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| Publication Type:
| Report |
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| Author(s): | Martin, Bruce S. |
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| Author Affiliation: | Department of Plant Pathology and Physiology, Pee Dee Research and Education Center, Florence, SC |
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| Title: | Evaluation of sentinel and other fungicide combinations for brown patch control in creeping bentgrass, 1996 |
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| Source: | Fungicide and Nematicide Tests. Vol. 52, 1997, p. 369. |
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| Publishing Information: | St. Paul, MN: American Phytopathological Society |
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| # of Pages: | 1 |
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| Abstract/Contents: | "The experiment was conducted on 4-yr old `Pennlinks' creeping bentgrass maintained as an experimental putting green at the Pee Dee Research and Education Center near Florence, SC. The soil was a Norfolk sandy loam, pH 5.8. The turfgrass was mowed every other day, at 0.1875-inch cutting heights, using a commercial reel mower. Throughout the trial, plots were fertilized weekly with 21-3-21 greens grade fertilizer at 0.25 lb N/1000 sq. ft. The entire area was treated once with Orthene Turf, Tree and Ornamental WSP at 2.4 oz/1000 sq ft. for suppression of cutworms. The site was naturally infested with Rhizoctonia solani. All treatments were first applied on 7 Jun 96 and continued on a 14-day or 21-day schedule. Sprays were applied with a 2 nozzle shielded boom sprayer, with Teejet 8002ER tips, and 30 psi spray pressure at the boom. Diluent rate was 2.04 gal/1000 sq ft. Treatments were arranged in a randomized complete block design, with 4 replications. All plots measured 3 ft x 5 ft. Disease severity and a percent of the plot area with brown patch symptoms, and turf quality were rated weekly, with the first rating on 21 Jun. Data presented represent disease and turf quality at the end of a spray interval. Disease severity was moderate throughout the test period, reaching a high in check plots of only 41%. Temperatures were moderated throughout the summer, rarely exceeding 90⁰ F, with average irrigation or rainfall to the plots of at least 1 inch per week. Combinations of Daconil with Sentinel gave similar levels of brown patch control compared to Sentinel alone for both spray intervals evaluated. However, turf quality was improved with the Daconil and Sentinel combination evaluated at 14 day intervals over Sentinel alone at the 21 day interval. The low rates of Sentinel utilized in this trial did not give an objectionable loss of shoot density or an unacceptable dark green color. Also, the combinaiton of Sentinel and Heritage improved disease control and turf quality over Heritage alone. Sentinel and Fore in combination also performed better than Aliette and Fore combinations, primarily due to the superior dollar spot control with Sentinel." |
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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):
Martin, B. S. 1997. Evaluation of sentinel and other fungicide combinations for brown patch control in creeping bentgrass, 1996. Fungicide Nematicide Tests. 52:p. 369. |
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