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| Web URL(s): | https://turf.rutgers.edu/research/abstracts/symposium2002.pdf#page=56
Last checked: 02/06/2017
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Notes: Item is within a single large file |
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| Publication Type:
| Report |
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| Content Type: | Abstract or Summary only |
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| Author(s): | Weibel, Eric;
Clarke, Bruce B. |
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| Author Affiliation: | Department of Plant Biology and Pathology, Rutgers University |
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| Title: | Evaluation of water volume and nozzle type on the efficacy of trifloxystrobin and selected fungicides for the control of brown patch in colonial bentgrass |
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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 10-11, 2002 |
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| Source: | Proceedings of the Eleventh Annual Rutgers TurfgrassSymposium. 2002, p. 55. |
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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: Agrostis tenuis; Disease control; Fungicide application; Fungicide efficacy; Fungicide evaluation; Nozzles; Rhizoctonia blight; Trifloxystrobin
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| Trade Names: | Compass 50 WG |
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| Abstract/Contents: | "Trifloxystrobin (Compass 50WG) is a new fungicide recently marketed for the control of turfgrass diseases. It belongs to a new class of fungicides called strobilurins that are effective at extremely low rates (i.e., 2.1 to 5.7 g a.i. 90 m-2) and are considered by the EPA to represent a "reduced risk" to the environment. Although trifloxystrobin is effective against several important diseases of turf, little is known about the impact of application parameters on fungicide efficacy. Moreover, with the tendency of turfgrass managers to reduce the volume of water used to apply funngicides, and to employ a variety of application nozzles, it is important to ascertain the influence that these factors may have on the efficacy of this new fungicide chemistry. To do so, a study was conducted from 1999 to 2001 on colonial bentgrass cultivar 'SR7100' maintained at 0.95 cm at the Turf Research Farm in North Brunswick, NJ. The efficacy of trifloxystrobin, azoxystrobin (Heritage 50WG), and chlorothalonil (Daconil WeatherStik 6F) were evaluated for the control of brown patch (Rhizoctonia solani), one of the most common and destructive diseases of golf course turf during the summer months. Trifloxystrobin (2.1 g a.i. 90 m-2) was incorporated in a factorial design using 1.9, 3.8, 7.6, 15.2, and 30.4 L H2O 90 m-2 and three nozzle types: flat fan (TeeJet 8003VS), rain drop (RA-10), and turbo flood jet (TF-VS5). Azoxystrobin (2.8 g a.i. 90 m-2) and chlorothalonil (127.7 g a.i. 90 m-2) were evaluated at the same water volumes, using a flat fan nozzle only. All fungicides were applied at 14 day intervals in 1999 and 21 day intervals in 2000 and 2001. Throughout the three year study, the lowest water volume (1.9 L H2O 90 m-2) generally provided the least effective disease control. For each year, there were significant nozzle by water volume interactions. In 1999 for example, when applied with the flat fan nozzle, all fungicides were most efficacious at the 7.6, 15.2, and 30.4 L H2O 90 m-2 volumes. However, when using the rain drop nozzle, optimum disease control for trifloxystrobin was afforded at the 3.8, 7.6, and 15.2 L H2O 90 m-2 water volumes. In 2000, when nozzle type was a significant main factor, the rain drop nozzle did not provide as effective control of brown patch as either the flat fan or turbo flood jet. In the final year of the study, applying chlorothalonil at the highest water volume (30.4 L H2O 90 m-2) reduced disease control in late August and early September. During the study, azoxystrobin was generally more effective in controlling brown patch than either trifloxystrobin or chlorothalonil." |
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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):
Weibel, E., and B. B. Clarke. 2002. Evaluation of water volume and nozzle type on the efficacy of trifloxystrobin and selected fungicides for the control of brown patch in colonial bentgrass. Proc. Annu. Rutgers Turfgrass Symp. p. 55. |
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| Web URL(s):
https://turf.rutgers.edu/research/abstracts/symposium2002.pdf#page=56
Last checked: 02/06/2017
Requires: PDF Reader
Notes: Item is within a single large file |
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MSU catalog number: SB 433 .R88 |
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