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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2012/T015.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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| Publication Type:
| Report |
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| Author(s): | Obasa, K.;
Kennelly, M. |
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| Author Affiliation: | Dept. of Plant Pathology, Kansas State University, Manhattan, KS |
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| Title: | Evaluation of Velista and four fungicide programs for control of dollar spot on creeping bentgrass in Kansas, 2011 |
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| Section: | Turfgrass
Other records with the "Turfgrass" Section
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| Source: | PDMR: Plant Disease Management Reports. Vol. 6, 2012, p. T015. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Related Web URL: | http://www.plantmanagementnetwork.org/pub/trial/PDMR/volume6/abstracts/T015.asp
Last checked: 04/30/2012
Access conditions: Document is within a limited-access website
Notes: Summary only |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Dollar spot; Fungicide evaluation; Fungicide programs; Rhizoctonia blight; Visual evaluation
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| Cultivar Names: | Crenshaw; Cato |
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| Trade Names: | Velista |
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| Abstract/Contents: | "Four fungicide programs and Velista were evaluated on an established stand of a blend of 'Crenshaw' and 'Cato' creeping bentgrass on a sand-based putting green at the Rocky Ford Turf Research Center, Manhattan KS. The turf was mowed to a height of 0.156-in. and irrigated daily for 15 min. The area was fertilized biweekly with 0.25 lb nitrogen (N)/1000ft2 using urea (46-0-0) during March through June and 0.33 lb N/1000ft2 during July through November. Beginning on 19-May, Velista was applied at two application rates, and four fungicide programs with eight individual fungicide applications were made at 14-day intervals. Fungicides were applied with a CO2-powered boom sprayer equipped with two XR Tee Jet 8002VS nozzles at 30 psi in water equivalent to 2.2 gal/1000ft2. Plots were 6 ft x 4 ft and arranged in a randomized complete block design with three replications. Plots were rated periodically by visually estimating the percentage of each plot affected by dollar spot and brown patch, as well as assessing turf quality using a 1 to 9 quality rating scale with 9 representing the highest quality and 6 representing minimal acceptable quality. Disease and quality data were subjected to analysis of variance and treatment means were compared using Fisher's individual error rate at a P-value of 0.05. Dollar spot and brown patch activity were not visible until the first week in August. At this time, disease symptoms were visible in the untreated plots. There were trace (<2%) levels of disease in programs 1, 2, and 4 but they were not significantly (P=0.05) different from the other treated plots which had no disease symptoms throughout the study period. The four fungicide programs and the applications of Velista successfully controlled dollar spot and brown patch symptoms throughout the study period. Turfgrass quality was significantly higher in the treated plots compared with the untreated. There were no significant differences in turfgrass quality among the fungicide treatments. No phytotoxicity or growth regulator effects were observed." |
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| Language: | English |
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| References: | 0 |
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| See Also: | Updated version appears in K-State Turfgrass Research 2012, 2012, p. 64-66, R=234447. R=234447 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Obasa, K., and M. Kennelly. 2012. Evaluation of Velista and four fungicide programs for control of dollar spot on creeping bentgrass in Kansas, 2011. PDMR: Plant Dis. Manage. Rep. 6:p. T015. |
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https://www.plantmanagementnetwork.org/pub/trial/PDMR/reports/2012/T015.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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