Detection and identification of “black foot” pathogens of grapes in Crimea Natalia V. Aleinikova, Yevgenia S. Galkina, Elena A. Bolotianskaya, Natalia V. Arshava and Kira N. Bozhko BIO Web Conf., 53 (2022) 04002 Published online: 10 November 2022 DOI: 10.1051/bioconf/20225304002