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| Web URL(s): | http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=44
Last checked: 11/28/2007
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Inguagiato, J. C.;
Murphy, J. A.;
Clarke, B. B. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
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| Title: | Effect of chemical growth regulation strategies on anthracnose severity of annual bluegrass putting green turf |
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| Section: | Poster presentations
Other records with the "Poster presentations" Section
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| Meeting Info.: | Cook College, Rutgers, NJ: January 11-12, 2007 |
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| Source: | Proceedings of the Sixteenth Annual Rutgers Turfgrass Symposium. Vol. 16, 2007, p. 43. |
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| Publishing Information: | New Brunswick, NJ: Center for Turfgrass Science, Cook College, Rutgers, The State University of New Jersey |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Plant growth regulators; Anthracnose; Colletotrichum graminicola; Disease severity; Trinexapac-ethyl; Ethephon; Mefluidide; Poa annua; Golf greens
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| Abstract/Contents: | "Chemical growth regulation on golf putting greens has become commonplace in recent years. Turf managers are currently using these materials at increased rates and decreased intervals; and the effects on anthracnose, caused by Colletotrichum cereale, are unknown. Nineteen treatments were arranged in a randomized complete block design with four replications. Trinexapac-ethyl (TE) was applied at various rates (0.3-, 0.4-, and 0.6-L ha-1) and intervals (7-, 14-d) April to September 2005 and 2006. Mefluidide (2.2-L ha-1) or ethephon (15.9-L ha-1) was applied 6 and 20 April 2005 or 31 March and 12 April 2006 both without and with triexapac-ethyl (0.4-L ha-1) applied at two intervals (7- or 14-d) throughout the season. Anthracnose incidence declined linearly with increased TE rate in 2006, but not in 2005. Anthracnose damage was reduced 18-30% on 3 and 21 July 2006 by TE applied every 7-d compared to 14-d (mean of two rates). Interval of TE did not significantly affect disease in 2005. Mefluidide (ME), without and with TE, reduced disease 51% on 2 July 2005, and 14-39% in 2006. However, ME alone had 38-67% and 19-61% greater disease than the combinations of ME + TE in 2005 and 2006, respectively. No difference was observed between TE and ME + TE in either year. Ethephon (ET), with and without TE, had 30-51% and 24-78% less disease than untreated turf in 2005 and 2006, respectively. Ethephon alone was not different from combinations of ET+ TE over both years. Trinexapac-ethyl was 45% less effective than ET + TE over both years. Trinexapac-ethyl was 45% less effective than ET + TE at reducing anthracnose on 15 July 2005, and 52% less effective on 3 July 2006. Ethephon, without and with TE, had 15-73% less disease in 2006 than ME without and with TE. There is no difference between ET and ME in 2005." |
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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):
Inguagiato, J. C., J. A. Murphy, and B. B. Clarke. 2007. Effect of chemical growth regulation strategies on anthracnose severity of annual bluegrass putting green turf. Proc. Annu. Rutgers Turfgrass Symp. 16:p. 43. |
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| Web URL(s):
http://turf.rutgers.edu/research/abstracts/symposium2007.pdf#page=44
Last checked: 11/28/2007
Requires: PDF Reader |
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MSU catalog number: SB 433 .R88 |
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