13.07.2015 Views

Of Stone Fruit Bacterial Pathogens - Cost 873

Of Stone Fruit Bacterial Pathogens - Cost 873

Of Stone Fruit Bacterial Pathogens - Cost 873

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Pseudomonas syringae pv. morsprunorum - Bacteriacanker of stone fruits, blossom blast, gummosis, leaf spotof stone fruits• Canker phase on shoots, branches and limbsmost important.• Leaf scar infection and dispersal by rain splash.Hail storms favor the leaf spot phase.• Copper resistance not yet observed• Field resistance of P. avium, P. cerasus and P.avium × P. cerasus, towards bacterial cankerlow, high and very high, respectively• Two races (based on phage typing) with somehost specificity can be discriminated with rep-PCR. Ecological significance?

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