Full TGIF Record # 21675
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Publication Type:
Author(s):Nelson, Eric B.; Craft, Cheryl
Title:Development of a pathogen monitoring system for golf course turf: Population dynamics of turf pathogens in golf course putting greens
Section:Disease management
Other records with the "Disease management" Section
Source:1989-90 Cornell University Turfgrass Research Report. 1990, p. 99-107.
# of Pages:9
Publishing Information:[Ithaca], NY: Cornell University
Keywords:TIC Keywords: Golf greens; Pathogens; Fungi; Disease surveys; Diseases; Monitoring; Population dynamics; Pythium; Fungicides; Composts; Environmental factors; Biological control; Pythium graminicola
Abstract/Contents:"Results of this study have provided some baseline information on the population dynamics of Pythium species in golf course putting greens. Our results have shown that populations of Pythium species might actually increase in response to Pythium-selective and possibly other fungicide; a finding contrary to current beliefs among researchers as well as turfgrass managers about the responses of target pathogen populations to fungicides. While population of Pythium species in the putting greens studied were unusually high (relative to agricultural soils) and not limiting to disease development, low management strategies in the absence of chemical fungicides on putting greens may result in a reduction in populations over the long term to levels that become limiting to disease development such that no matter how favorable environmental conditions might be, disease development would not occur. While currently available fungicides are a useful tool in managing diseases, they do not appear to be a useful tool for the management of pathogen populations. Future studies will be directed toward determining threshold populations and assessing the impact of biological as well as chemical control strategies on reducing populations in putting greens. Our results have also shown that late fall applications of some composts provide a means of establishing elevated populations of potentially antagonistic bactyeria into turfgrass ecosystems and reducing populations of Pythium species. Future studies will be directed toward an understanding of the impact of introduced antagonist populations on populations of soilborne pathogens of turfgrass in putting greens."
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Nelson, E. B., and C. Craft. 1990. Development of a pathogen monitoring system for golf course turf: Population dynamics of turf pathogens in golf course putting greens. Cornell Turfgrass Ann. Rep. p. 99-107.
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