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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2001jou906.pdf
Last checked: 09/29/2008
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| Publication Type:
| Refereed |
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| Author(s): | Rossi, F. S. |
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| Author Affiliation: | Department of Horticulture, Cornell University, Ithaca, NY |
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| Title: | Annual bluegrass population dynamics in response to growth regulators and herbicides |
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| Section: | Turfgrass management
Other records with the "Turfgrass management" Section
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| Meeting Info.: | Toronto, Ontario, Canada: July 2001 |
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| Source: | International Turfgrass Society Research Journal. Vol. 9, No. Part 2, 2001, p. 906-909. |
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| Publishing Information: | Oakville, Ontario, Canada: International Turfgrass Society |
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| # of Pages: | 4 |
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| Keywords: | TIC Keywords: Population dynamics; Growth regulators; Herbicides; Prodiamine; Ethofumesate; Trinexapac-ethyl; Lolium perenne; Poa annua control; Herbicide combinations; Visual evaluation; Poa annua; Mixtures
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| Abstract/Contents: | "Annual bluegrasses [Poa annua ssp. reptans (Hausskn.) Timm. and Poa annua spp. annua (L.) Timm. []] are invasive species of disturbed landscapes. Programs designed to reduce existing populations and prevent further invasion have produced inconsistent results. A study was conducted to investigate the influence of herbicide and growth regulator programs on a golf course fairway population of annual bluegrass in 1996-1999. Applications of prodiamine, ethofumesate and a trinexapac-ethyl were applied alone and in a factorial combination to a mixed stand of perennial ryegrass (Lolium perenne L.) and annual bluegrass. All treatments significantly reduced annual bluegrass populations when compared to control plots. The individual herbicide treatments reduced annual bluegrass populations 30 to 40% over the three year period. Prodiamine applied annually in late August, to coincide with the expected flush of annual bluegrass seed germination, followed by three successive applications of ethofumesate reduced populations over 50%. The lack of irrigation water in the fairway possibly selects for the winter annual biotype known to be more susceptible to herbicide treatment. Annual bluegrass population reductions with trinexapac-ethyl applied alone or in combination with herbicides did not exceed 10% throughout the study. In fact, a potential antagonistic effect on the herbicide action was observed with trinexapac-ethyl, possibly the result of prestress conditioning of annual bluegrass. A reduction in turfgrass quality was observed in 1998 with ethofumesate applied alone or in combination with prodiamine as compared to control plots. However, trinexapac-ethyl improved turf quality when applied in a program with ethofumesate. This research demonstrates the benefit of herbicide combinations for annual bluegrass reduction in golf turf fairways and potential antagonism by trinexapac-ethyl." |
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| Language: | English |
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| References: | 24 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Rossi, F. S. 2001. Annual bluegrass population dynamics in response to growth regulators and herbicides. Int. Turfgrass Soc. Res. J. 9(Part 2):p. 906-909. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2001jou906.pdf
Last checked: 09/29/2008
Requires: PDF Reader |
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MSU catalog number: SB 433 .I52 v. 9 |
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