Full TGIF Record # 111106
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DOI:10.21273/HORTSCI.39.7.1750
Web URL(s):https://journals.ashs.org/hortsci/view/journals/hortsci/39/7/article-p1750.xml?rskey=HJ2uL4
    Last checked: 11/19/2019
    Requires: PDF Reader
Publication Type:
i
Refereed
Author(s):Hardebeck, Glenn A.; Turco, Ronald F.; Latin, Richard; Reicher, Zachary J.
Author Affiliation:Hardebeck: Professional Assistant; Turco: Professor; Reicher: Associate Professor, Department of Agronomy; Latin: Professor, Department of Botany, Purdue University, West Lafayette, Indiana
Title:Application of Pseudomonas aureofaciens Tx-1 through irrigation for control of dollar spot and brown patch on fairway-height turf
Section:Turf management
Other records with the "Turf management" Section
Source:HortScience. Vol. 39, No. 7, December 2004, p. 1750-1753.
# of Pages:4
Publishing Information:Alexandria, VA: American Society for Horticultural Science
Keywords:TIC Keywords: Agrostis stolonifera; Agrostis tenuis; Application methods; Biological control; Disease control; Dollar spot; Irrigation program; Pseudomonas aureofaciens; Rhizoctonia blight; Sclerotinia homoeocarpa
Cultivar Names:Astoria; Crenshaw
Trade Names:Tx-1
Abstract/Contents:"Pseudomonas aureofaciens strain Tx-1 is suggested as a biological control for Sclerotinia homoeocarpa (F.T. Bennett) and brown patch (Rhizoctonia solani Kuhn) on golf courses. To overcome application difficulties, a field bioreactor is used to grow Tx-1 daily and then inject into nightly irrigation on the golf course. Though Tx-1 shows some promise for disease control in vitro, it is relatively untested under field conditions. We conducted three field experiments to 1) evaluate the efficacy Tx-1 when applied through an irrigation system for the control of dollar spot and brown patch; 2) determine if there is an interaction between nitrogen fertility or fungicides on efficacy of Tx-1; and 3) determine if Tx-1 can extend the duration of dollar spot control by a single application of fungicide. Nightly applications of Tx-1 through irrigation did not affect brown patch on 'Astoria' colonial bentgrass (Agrostis capillaris Sibth.) during the 2 years of our study. Tx-1 reduced dollar spot in 'Crenshaw' creeping bentgrass (Agrostis palustris Huds.) by 37% in 1998 compared to non-Tx-1 treatments, but Tx-1 had no effect on dollar spot in 1999. Under low disease pressure, Tx-1 increased the dollar spot control of fungicides by 32% and increased the duration of control by 2.6 days. However, Tx-1 had no effect on fungicide efficacy or duration of control later in the summer when dollar spot pressure was high. Fungicides did not negatively affect Tx-1's control of brown patch or dollar spot, nor did fertilizer regime affect brown patch or dollar spot control by Tx-1. Although delivery of Tx-1 in our studies was optimized, disease control was marginal and occurred only under low disease pressure. Therefore, we conclude Tx-1 has limited practical value for turfgrass disease control on golf courses."
Language:English
References:31
See Also:See also related article "Pseudo dollar spot control?" Golf Course Management, 88(6) June 2020, p. 72, R=313639. R=313639
Note:Tables
ASA/CSSA/SSSA Citation (Crop Science-Like - may be incomplete):
Hardebeck, G. A., R. F. Turco, R. Latin, and Z. J. Reicher. 2004. Application of Pseudomonas aureofaciens Tx-1 through irrigation for control of dollar spot and brown patch on fairway-height turf. HortScience. 39(7):p. 1750-1753.
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DOI: 10.21273/HORTSCI.39.7.1750
Web URL(s):
https://journals.ashs.org/hortsci/view/journals/hortsci/39/7/article-p1750.xml?rskey=HJ2uL4
    Last checked: 11/19/2019
    Requires: PDF Reader
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MSU catalog number: SB 1 .H64
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