing; Crabgrass control; Cynodon; Digitaria ischaemum; Flowables; Herbicide efficacy; Herbicide evaluation; Indaziflam
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| Trade Names: | Specticle |
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| Abstract/Contents: | "Indaziflam (Specticle, Bayer) was registered by US EPA in July 2010 and subsequently sold in spring 2011 primarily as a preemergence herbicide for annual bluegrass, crabgrass, and goosegrass control in warm-season turf. Currently, indaziflam is available as Specticle 20WP, and Specticle Flo, a new formulation, is under evaluation. Indaziflam has primarily been researched and sold as a herbicide for golf course uses but its registration allows use on many turf sites, including lawns. Research is needed to evaluate indaziflam in lawn situations. Two field trials were conducted to evaluate the effect of the new flowable formulation of indaziflam applied once, twice or three times at various rates on crabgrass control and potential bermudagrass injury. Trials were initiated on March 3, 2011 one month before typical crabgrass emergence at the Glade Road Research Center (GRRC) and Turfgrass Research Center (TRC) in Blacksburg, Virginia. Application regimes were: PRE only at 16, 24, 32, 49, and g ai ha-1; PRE + 45 days at 16, 24, and 32 g ai ha-1 at each application; and PRE + 45 and 90 DAIT at 16, 24, and 32 g ai ha-1 initially and followed by 16 g ai ha-1 applied two more times. Applications of the flowable indaziflam product were compared to pendimethalin (Pendulum Aquacap) applied PRE + 45 DAIT at 1650 g ai ha-1. 'Yukon' bermudagrass was maintained at 3.8 cm throughout the study. Bermudagrass was not injured by any treatment at either site. Crabgrass cover differed between locations. At GRRC crabgrass cover was never more than 1%, therefore crabgrass control will not be discussed for this site. At TRC in June, July, and August, respectively, crabgrass cover was 20, 50, and 70% in nontreated plots. When assessed on June 16, indaziflam applied once on March 13 controlled smooth crabgrass 45 to 100% as rate increased from 16 to 65 g ai ha-1, respectively at TRC. Indaziflam applied two or three times controlled crabgrass 98 to 100% regardless of rate. At TRC, single PRE treatments of indaziflam controlled crabgrass 65, 74, 88, 91, and 93% when applied at 16, 24, 32, 49, and 65 g ai ha-1, respectively, while pendimethalin applied once controlled smooth crabgrass 43%. These results are similar to past studies on golf fairways and roughs and agree with the Specticle 20WP label that lists the rate range for crabgrass control at between 35 and 70 g ai ha-1. All programs that included more than one treatment of indaziflam controlled smooth crabgrass 95% or greater. The flowable indaziflam formulation appears to control smooth crabgrass at rates similar to what can be expected based on past experience with the wettable powder." |
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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):
Venner, K. A., D. Spak, and S. Askew. 2012. Sequential indaziflam applications for smooth crabgrass control in bermudagras lawns. South. Weed Sci. Soc. Proc. 65:p. 223. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2012 Proceedings-SWSS.pdf#page=295
Last checked: 08/07/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: b2207931 |
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