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| Web URL(s): | https://archive.lib.msu.edu/tic/its/articles/2009jou207.pdf
Last checked: 10/18/2011
Requires: PDF Reader |
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| Publication Type:
| Refereed |
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| Author(s): | Inguagiato, John C.;
Murphy, James A.;
Clarke, Bruce B. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University, New Brunswick, New Jersey |
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| Title: | Anthracnose of annual bluegrass putting green turf influenced by trinexapac-ethyl application interval and rate |
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| Section: | Diseases (plant pathology)
Other records with the "Diseases (plant pathology)" Section
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| Meeting Info.: | Santiago, Chile: July 26-30 2009 |
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| Source: | International Turfgrass Society Research Journal. Vol. 11, No. Part 1, 2009, p. 207-218. |
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| Publishing Information: | Madison, WI: International Turfgrass Society |
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| # of Pages: | 12 |
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| Keywords: | TIC Keywords: Anthracnose; Poa annua; Golf greens; Trinexapac-ethyl; Application rates; Growth regulators; Quality; Disease severity; Seedheads
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| Abstract/Contents: | "Anthracnose (Colletotrichum cereale sensu lato Crouch, Clarke, and Hillman [formerly C. graminicola (Ces.) G.W. Wils.]) incidence and severity of annual bluegrass [Poa annua L. f. reptans (Hausskn) T. Koyama] putting greens has become increasingly devastating over the past 15 years. The effect of trinexapac-ethyl (TE) application interval (14 and 7 d) and rate (none, 0.04, 0.05 and 0.08 kg a.i. ha-1) on anthracnose severity was assessed on annual bluegrass mowed at 3.2 mm from 2005 to 2007. Trinexapac-ethyl did not enhance disease severity regardless of application rate or interval, and TE had no or little effect on the disease in 2005 and 2007 while disease severity was reduced by TE in 2006. A reduction of 11 to 27% disease severity was observed in TE treatments when compared to untreated turf during 2006. Specifically, a shorter application interval (7 vs. 14 d) and greater TE rate (0.05 vs. 0.08 kg a.i. ha-1) resulted in less anthracnose in 2006 when disease pressure was high. Disease severity declined linearly with increasing TE rate when applied every 7 d during 2006. Trinexapac-ethyl treatment increased seedheads 8 to 21% compared to untreated turf during the 3-yr trial. Trinexapac-ethyl applied every 7 d at 0.08 kg a.i. ha-1 initially reduced turf quality due to moderate phytotoxicity and increased seedheads compared to the same rate applied every 14 d early in the season during 2006 and 2007. However, TE treatments improved turf quality once seedheads subsided and disease severity increased later on in 2005 and 2006." |
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| Language: | English |
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| References: | 37 |
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| Note: | Partial Reprint appears in Carolinas Green, November/December 2009, p. 18
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Inguagiato, J. C., J. A. Murphy, and B. B. Clarke. 2009. Anthracnose of annual bluegrass putting green turf influenced by trinexapac-ethyl application interval and rate. Int. Turfgrass Soc. Res. J. 11(Part 1):p. 207-218. |
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| Web URL(s):
https://archive.lib.msu.edu/tic/its/articles/2009jou207.pdf
Last checked: 10/18/2011
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MSU catalog number: b2548899 |
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