Use of environmentally safe preventive remedy against ascospherosis Aleksandr Ivanovich Liubimov, Svetlana Leonidovna Vorobeva, Elena Mullanurovna Kisliakova, Galina Iurevna Berezkina and Ekaterina Dmitrievna Mushtaleva BIO Web Conf., 17 (2020) 00032 Published online: 28 February 2020 DOI: 10.1051/bioconf/20201700032