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| Web URL(s): | http://newss.org/proceedings/proceedings_2009.pdf#page=56
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Goddard, M. J.;
Mittlesteadt, T. L.;
Askew, S. D. |
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| Author Affiliation: | Virginia Tech, Blacksburg |
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| Title: | Annual bluegrass control in creeping bentgrass using amicarbazone |
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| Section: | Graduate student contest
Other records with the "Graduate student contest" Section
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| Meeting Info.: | Baltimore, Maryland: January 6-8, 2009 |
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| Source: | Proceedings of the Sixty-Third Annual Meeting of the Northeastern Weed Science Society. Vol. 63, 2009, p. 41. |
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| Publishing Information: | Baltimore, Maryland: Northeastern Weed Science Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Amicarbazone; Bispyribac-sodium; Herbicide evaluation; Poa annua control; Weed control
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| Abstract/Contents: | "Annual Bluegrass (Poa annua L.) is a common weed of creeping bentgrass (Agrostis stolonifera L.) turf. To date, there are few selective herbicide options for turfgrass managers to effectively control annual bluegrass infestations in creeping bentgrass. Amicarbazone is a herbicide under evaluation for use in many turfgrass weed control situations including annual bluegrass control. In other trials, amicarbazone has shown to effectively reduce annual bluegrass populations in bermudagrass. Field trials were established in the spring of 2008 to evaluate the effects of amicarbazone on annual bluegrass control. Trials were initiated at 2 locations on an L-93 and a Putter/Pencross creeping bentgrass fairway each maintained at 1.5 cm. in Blacksburg, VA. Treatments were arranged in a randomized complete block design with 4 replications and were applied on May 16 and May 19, 2008. These trials included 11 treatment options which evaluated amicarbazone at rates of 123, 196, and 245 g ai/ha plus a nonionic surfactant at 0.25% v/v applied once or with sequential applications 3 and 5 weeks after initial treatment (WAIT), compared to bispyribac-sodium (Velocity 80 SP) applied at 74 g ai/ha with a sequential application 2 WAIT. Trials were evaluated for control of annual bluegrass and creeping bentgrass injury and quality. Both trial sites resulted in good control of annual bluegrass in plots treated with amicarbazone. On the L-93 fairway, annual bluegrass control ranged from 65% following a single application at the 123 g ai/ha rate to 95% at the highest rates with sequential applications of amicarbazone, with sequential applications of Velocity controlling 69% of annual bluegrass. Sequential applications of amicarbazone improved annual bluegrass control at all rates and timings, but caused unacceptable injury (>30%) to plots receiving sequential applications with rates above 123 g ai/ha, 3 WAIT. Injury was not deemed unacceptable at any rating for the 123 g ai/ha rate regardless of sequential application. At the second location, greater annual bluegrass control was observed as well as increased injury to the bentgrass cultivars. It is believed that weaker bentgrass varieties and a lower managed stand of creeping bentgrass at this location attributed to this increase in turfgrass injury. This site has higher annual bluegrass populations and receives less irrigation than the L-93 site. Amicarbazone is an effective method of controlling annual bluegrass in creeping bentgrass. However, cultivar screens and further studies to evaluate rate responses are needed to determine a proper application of this herbicide." |
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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):
Goddard, M. J., T. L. Mittlesteadt, and S. D. Askew. 2009. Annual bluegrass control in creeping bentgrass using amicarbazone. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 63:p. 41. |
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| Web URL(s):
http://newss.org/proceedings/proceedings_2009.pdf#page=56
Last checked: 07/17/2013
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 610 .N62 |
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