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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2012/T043.pdf
Last checked: 11/14/2016
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| Publication Type:
| Report |
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| Author(s): | Martinez-Espinoza, A. D.;
Burpee, L. L. |
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| Author Affiliation: | Department of Plant Pathology, University of Georgia, Griffin, GA |
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| Title: | Evaluation of fungicide efficacy for control of dollar spot on creeping bentgrass in Georgia, 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. T043. |
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| Publishing Information: | St. Paul, Minnesota: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Disease incidence; Disease control; Fungicide efficacy; Fungicide evaluation; Fungicide trials; Sclerotinia homoeocarpa
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| Cultivar Names: | Penncross |
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| Abstract/Contents: | "A fungicide trial was conducted on an 18-yr-old sward of creeping bentgrass grown on a sand/peat root zone (pH 6.2) at the University of Georgia-Griffin campus. Fertilizer treatments consisted of 1.0 lb and 0.5 lb nitrogen (Lesco 24-4-10) per 1,000 sq ft applied on 22 Apr and 2 Sep, respectively. The turfgrass was maintained at a height of 0.2-in. by mowing three times per week. Treatments were arranged as plots (3.3 ft x 4 ft) in a randomized complete block design with four replications. An initial fungicide application was made on 5 May; subsequent applications were at 14-day intervals. Fungicides were applied using 2.0 gal of water per 1,000 sq ft with a hand-held, CO2-pressured boom sprayer at 30 psi using XR TeeJet 8002VS nozzles. On 6 May the experimental plots were inoculated with a bentgrass isolate of Sclerotinia homoeocarpa grown on a tall fescue/barley/wheat seed mixture previously soaked in water overnight and then double sterilized in an Erlenmeyer flask. The plots received approximately 0.24 in. of irrigation water daily at 15:00 and 17:00 hr to ensure foliar wetness for infection. Visual evaluation of dollar spot infection centers was conducted at 7- to 14-day intervals starting on 9 May. Values were subjected to analysis of variance and means were separated using Student-Newman-Keuls α=0.05. Dollar spot incidence progressed rapidly, reaching >=136 dollar spot centers by 6 Jun. Throughout the study, all treatments provided significant (α<0.05) disease suppression compared to the non-treated check. No phytotoxicity was observed with any of the treatments at any of the rates. Turf quality was closely correlated (inversely) to the number of infection centers." |
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| Language: | English |
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| References: | 0 |
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| Note: | This item is as abstract and tables only!
Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Martinez-Espinoza, A. D., and L. L. Burpee. 2012. Evaluation of fungicide efficacy for control of dollar spot on creeping bentgrass in Georgia, 2011. PDMR: Plant Dis. Manage. Rep. 6:p. T043. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2012/T043.pdf
Last checked: 11/14/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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