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| Web URL(s): | https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T076.pdf
Last checked: 11/11/2016
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): | Martínez-Espinoza, A. D.;
Burpee, L. L. |
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| Author Affiliation: | Department of Plant Pathology, University of Georgia, Griffin, Georgia |
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| Title: | Fungicide program for dollar spot and brown patch management of creeping bentgrass in Georgia, 2008 |
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| Source: | PDMR: Plant Disease Management Reports. Vol. 3, 2009, p. T076. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Keywords: | TIC Keywords: Agrostis stolonifera; Boscalid; Chlorothalonil; Disease control; Disease severity; Dollar spot; Fosetyl Al; Fungicide efficacy; Fungicide evaluation; Fungicide programs; Iprodione; Pyraclostrobin; Rhizoctonia blight; Rhizoctonia solani; Sclerotinia homoeocarpa; Triticonazole
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| Cultivar Names: | Penncross |
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| Trade Names: | Emerald 70 WG; Insignia 20 WG; Trinity; Chipco Aliette; Daconil Ultrex; Iprodione PRO |
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| Geographic Terms: | Georgia |
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| Abstract/Contents: | "A fungicide trial was conducted on a 15-yr-old sward of creeping bentgrass grown on a sand/peat root zone (pH 6.2) at the Georgia Experiment Station. Fertilizer treatments consisted of 1.0 lb and 0.5 lb nitrogen (Lesco 24-4-10) per 1,000 sq ft applied on 5 May and 8 Sep, respectively. The turfgrass was maintained at a height of 0.2-in. by mowing three times per week. The objective of the trial was to establish a management program that provides disease control and high turf quality throughout the bentgrass management year with a rotation of fungicides. Emphasis was placed on dollar spot and brown patch. Treatments were arranged as plots (3.3 ft x ft) in a randomized complete block design with four replications. An initial application was made on 20 May and followed by additional fungicide applications at a 14-day interval. Fungicides were applied using 2.5 gal of water per 1,000 sq ft with a wheel-mounted, CO2-pressured boom sprayer at 30 psi using XR TeeJet 8002VS nozzles. On 21 May, the experimental plots were inoculated with a bentgrass isolate of S. homoeocarpa. On 26 Jun experimental plots were inoculated with a bentgrass isolate of R. Solani grown on a tall fescue/barley/wheat seed mixture. 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 ratings were performed at 7- to 14-day intervals from the initial application date. For dollar spot, infection centers were counted while visual estimates of brown patch disease severity were made using a modified Horsfall-Barratt rating scale. Values were subjected to analysis of variance and means were statistically separated using Fisher's protected LDS at α0.05. Dollar spot incidence progressed rapidly, reaching 230 dollar spot centers by 30 Jun. Throughout the study, the fungicide program provided significant (Α<0.05) disease suppression of dollar spot and brown patch compared to the nontreated check." |
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| Language: | English |
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| References: | 0 |
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| Note: | Tables |
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| ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Martínez-Espinoza, A. D., and L. L. Burpee. 2009. Fungicide program for dollar spot and brown patch management of creeping bentgrass in Georgia, 2008. PDMR: Plant Dis. Manage. Rep. 3:p. T076. |
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| Web URL(s):
https://www.plantmanagementnetwork.org/pub/trial/pdmr/reports/2009/T076.pdf
Last checked: 11/11/2016
Requires: PDF Reader
Access conditions: Item is within a limited-access website |
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