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231225s2018 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS-08-17-1162-RE
|2 doi
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|a pubmed24n0976.xml
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|a (DE-627)NLM293008930
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|a (NLM)30673378
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Nguyen, K A
|e verfasserin
|4 aut
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|a Efficacy of Copper and New Bactericides for Managing Olive Knot in California
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|c 2018
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 25.02.2019
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|a Date Revised 25.02.2019
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|a published: Print-Electronic
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|a Citation Status MEDLINE
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|a Baseline sensitivities were established for kasugamycin and oxytetracycline for 147 strains of Pseudomonas savastanoi pv. savastanoi collected from olive knots throughout California. Minimum inhibitory concentrations for ≥95% growth inhibition ranged from 1.86 to 11.52 and 0.13 to 0.40 µg/ml for kasugamycin and oxytetracycline, respectively. In copper sensitivity evaluations, 95.3% of the strains collected grew at concentrations of metallic copper equivalent (MCE) of <20 µg/ml, 2.7% grew at MCE between 20 and 30 µg/ml (moderately sensitive), and 2% grew at MCE of 150 µg/ml (resistant). Copper resistance was never reported previously in the olive knot pathogen, and pathogenicity studies confirmed a high virulence of the copper-resistant strains. In comparative field studies, kasugamycin at 200 µg/ml performed equally to the standard copper hydroxide treatment (MCE of 1,260 µg/ml) for reducing knot development on lateral wounds of Arbequina and Manzanillo olive inoculated with a copper-sensitive strain and was better than copper using a highly copper-resistant strain. Oxytetracycline at 200 µg/ml was not as effective as copper or kasugamycin but significantly reduced the disease as compared with the untreated control. Field studies on application timings of copper, kasugamycin, and copper-kasugamycin mixtures to inoculated wounds indicated that treatments within 24 h of inoculation resulted in higher disease control than applications at later times. In greenhouse trials, copper or copper-kasugamycin applied to wounds 7 days before inoculation persisted and reduced knot incidence by >50%. Our findings indicate that kasugamycin is an effective bactericide for controlling olive knot and that the time of any bactericide application after inoculation is critical in managing the disease
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Aminoglycosides
|2 NLM
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|a Anti-Bacterial Agents
|2 NLM
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|a Copper
|2 NLM
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|a 789U1901C5
|2 NLM
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|a kasugamycin
|2 NLM
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|a O957UYB9DY
|2 NLM
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| 650 |
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|a Oxytetracycline
|2 NLM
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| 650 |
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|a X20I9EN955
|2 NLM
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| 700 |
1 |
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|a Förster, H
|e verfasserin
|4 aut
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|a Adaskaveg, J E
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Plant disease
|d 1997
|g 102(2018), 5 vom: 01. Mai, Seite 892-898
|w (DE-627)NLM098181742
|x 0191-2917
|7 nnns
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| 773 |
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|g volume:102
|g year:2018
|g number:5
|g day:01
|g month:05
|g pages:892-898
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|u http://dx.doi.org/10.1094/PDIS-08-17-1162-RE
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