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Colony morphology and virulence of strains EW220 and JNT1111 on pear shoots (P. pyrifolia cv. ‘Hohsui’). (A) Colony morphology in potato dextrose agar (PDA) medium (28 °C, 4 days); (B) pear shoots unwound-inoculated with colonized plugs of the tested strains photographed at 60 dpi.
