Full TGIF Record # 18507
Item 1 of 1
Publication Type:
Author(s):Hartman, J. R.; Powell, A. J. Jr.; Clinton, W.
Title:Control of leaf spot of Kentucky bluegrass, 1988
Source:Kentucky Turfgrass Research. 1988, p. 50.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
# of Pages:1
Series:Progress Report 319
Keywords:TIC Keywords: Poa pratensis; Leaf spot; Chemical control; Fungicide evaluation; Combination treatments; Application rates; Surfactants; Fungicides; Iron; Formaldehyde; Drechslera poae
Geographic Terms:Kentucky
Abstract/Contents:1988 study to determine the efficacy of selected chemicals in control of leaf spot of Kenblue Kentucky bluegrass. Fungicide treatments were evaluated for leaf spot prevention on a Kentucky bluegrass turf at the University of Kentucky Spindletop Research Farm near Lexington. The turfgrass was maintained at a 2 in. mowing height, received 2.0 lb of nitrogen annually, was not irrigated, and otherwise received conventional maintenance. Each treatment was replicated four times in a randomized complete block design with 6 ft by 10 ft plots. Treatments were applied using a hand pumped solo backpack sprayer with a 6 ft. four nozzle boom delivering 2 gal/1000 sq ft and operating at 25 psi. Applications were made at biweekly intervals on 8 and 22 April, and 4 and 17 May, 1988. Plots were evaluated by estimation the percentage of leaf spot infected leaves in each plot on 6 May. A table provides treatmens, application rates and percent of leafspot on May 6. Disease pressure was relatively low; nevertheless, significant differences in disease levels did occur. the treatments containing iron left the turfgrass noticeably darker green in color. The formaldehyde treatment caused a gradual thinning of the turf which recovered after applications ceased.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hartman, J. R., A. J. Jr. Powell, and W. Clinton. 1988. Control of leaf spot of Kentucky bluegrass, 1988. KY. Turfgrass Res. p. 50.
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MSU catalog number: SB 433 .A1 K4
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