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| Web URL(s): | http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=174
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): | Ricker, D. B.;
Willis, J. B.;
Askew, S. D. |
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| Author Affiliation: | Virginia Tech, Blacksburg, VA |
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| Title: | Annual bluegrass control programs during perennial ryegrass overseeding |
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| Section: | Weed management in turf grass
Other records with the "Weed management in turf grass" Section
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| Meeting Info.: | San Antonio, Texas: January 23-25, 2006 |
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| Source: | Proceedings: Southern Weed Science Society 59th Annual Meeting. Vol. 59, 2006, p. 101. |
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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: Herbicide efficacy; Herbicide evaluation; Herbicide program; Lolium perenne; Poa annua control; Transitional overseeding
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| Abstract/Contents: | "Changing seasons in the transition zone force bermudagrass turf into winter dormancy. Winter overseeding of perennial ryegrass (Lolium perenne L.) into dormant bermudagrass turf provides a year-round green playing surface. Unfortunately, management practices creating an adequate seed bed and seeding timing enhance annual bluegrass (Poa annua) germination. Temperatures during late fall seeding are ideal for a flush of annual bluegrass growth prior to overseeded turf establishment. Developing annual bluegrass control programs during winter overseeding reduces the need for further herbicide treatments to control potential annual bluegrass infestations. Two separate field trials in Blacksburg, VA were conducted in the fall of 2005 to evaluate the most effective annual bluegrass control program during overseeding. Trial 1 and 2 were conducted on vertically mowed Riviera bermudagrass turf overseeded with perennial ryegrass at 280 kg/ha on September 29, 2005 and August 22, 2005, respectively. Trial 1 was a RCBD with 5 treatments. Treatments included trifloxysulfuron at 0.02 kg/ha plus prodiamine at 1.17 L/ha applied on August 05, 2005 followed by prodiamine at 1.17 L/ha, 6 months after treatment (MAT) or not, trifloxysulfuron at 0.02 kg/ha plus prodiamine at 2.34 L/ha treated on September 29, 2005, a nontreated/no overseed, and a control was also included. Trial 2 was a RCBD with 9 treatments and 1 nontreated control. Treatments included trifloxysulfuron at 0.02 or 0.04 kg/ha and rimsulfuron at 0.14 kg/ha all applied 21, 14, or 10 days prior to overseed. Treatment dates were August 1st, 8th, and 15th of 2005, respectively. Visually estimated annual bluegrass control, perennial ryegrass cover, and perennial ryegrass injury were rated as a percentage 6 MAT for trial 1 and 7, 14, 21, 28, 56 days af ter treatment (DAT), and 6 MAT for trial 2. Trifloxysulfuron at 0.02 kg/ha plus prodiamine at 2.34 L/ha applied on September 29, 2005 controlled annual bluegrass 95% 6 WAT in trial 1. Trifloxysulfuron at 0.04 kg/ha 10 days prior to overseeding controlled annual bluegrass 88% 6 MAT in trial 2. No perennial ryegrass injury occurred in trial 1 but injury between 10 and 13% occurred with all treatments 21 and 14 days prior to overseeding in trial 2. Perennial ryegrass cover was not affected for both trials. In trial 1, all three treatments were effective for annual bluegrass control during winter overseeding. In trial 2, trifloxysulfuron at 0.04 kg/ha 10 days prior to overseeding controlled annual bluegrass better than all other treatments. Further spring evaluations are required to assess annual bluegrass control during the spring growth season." |
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| Language: | English |
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| References: | 0 |
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| Note: | "Vision for the future"
This item is an abstract only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ricker, D. B., J. B. Willis, and S. D. Askew. 2006. Annual bluegrass control programs during perennial ryegrass overseeding. South. Weed Sci. Soc. Proc. 59:p. 101. |
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| Web URL(s):
http://www.swss.ws/wp-content/uploads/docs/2006 Proceedings-SWSS.pdf#page=174
Last checked: 07/18/2013
Requires: PDF Reader
Notes: Item is within a single large file |
| 
MSU catalog number: b2207931 |
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