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Characteristic symptoms in apple trees show growth retardation from Muju (A), small leaves and leaf curling from Bonghwa (B), small leaves from Bonghwa (C), growth retardation and leaf chlorosis from Bonghwa (D), growth retardation from Yesan (E), small leaves and growth retardation from Yesan (F), small leaves and shortened internodes from Bonghwa (G), and small leaves and leaf curling from Boeun (H).
