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231225s2003 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS.2003.87.8.949
|2 doi
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|a eng
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| 100 |
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|a Balogh, B
|e verfasserin
|4 aut
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| 245 |
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|a Improved Efficacy of Newly Formulated Bacteriophages for Management of Bacterial Spot on Tomato
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|c 2003
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|a Text
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|a ƒaComputermedien
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|a ƒa Online-Ressource
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|a Date Revised 20.11.2019
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|a published: Print
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|a Citation Status PubMed-not-MEDLINE
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|a Bacteriophages are currently used as an alternative method for controlling bacterial spot disease on tomato incited by Xanthomonas campestris pv. vesicatoria. However, the efficacy of phage is greatly reduced due to its short residual activity on plant foliage. Three formulations that significantly increased phage longevity on the plant surface were tested in field and greenhouse trials: (i) PCF, 0.5% pregelatinized corn flour (PCF) + 0.5% sucrose; (ii) Casecrete, 0.5% Casecrete NH-400 + 0.5% sucrose + 0.25% PCF; and (iii) skim milk, 0.75% powdered skim milk + 0.5% sucrose. In greenhouse experiments, the nonformulated, PCF-, Casecrete-, and skim milk-formulated phage mixtures reduced disease severity on plants compared with the control by 1, 30, 51, and 62%, respectively. In three consecutive field trials, nonformulated phage caused 15, 20, and 9% reduction in disease on treated plants compared with untreated control plants, whereas plants treated with PCF- and Casecrete-formulated phage had 27, 32, and 12% and 30, 43, and 24% disease reduction, respectively. Plants receiving copper-mancozeb treatments were included in two field trials and had a 20% decrease in disease in the first trial and a 13% increase in the second one. Skim milk-formulated phage was tested only once and caused an 18% disease reduction. PCF-formulated phage was more effective when applied in the evening than in the morning, reducing disease on plants by 27 and 13%, respectively. The Casecrete-formulated phage populations were over 1,000-fold higher than the nonformulated phage populations 36 h after phage application
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|a Journal Article
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|a biological control
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| 650 |
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|a h-mutant
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| 700 |
1 |
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|a Jones, J B
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Momol, M T
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Olson, S M
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Obradovic, A
|e verfasserin
|4 aut
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| 700 |
1 |
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|a King, P
|e verfasserin
|4 aut
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| 700 |
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|a Jackson, L E
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 87(2003), 8 vom: 20. Aug., Seite 949-954
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|x 0191-2917
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|g volume:87
|g year:2003
|g number:8
|g day:20
|g month:08
|g pages:949-954
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