TY JOUR TI FIRST REPORT OF MARSSONINA CORONARIA (ELLIS & DAVIS) DAVIS ON AN APPLE TREE IN SOUTHERN RUSSIA KW apple blotch KW Marssonina coronaria KW morphological and cultural characteristics KW artificial infection JO Bulletin of KSAU AU Yakuba, G.V. AU Nasonov, A.I. AU Ustyugova, E.V. AU Shamray, V.A. AU Garezin, I.A. PY 2024 IS 0 PB Krasnoyarsk State Agrarian University