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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Gannon, T. W.;
Yelverton, F. H.;
Warren, L. S. |
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| Author Affiliation: | Department of Crop Science, North Carolina State University, Raleigh, North Carolina |
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| Title: | Perennial ryegrass tolerance and annual bluegrass control in overseeded bermudagrass |
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| Section: | Weed management in turf, pasture, and rangeland
Other records with the "Weed management in turf, pasture, and rangeland" Section
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| Meeting Info.: | 55th Annual Meeting, Atlanta, GA: January 28-30, 2002 |
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| Source: | Southern Weed Science Society Proceedings. Vol. 55, 2002, p. 58. |
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| Publishing Information: | Champaign, IL: Southern Weed Science Society. |
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| # of Pages: | 1 |
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| Abstract/Contents: | "Bermudagrass (Cynodon dactylon) is often overseeded in North Carolina to provide winter color and a uniform playing surface. Along with the advantages of overseeding come disadvantages including reduced weed control options leading to increased weed incidence. Annual bluegrass (Poa annua) is a specific example of a winter annual weed that becomes more difficult to control in overseeded areas. Annual bluegrass is a bunch type winter annual, yellow-green in color which contrasts with overseeded perennial ryegrass (Lolium perenne), making it undesirable in highly maintained turf areas. A field trial was initiated in the fall of 2000 to evaluate herbicides applied prior to planting at various intervals for annual bluegrass control and perennial ryegrass establishment. Another trial was initiatd in the fall of 2001 to measure perennial ryegrass establishment only. Treatments included various rates and timings of Balan (benefin), Barricade (prodiamine), Dimension (dithiopyr), Pendulum (pendimethalin), and Ronstar (oxadiazon). Treatments were conpared for annual bluegrass control and perennial ryegrass establishment and categorized based on data collected. Excellent treatments, or treatments providing greater that 90% control of annual bluegrass and did not reduce the perennial ryegrass establishment greater than 10% as compared to the nontreated, included Barricade applied at 0.5 lb ai/a 10 WBO (weeks before overseeding), Barricade at 0.38 and 0.5 lb ai/a 8 WBO, and a split application of Balan applied at 2.75 lb ai/a each at 6 WBO and 6 WAO (weeks after overseeding). Good treatments, providing 80-89% of annual bluegrass and reducing perennial ryegrass establishment between 11 and 20%, included Barricade 0.75 lb ai/a 10 WBO, Barricade applied in a split application 0.38 lb ai/a each at 8 WBO and 4 WAO, and Balan 2.75 lb ai/a and Dimension 0.5 lb ai/a applied 6 WBO. Treatments evaluated with limited success included Dimension 0.5 lb ai/a, Pendulum 2 lb ai/a, and Ronstar 2 lb ai/a all applied 8 WBO." |
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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):
Gannon, T. W., F. H. Yelverton, and L. S. Warren. 2002. Perennial ryegrass tolerance and annual bluegrass control in overseeded bermudagrass. South. Weed Sci. Soc. Proc. 55:p. 58. |
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MSU catalog number: SB 611 .S6 v.54 |
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