Full TGIF Record # 1920
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Web URL(s):http://ucce.ucdavis.edu/files/repositoryfiles/ca3410p11-62813.pdf
    Last checked: 07/08/2013
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Publication Type:
i
Report
Author(s):Gibeault, Victor A.; Autio, Richard; Spaulding, Stanley; Youngner, Victor B.
Author Affiliation:Gibeault: Environmental Horticulturist; Autio: Staff Research Associate, Cooperative Extension; Youngner: Professor, Department of Botany and Plant Sciences, University of California Riverside; Spaulding: Staff Research Associate, South Coast Field Station, Santa Ana
Title:Mixing turfgrasses controls Fusarium blight
Source:California Agriculture. Vol. 34, No. 10, October 1980, p. 11-12.
# of Pages:2
Publishing Information:Oakland, CA: Division of Agriculture and Natural Resources, University of California.
Related Web URL:http://ucanr.edu/repository/CAO/landingpage.cfm?article=ca.v034n10p11&abstract=yes
    Last checked: 07/08/2013
    Notes: Abstract only
Keywords:TIC Keywords: Poa pratensis; Lolium perenne; Fusarium culmorum; Fusarium blight; Disease control; Tiller density; Diseases; Root and foliage diseases; Visual evaluation; Quality; Seed weight; Disease resistance; Seed mixtures
Abstract/Contents:Study conducted to find a practical, non-chemical method for controlling Fusarium blight in Kentucky bluegrass (Poa pratensis L.). Various mixes of P. pratensis L. and perennial ryegrass (Lolium perenne) were evaluated for Fusarium blight resistance and overall turf quality response. Park Kentucky bluegrass and a blend of 50% Manhattan and 50% Pennfine perennial ryegrass were used in all treatments. 11 bluegrass/ryegrass mixes, ranging from 100% kentucky bluegrass to 50% kentucky bluegrass; 50% rye/sq. ft. were established in September 1975 in 25 plots, each seeded at a rate equivlent to 3 pounds per 1,000 sq. ft. The treatments were replicated 4 times in a completely randomized block pattern. Once established , the experimental area was cut a 1 3/4 inches height and fertilized with a slow-release nitrogen source at an equvalent rate of 3 pounds per sq. ft. per year. Irrigation was based upon water loss from an evaporative pan. No other primary or secondary maintenance was used. At least 2 people made monthly turf scores. The plots were rated for color intensity during 1976. In 1978, Fusarium blight data was recorded as % area affected. During the winter of 1978-79, bluegrass and ryegrass tillers were counted in tree 2-inch plugs taken from each plot. Data was subjected to analysis of variance and significant differences determined using Duncan's Multiple Range Test. During the warm season (May-Sep.), mixed plots had slightly better appearances than straight bluegrass plots. In the cool season (Oct.-Apr.), the mixed plots had a significantly better appearance than the straight bluegrass plots. Analysis of combined turf scores for the two year period,1977 and 1979, showed that all mixes had significantly higher appearance ratings than straight bluegrass. Consistant color improvement was noted up to 15% ryegrass with no further improvement above 15% ryegrass. Fusarium blight in Aug. 1978 killed 30% of the pure bluegrass plot, where as plots with 10% or more ryegrass mixture had no disease symptoms. The bluegrass/ryegrass plant count was about 50/50 with 15% or more ryegrass in the seed mix. In conclusion, when establishing turf, addition of 10-15% perennial ryegrass seeds by weight to kentucky bluegrass controls Fusarium blight and results in improved turf color and appearance. ryegrass (Lolium perenne) mixes were evaluated for Fusarium blight resistance and overall turf quality (visual appearance ratings based on color, density, texture, pest activity and uniformity). All bluegrass/ryegrass mixes had significantly higher appearance ratings than 100% bluegrass plots. Appearance ratings were highest with 55% bluegrass/45% ryegrass and 50%/50% bluegrass/ryegrass mixes by weight. Fusarium blight killed about 30% of the area of 100% bluegrass plots but disease symptoms were eliminated in all treatments containing 10% or more ryegrass.
Language:English
References:0
See Also:Updated version appears in TurfNews [ASPA], 4(4) July/August 1981, p. 16, 19-20, R=105755. R=105755
Note:Reprint appears in California Turfgrass Culture, 30(2-4) 1980
Reprint appears in Green World, 11(3) Fall 1981, p. 1, 3-4
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Gibeault, V. A., R. Autio, S. Spaulding, and V. B. Youngner. 1980. Mixing turfgrasses controls Fusarium blight. Calif. Agric. 34(10):p. 11-12.
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http://ucce.ucdavis.edu/files/repositoryfiles/ca3410p11-62813.pdf
    Last checked: 07/08/2013
    Requires: PDF Reader
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