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| Web URL(s): | https://dl.sciencesocieties.org/publications/aj/pdfs/90/4/AJ0900040466
Last checked: 12/14/2016
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| Publication Type:
| Refereed |
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| Author(s): | Golembiewski, Robert C.;
Danneberger, T. Karl |
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| Author Affiliation: | Golembiewski: Department of Plant Sciences, Montana State University, Bozeman, MT; Danneberger: Department of Horticulture and Crop Science, The Ohio State University, Columbus, OH |
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| Title: | Dollar spot severity as influenced by trinexapac-ethyl, creeping bentgrass cultivar, and nitrogen fertility |
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| Section: | Crops
Other records with the "Crops" Section
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| Source: | Agronomy Journal. Vol. 90, No. 4, July/August 1998, p. 466-470. |
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| Publishing Information: | Madison, WI: American Society of Agronomy |
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| # of Pages: | 5 |
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| Keywords: | TIC Keywords: Dollar spot; Disease severity; Trinexapac-ethyl; Agrostis stolonifera; Choice of cultivar; Nitrogen fertility; Symptoms; Nitrogen fertilization; Sclerotinia homoeocarpa; Growth regulators; Blends; Cultivar evaluation; Application rates; Disease control; Fertilization rates; Fertilization; Golf fairways; Golf courses; Thatch accumulation
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| Cultivar Names: | Crenshaw; Penncross |
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| Abstract/Contents: | "Dollar spot (Sclerotinia homoeocarpa F. T. Bennett) is a widely distributed and destructive pathogen of turfgrass in the United States. A 2-yr field study was conducted at Columbus, OH, to determine the influence of a plant growth regulator, creeping bentgrass (Agrostis stolonifera L.) cultivars, and N fertility on dollar sopt severity. 'Crenshaw' creeping bentgrass was seeded alone or in a 50:50 blend by weight with 'Penncross' creeping bentgrass. Plots were fertilized at 0, 24.4, or 48.8 kg N haā»Ā¹ per application. One-half of each plot received trinexapac-ethyl (TE) [4-(cyclopropyl-Ī±-hydroxymethylene)-3,5-dioxo-cyclohexane acid methyl ester] at 0.8 L haā»Ā¹. The TE and fertilizer treatments were initiated in May 1995 and 1996 with four subsequent applications made at 30-d intervals. Initially, the cultivar blend reduced the rate of dollar spot development compared with Crenshaw alone; however, neither the blend nor Crenshaw provided commerically acceptable dollar spot suppression throughout the study. Both TE and N fertilization significantly (Pā¤0.05) reduced dollar spot severity over the 2-yr period. Trinexapac-ethyl applied alone effectively suppressed dollar spot activity, but efficacy increased with increasing N rates. Dollar spot symptoms decreased and thatch thickness increased at elevated N levels. During this 2-yr study, interactions between TE and N fertility resulted in a significant (Pā¤0.05) reduction in dollar spot severity. Thus, on golf course fairways where dollar spot may be severe, incorporation of these two treatments into a turfgrass management program will enhance dollar spot suppression and reduce fungicide inputs." |
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| Language: | English |
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| References: | 41 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Golembiewski, R. C., and T. K. Danneberger. 1998. Dollar spot severity as influenced by trinexapac-ethyl, creeping bentgrass cultivar, and nitrogen fertility. Agron. J. 90(4):p. 466-470. |
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| Web URL(s):
https://dl.sciencesocieties.org/publications/aj/pdfs/90/4/AJ0900040466
Last checked: 12/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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MSU catalog number: S 22 .A45 |
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