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Web URL(s):https://archive.lib.msu.edu/tic/itgcs/article/1995feb5.pdf
    Last checked: 09/29/2008
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Publication Type:
i
Proceedings
Author(s):Reicher, Zac
Author Affiliation:Purdue University, West Lafayette, IN
Title:Nontarget effects of fungicides on creeping bentgrass
Meeting Info.:San Francisco, February 20-27, 1995
Source:Conference Proceedings: 66th International Golf Course Conference and Show. 1995, p. 5.
Publishing Information:Lawrence, KS: Golf Course Superintendents Association of America
# of Pages:1
Keywords:TIC Keywords: Fungicides; Agrostis stolonifera; Non-target effects; Application frequency; Benomyl; Chlorothalonil; Iprodione; Propiconazole; Temperatures
Cultivar Names:Penncross
Abstract/Contents:"There is a definite possibility that fungicides applied frequently may cause negative non-target effects on creeping bentgrass. The objective of this research was to determine if frequent applications of fungicides affect growth and physiology of creeping bentgrass. The fungicides benomyl, chlorothalonil (Daconil 2787), iprodione (Chipco 26019), and propiconazole (Banner) were used throughout a three-year field study. These fungicides were applied 16 times during each of three growing seasons to Penncross creeping bentgrass maintained under putting green conditions. Propiconazole was the most active of the fungicides, improving color and increasing clipping weights, but decreasing density of the turf. The fungicides had variable effects on rooting, water-soluble carbohydrate concentrations of clippings, and thatch. Benomyl and chlorothalonil decreased earthworm activity. It was surprizing that the fungicides had very few negative effects on bentgrass, even with the application frequency used in our study. In a companion growth chamber study, we observed the effects of frequent fungicide applications under cool (72 degree day/60 degree night) and warm (86 degree day/70 degree night) environments. We thought that non-target effects of fungicides would be exaggerated under warm temperatures. Since most fungicides are used during warm weather, it is important to understand their effect on plants during this weather. Fungicides affected shoot and root weights, root-to-shoot ratios, and water-soluble carbohydrate concentrations of the plants similarly regardless of temperature regime. Our study shows that frequent use of fungicides have few negative effects on creeping bentgrass growth. This does not give a license to use these products more frequently than recommended on the label. For economical, environmental, and disease management resons, label recommendations should be followed when using fungicides and all pesticides."
Language:English
References:0
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Reicher, Z. 1995. Nontarget effects of fungicides on creeping bentgrass. p. 5. In Conference Proceedings: 66th International Golf Course Conference and Show. San Francisco, February 20-27, 1995. Lawrence, KS: Golf Course Superintendents Association of America.
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https://archive.lib.msu.edu/tic/itgcs/article/1995feb5.pdf
    Last checked: 09/29/2008
    Requires: PDF Reader
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