Full TGIF Record # 124195
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Web URL(s):https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2007/T047.pdf
    Last checked: 11/14/2016
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Publication Type:
i
Report
Author(s):MartĂ­nez-Espinoza, A. D.
Author Affiliation:Department of Plant Pathology, University of Georgia, Griffin, Georgia
Title:Control of brown patch of tall fescue using fungicides and biofungicides, 2005
Source:PDMR: Plant Disease Management Reports. Vol. 1, 2007, p. T047.
Publishing Information:St. Paul, MN: American Phytopathological Society
# of Pages:1
Keywords:TIC Keywords: Fungus control; Brown patch; Festuca arundinacea; Fungicides; Biological fungicides; Fungicide trials; Disease severity
Cultivar Names:Kentucky 31
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 7 Jun and 7 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 7 Jun in 2.5 gal water per 1000 sq ft with a hand held, CO2- pressured boom sprayer at 30 psi. Subsequent applications were made at 21-day intervals until 18 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 followed by normal irrigation of 0.24-in applied daily at 3:00 hr. 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). Rhizoctonia solani infection progressed rapidly, reaching a peak of >90% disease severity by 28 Jul. Heritage 50WDG (0.4 oz) and Rhapsody O.IAS (5.0 fl oz) + Heritage 50 WDG (0.2 oz) had a significant disease suppressive effect for the duration of the study. Bayer Advanced Fungus 1.5%G (1.5 lb) and Spectricide Immunox Lawn 0.39% (4.0 lb) did not provide statistically significant control compared to the untreated check."
Language:English
References:0
Note:This item is as abstract and tables only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
MartĂ­nez-Espinoza, A. D. 2007. Control of brown patch of tall fescue using fungicides and biofungicides, 2005. PDMR: Plant Dis. Manage. Rep. 1:p. T047.
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    Last checked: 11/14/2016
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