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231225s1998 xx |||||o 00| ||eng c |
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|a 10.1094/PDIS.1998.82.4.397
|2 doi
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|a DE-627
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|a eng
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|a Scheck, Heather J
|e verfasserin
|4 aut
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|a Effect of Copper Bactericides on Copper-Resistant and -Sensitive Strains of Pseudomonas syringae pv. syringae
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|c 1998
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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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 Fourteen formulations of copper-based bactericides were evaluated for their efficacy in reducing populations of copper-resistant and -sensitive strains of Pseudomonas syringae pv. syringae growing on tissue-cultured lilac and of copper-sensitive strains of this pathogen on field-grown lilac. The amount of free cupric ions (Cu2+) in solution was the only predictor of formulation efficacy, but this variable could not be estimated from the metallic copper content of the product. Relative to nontreated controls, all copper-based bactericides reduced the population size of copper-sensitive strains by 50%, but only cupric hydroxide mixed with mancozeb or ferric chloride reduced the population size of copper-resistant strains by an equivalent amount. Several noncopper bactericides, including streptomycin-sulfate, caused only small reductions in bacterial populations on tissue-cultured or field-grown lilacs. In the field, two applications of cupric hydroxide (wettable powder) when plant growth stages were at dormant (mid-February) and delayed dormant (late February) provided better control than either one or no treatments
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|a Journal Article
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|a Pscheidt, Jay W
|e verfasserin
|4 aut
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|i Enthalten in
|t Plant disease
|d 1997
|g 82(1998), 4 vom: 28. Apr., Seite 397-406
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|x 0191-2917
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|g volume:82
|g year:1998
|g number:4
|g day:28
|g month:04
|g pages:397-406
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|u http://dx.doi.org/10.1094/PDIS.1998.82.4.397
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