Abstract ‘Liberty,’ which was tested under the number NY55140-19 is a good quality red apple that can be grown without fungicidal sprays in New York State (3). It is highly resistant to Venturia inaequalis (Cke.) Wint., apple scab, and to Gymnosporangium juniperivirginianae (Schw.), cedar apple rust and resistant to Podosphaera leucotricha (E. & E) Salm, apple powdery mildew, and Erwinia amylovora (Burrill) Bergey et al, fire blight.
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Lamb et al. (1979) studied this question.
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