Full TGIF Record # 19811
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Author(s):Hartman, J. R.; Clinton, W.; Powell, A. J.
Title:Evaluation of fungicides for control of dollar spot of creeping bentgrass-1982
Source:Kentucky Turfgrass Research. 1982, p. 43.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
Keywords:TIC Keywords: Agrostis stolonifera; Dollar spot; Fungicides; Iprodione; Triadimefon; Chlorothalonil; Benomyl; Propiconazole; Application timing; Fungicide evaluation
Abstract/Contents:1982 test to evaluate new and existing fungicides for their effectiveness in control of dollar spot in creeping bentgrass. Experimental plots were established on creeping bentgrass 'Penncross' turf at Spindletop Farm near Lexington, Ky. The turf received conventional care, and was maintained at 5/16 inch cutting height. Fungicide treatments were applied at the rate of 2 gal per 1000 sq ft at 25 psi with a backpack sprayer equipped with a 6 ft boom having 4 nozzles. Treatments were applied to 6 ft x 10 ft plots that were replicated four times in a randomized complete block design. Some plots were treated with fungicide at 4x normal rate in a single application (SAT) whereas others were treated at regular intervals. All plots were treated May 24 and those receiving additional sprays were treated Jun 8 and Jun 22. Plots were evaluated Jun 27 and Jul 21 for number of centers of dollar spot infection per plot. Plots were naturally infected with dollar spot at the beginning of the test and the disease became very severe in the untreated and some treated plots as the season progressed. All fungicides tested gave some degree of control, however, Bayleton, Chipco 26019, and Tilt were most effective. A table provides fungicides, formulation, application rate and number of dollar spot infection centers on 6/17 and 7/21.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hartman, J. R., W. Clinton, and A. J. Powell. 1982. Evaluation of fungicides for control of dollar spot of creeping bentgrass-1982. KY. Turfgrass Res. p. 43.
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