BIOCTILIS is a biological fungicide, in liquid formulation, whose active ingredient is Bacillus subtillis, the first one used as a biocontroller of soil pathogenic fungi such as Phytophthora, Fusarium, Rhizoctonia, Gaeumannomyces and Thielaviopsis among others, and of foliar pathogens such as Colletotrichum, Botrytis, and can also be used for soil improvement.