Full TGIF Record # 145732
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Publication Type:
Content Type:Abstract or Summary only
Author(s):McDonald, S. J.; Dernoeden, P. H.; Bigelow, C. A.
Title:Dollar spot severity as influenced by irrigation practices and plant protection chemicals
Section:Professional society abstracts
Other records with the "Professional society abstracts" Section
Source:2006 Turfgrass Pathology and Weed Science ResearchSummaries [Maryland]. 2006, p. 65.
# of Pages:1
Publishing Information:College Park, MD: University of Maryland Department of Natural Resource Sciences and Landscape Architecture
Abstract/Contents:"Creeping bentgrass (Agrostis stolonifera L. var palustris (Huds.) Farw.) is commonly grown on golf fairways, but it can be chronically affected by dollar spot (Sclerotinia homoeocarpa F. T. Bennett; DS) disease. This field study assessed the influence of two irrigation regimes (light and frequent versus deep and infrequent) and six chemical treatments including: chlorothalonil (tetrachloroisophthalonitrile); paclobutrazol (4-chlorophenyl) methyl-alpha (1-1 dimethyl)-1h-1, 2,4 triazole-1 ethanol; PB: polymeric polyoxyalkylene 95% oxoalkonyl hydroxyl polyodlalkane diyl 5%; wetting agent WA); chlorothalonil + PB, chlorothalonil + WA and chlorothalonil + PB + WA on dollar spot severity over a three year period. Turf was 'Crenshaw' creeping bentgrass, which was maintained under fairway conditions. Dollar spot was more severe in late summer in creeping bentgrass that received infrequent irrigation versus frequent irrigation in 2002 and 2004. Soil moisture levels above 0.25 cm3 cm3 were associated with an improved ability of chlorothalonil, PB, and WA to suppress dollar spot in late summer. Paclobutrazol (40 to >60%) and WA (30 to 50%) often suppressed dollar spot, and sometimes there was improved dollar spot control when tank-mixing PB, but not WA, with chlorothalonil."
Note:This item is an abstract only!
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
McDonald, S. J., P. H. Dernoeden, and C. A. Bigelow. 2006. Dollar spot severity as influenced by irrigation practices and plant protection chemicals. Turfgrass Pathol. Weed Sci. Res. Sum. p. 65.
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