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Blister Spot of Apple

Author
Burr, Thomas
Abstract
Blister spot is a disease of apple fruit caused by the
bacterium, Pseudomonas syringae pv. papulans (Rose)
Dhanvantari. Although over 20 cultivars of apple have been
reported as susceptible to the bacterium, the disease is
usually of economic importance only on Mutsu in New York
State. If uncontrolled, the disease generally affects 5 to 60
per cent of the fruit in an orchard. The bacterium does not
cause extensive decay of the fruit, but makes them unsuitable
for fresh market use.
Journal/Series
New York's Food and Life Sciences Bulletin 95
Date Issued
1982Publisher
New York State Agricultural Experiment Station
Subject
apple blister spot; apple blisters
Type
periodical