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| Web URL(s): | http://newss.org/proceedings/proceedings_2009.pdf#page=61
Last checked: 07/17/2013
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Author(s): | Cutulle, M. A.;
Derr, J. F.;
Horvath, B. J. |
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| Author Affiliation: | Virginia Tech, Virginia Beach |
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| Title: | Impact of tall fescue and hybrid bluegrass mixtures on weed encroachment and turf quality |
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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. 46. |
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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: Digitaria ciliaris; Festuca arundinacea; Lamium amplexicaule; Lamium purpureum; Poa arachnifera; Poa pratensis; Poa pratensis X Poa arachnifera; Rhizoctonia blight; Rhizoctonia solani; Stellaria media; Trifolium repens
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| Cultivar Names: | Greenkeeper WAF; Thermal Blue Blaze |
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| Abstract/Contents: | "Tall Fescue (Festuca arundinacea Schreb.) is a common cool-season turfgrass utilized in the transition zone due to its ability to establish quickly and tolerate heat and drought. However, it is susceptible to brown patch (Rhizoctonia solani), especially in the hot, humid summers of the transition zone. Hybrid bluegrass, a cross between Poa pratenis and Poa arachnifera, is reported to be heat tolerant and thus may perform well in the transition zone. Hybrid bluegrass is resistant to brown patch, but establishes slowly, which may subject it to weed infestations. Combinations of tall fescue and hybrid bluegrass may have lower overall disease infestations, therefore resulting in lower weed densities than monocultures of either turf species. Optimizing seeding rates should be important when establishing such combinations. In the fall of 2006, field plots were seeded with 'Greenkeeper' tall fescue at 293 kg/ha, 'Thermal Blue Blaze' hybrid bluegrass at 110 kg/ha, tall fescue at 264 kg/ha plus hybrid bluegrass at 29 kg/ha, or tall fescue at 146 kg/ha plus hybrid bluegrass at 55 kg/ha. No preemergence herbicides were applied to this trial. Tall fescue germinated quicker than hybrid bluegrass, achieving 70% cover at one month after seeding, while hybrid bluegrass cover was only 40%. At one month after seeding, percent cover by purple deadnettle (Lamium purpureum L.), common chickweed (Stellaria media L.), and henbit (Lamium amplexicaule L.) were greater in hybrid bluegrass alone compared to tall fescue alone. Weed cover in the combination seeding containing tall fescue at 264 kg/ha plus hybrid bluegrass at 29 kg/ha was similar to that seen in tall fescue alone. Weed cover in the combination seeding at the lower rate of tall fescue and the higher rate of hybrid bluegrass was intermediate between the two monocultures. Monoculture stands of hybrid bluegrass had the highest cover of southern crabgrass [Digitaria ciliaris (Retz.) Koel.] in the summers of 2007 and 2008, and the highest cover of white clover (Trifolium repens L.) in the spring of 2008. Weed cover in the combination seeding treatments were similar to that seen in monocultures of tall fescue. Brown patch infestations in the summer of 2008 were highest in the monoculture of tall fescue. Tiller counts taken in February of 2008 indicated an approximate 1:1 ratio of the two turf species when tall fescue was seeded at 146 kg/ha with hybrid bluegrass at 55 kg/ha. At the higher seeding rate of tall fescue with the lower seeding rate of hybrid bluegrass, the ratio was approximately 4 tillers of tall fescue to 1 tiller of hybrid bluegrass. Without additional inputs, monocultures of hybrid bluegrass cannot outcompete annual weeds. Combinations of hybrid bluegrass with tall fescue result in lower weed density compared to monocultures of hybrid bluegrass, with lower brown patch incidence compared to monocultures of tall fescue." |
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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):
Cutulle, M. A., J. F. Derr, and B. J. Horvath. 2009. Impact of tall fescue and hybrid bluegrass mixtures on weed encroachment and turf quality. Proc. Annu. Meet. Northeast. Weed Sci. Soc. 63:p. 46. |
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| Web URL(s):
http://newss.org/proceedings/proceedings_2009.pdf#page=61
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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