Phytoplasma disease “Bois noir” in Crimea: diagnosis of the pathogenNatalia Girsova, Natalia Aleinikova, Tatyana Kastalyeva, Yana Radionovskaya and Damir BogoutdinovBIO Web Conf., 25 (2020) 06004DOI: https://doi.org/10.1051/bioconf/20202506004