FIELD: agriculture. SUBSTANCE: invention describes composition eliciting synergetic activity in regards with lesions of plants with sicknesses and comprising at least two active substances as components with acceptable carrier. Component I represents fludioxanil and component II represents triticonazole or cyproconazole being components I and II are used in the mass ratio providing their synergetic effect. Invention describes also method of protection of plants against phytopathogenic sicknesses involving treatment of plants, part of plants or medium of environment with component I and component II in common with acceptable carrier in any sequence or simultaneously and components I and II are used in the mass ratio providing their synergetic effect. Invention provides synergetic effect. EFFECT: enhanced effectiveness of composition. 9 cl, 3 ex
