Full TGIF Record # 18559
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Author(s):Hartman, J. R.; Powell, A. J. Jr.; Clinton, W.; Tapp, L.
Title:Bermudagrass spring dead spot control 1987-1988
Source:Kentucky Turfgrass Research. 1988, p. 49.
Publishing Information:Lexington, KY: University of Kentucky, College of Agriculture, Cooperative Extension Service
Series:Progress Report 319
Keywords:TIC Keywords: Cynodon; Spring dead spot; Benomyl; Propiconazole; Fenarimol; Chemical control; Athletic fields; Fungicide evaluation; Application rates; Application timing; Autumn
Abstract/Contents:Study to determine if fall applied fungicides would be effective in preventing spring dead spot. Disease control plots were established on the Scott County High School football field, a Bermudagrass var. Vamont turf having a history of spring dead spot. Each plot consisted of a 5-yard strip extending the full width of the field. Plots were arranged in a randomized complete block design, and replicated four times. Fungicides were applied 22 Sep 87, with a tractor-mounted boom sprayer, once in each direction so that 2 gal of the fungicide suspension was applied per 1000 ft2. The treatments were watered in within 48 hr using a sprinkler irrigation system. The field was mulched with straw during the winter months, and otherwise received conventional care. Plots were rated for spring dead spot disease on 25 Apr 88 by estimating the percent turfgrass cover and by counting the number of dead spots in three regions of each plot, the center one-third, and the two outer one-third areas. A table provides fungicides used, rate of application and number of deadspots/plot (total and in grassiest area). Large areas of the field failed to green-up in spring, perhaps due to intensive athletic use in the fall, or to winter damage related to thatch build-up. In the more grassy parts of the field, spots were very numerous. Although plots treated with the fungicide Benlate had fewer spots than others, none of the treatments prevented disease or significantly reduced disease levels compared with untreated plots. The results were very erratic and fungicide effects may have been masked by the large areas of turf killed by other causes.
Geographic Terms:Kentucky
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hartman, J. R., A. J. Jr. Powell, W. Clinton, and L. Tapp. 1988. Bermudagrass spring dead spot control 1987-1988. KY. Turfgrass Res. p. 49.
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MSU catalog number: SB 433 .A1 K4
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