Full TGIF Record # 184521
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Publication Type:
Author(s):Ban, J.; Jo, Y.; Jung, G.
Author Affiliation:Ban and Jung: Dept. of Plant, Soil, and Insect Sciences, University of Massachusetts-Amherst; Jo: Dept. of Plant Pathology and Microbiology, Texas A&M University
Title:Effect of repeated applications of fungicides on the development of resistance in dollar spot
Section:Turf pathology research
Other records with the "Turf pathology research" Section
Meeting Info.:South Deerfield, Massachusetts: June 18, 2008
Source:University of Massachusetts Turf Research Field Day. 2008, p. 147-148.
# of Pages:2
Publishing Information:Amherst, MA: University of Massachusetts
Keywords:TIC Keywords: ANOVA; Agrostis stolonifera; Dollar spot; Fungicide application; Fungicide resistance; Golf fairways; Mutations; Poa annua; Propiconazole; Sclerotinia homoeocarpa; Thiophanate-methyl
Trade Names:Banner MAXX; Cleary 3336
Abstract/Contents:Presents a study conducted by the University of Massachusetts-Amherst "to determine how fast the dollar spot population shifts in response to repeated applications of fungicides." Details the materials and methods used in the study, stating that "percent diseased area per plot was subjected to analysis of variance to determine differences between treatments." Adds that "laboratory petri dish assays were run in the lab to evaluate in vitro fungicide sensitivity of dollar spot isolates for propiconazole and thiophanate-methyl." Reports that "resistant isolates to thiophanate-methyl appeared and increased in the population to almost 100% [percent] in frequency on the plots treated with two applications of thiophanate-methyl by the end of the growing season (2006)." Concludes that "a very low frequency of thiophanate-methyl resistant isolates caused by spontaneous mutation might be present in the turfgrass field at the Joseph Troll Turf Research Center." Includes tables depicting trial information such as fungicide plot maps and a list of commercial fungicides used in the study.
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Ban, J., Y. Jo, and G. Jung. 2008. Effect of repeated applications of fungicides on the development of resistance in dollar spot. p. 147-148. In University of Massachusetts Turf Research Field Day. South Deerfield, Massachusetts: June 18, 2008. Amherst, MA: University of Massachusetts.
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