Development of an Integrated Approach for Managing Bacterial Wilt and Root-Knot on Tomato Under Field Conditions

A 2-year field study was conducted to develop a field application method using thymol as a preplant soil treatment for controlling bacterial wilt and root-knot nematode on tomato (Lycopersicon esculentum). In addition, acibenzolar-S-methyl (ASM), which induces plant systemic resistance, was applied...

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Veröffentlicht in:Plant disease. - 1997. - 91(2007), 10 vom: 01. Okt., Seite 1321-1326
1. Verfasser: Ji, Pingsheng (VerfasserIn)
Weitere Verfasser: Momol, M Timur, Rich, Jimmy R, Olson, Stephen M, Jones, Jeffrey B
Format: Online-Aufsatz
Sprache:English
Veröffentlicht: 2007
Zugriff auf das übergeordnete Werk:Plant disease
Schlagworte:Journal Article integrated disease management plant essential oil
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520 |a A 2-year field study was conducted to develop a field application method using thymol as a preplant soil treatment for controlling bacterial wilt and root-knot nematode on tomato (Lycopersicon esculentum). In addition, acibenzolar-S-methyl (ASM), which induces plant systemic resistance, was applied in conjunction with thymol to determine whether combining these tactics could improve bacterial wilt management. The test sites were artificially infested with Ralstonia solanacearum and Meloidogyne arenaria, and thymol was applied as preplant fumigation through drip irrigation lines under polyethylene mulch at a rate of 73 kg/ha in both 2004 and 2005. ASM was applied primarily as foliar spray at a concentration of 25 mg/liter. Application of thymol significantly reduced incidence of bacterial wilt on tomato in both years of the trial. In thymol-treated plots, 26.0 and 22.6% of the plants wilted in 2004 and 2005, respectively; whereas, in untreated plots, more than 95% of the plants wilted in each year. Number of root-knot nematode juveniles was significantly reduced in field plots treated with thymol and ASM for both years. The combined use of thymol and ASM provided the greatest reduction of root galling among the treatments. Tomato yield (cv. FL47) was evaluated only in the 2005 trial; thymol-treated plots produced significantly higher marketable yield than untreated plots, and the thymol treatment in combination with ASM significantly increased tomato yield compared with thymol or ASM alone. These results indicate that use of thymol and ASM was beneficial in controlling bacterial wilt and root-knot. We developed an effective method for applying thymol through drip irrigation lines for managing these diseases in tomato production 
650 4 |a Journal Article 
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700 1 |a Momol, M Timur  |e verfasserin  |4 aut 
700 1 |a Rich, Jimmy R  |e verfasserin  |4 aut 
700 1 |a Olson, Stephen M  |e verfasserin  |4 aut 
700 1 |a Jones, Jeffrey B  |e verfasserin  |4 aut 
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