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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2007/T046.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: | Control of brown patch of tall fescue using fungicides and biofungicides, 2006 |
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| Source: | PDMR: Plant Disease Management Reports. Vol. 1, 2007, p. T046. |
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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: Fungus control; Brown patch; Festuca arundinacea; Fungicides; Biological fungicides; Fungicide trials; Disease severity
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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 14-day intervals until 4 Aug. Turf was inoculated 24 hr after the initial fungicide applications by hand-dispersal of grain infested with Rhizoctonia 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 irrigation of 0.24-in applied daily at 3:00 hr for the remainder of the experiment. Visual estimates of disease severity were made using the Horsfall-Barratt rating scale. 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 >40% disease severity by 31 Jul. All treatments had a significant disease suppressive effect for the duration of the study. Heritage TL 0.8ME (2.0 fl oz); Rhapsody 0.1AS (5.0 fl oz) + Heritage TL 0.8ME (1.0 fl oz) and Heritage TL 0.8ME (1.0 fl oz) had a significant disease suppressive effect. Rhapsody 0.1AS 5.0 fl oz applied at 14-day interval, appeared to be less effective compared to the other treatments, but it was still statistically different from the untreated 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!
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Martínez-Espinoza, A. D. 2007. Control of brown patch of tall fescue using fungicides and biofungicides, 2006. PDMR: Plant Dis. Manage. Rep. 1:p. T046. |
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Last checked: 11/14/2016
Requires: PDF Reader |
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