The results of the study of the dynamics of the development and spread of flax anthracnosis in the conditions of the western forest-steppe of Ukraine are presented. The influence of the stability of the variety and the abiotic factors on the damage of plants by the disease is established. It is studied and recommended for use in the breeding process as a starting material for creating resistant varieties for anthracnose: varieties Mogilevsky-2, Slavny, Taurneus B-35, Krisstall, Nike, K-6, Kievsky-2, Verin, Lintex, Milenium, Daros I, T. Tammes st 19, Arsen, Achay and hybrids 2527, AL-340, C-332, 405/4, № 340, 403/6.