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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2007/T044.pdf
Last checked: 11/14/2016
Requires: PDF Reader |
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| Publication Type:
| Report |
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| Author(s): | Martínez-Espinoza, A. D. |
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| Author Affiliation: | Department of Plant Pathology, University of Georgia, Griffin, Georgia |
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| Title: | Evaluation of fungicides for control of brown patch of tall fescue, 2006 |
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| Source: | PDMR: Plant Disease Management Reports. Vol. 1, 2007, p. T044. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Fungicides; Fungus control; Fungicide trials; Brown patch; Festuca arundinacea; Disease severity; Lawn turf; Fungicide evaluation
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| Cultivar Names: | Kentucky 31 |
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| Abstract/Contents: | "A fungicide trial was conducted on a 4-year-old sward of tall fescue 'Kentucky 31' grown on a clay loam soil (pH 5.8) at the Georgia Experiment Station, Griffin, GA. Fertilizer treatments consisted of 1.0 lb nitrogen (Lesco 24-4-10) per 1000 sq.ft applied on 4 Jun and 10 Jul. The turfgrass was maintained at a height of 3-in. by mowing once a week. Turfgrass cultural practices were similar to those prescribed for maintenance of tall fescue lawns in Georgia. Treatments were arranged as plots (4.5 ft x 4.5 ft) in a randomized complete block design with four replications. Initial applications were applied on 9 Jun in 2.5 gal water per 1000 sq ft with a hand held, CO2- pressured boom sprayer at 30 psi using XR TeeJet 8002VS nozzles. Subsequent applications were made at 28-day intervals until 4 Aug. Turf was inoculated 24 hr after the initial fungicide applications by hand-dispersal of grain infested with R. Solani into the foliar canopy. The plots received approximately 0.1-in of irrigation water 3 times daily at 11:00, 15:00, and 19:00 hr to ensure nightly foliar wetness for infection. This irrigation regime was in place for 10 days. Normal daily irrigation of 0.24-in. was applied daily at 3:00 hr after these initial 10 days. Visual estimates of disease severity were made using the Horsfall-Barratt rating scale and translated to percent. Values were subjected to analysis of variance and means were statistically separated using the Scott-Knott cluster analysis procedure (α = 0.05). R. Solani infection progressed rapidly, reaching a peak of >56% disease severity by 21 Aug. All treatments had a significant disease suppressive effect for the duration of the study. By 21 Aug SP 102000014874 25SC (2.0 oz); Nativo 30SC (0.5 oz); Nativo 30SC (1.0 oz); Armada 50WP (0.6 fl oz); Armada 50WP (1.2 fl oz) and Heritage 50WDG (0.3 oz) had equivalent disease suppressive effects, while SP 102000014874 25SC (1.0 oz) provided control less than the other treatments, although control was statistically different from the unsprayed check." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only! |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Martínez-Espinoza, A. D. 2007. Evaluation of fungicides for control of brown patch of tall fescue, 2006. PDMR: Plant Dis. Manage. Rep. 1:p. T044. |
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Last checked: 11/14/2016
Requires: PDF Reader |
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