Bicarbo is an alkaline salt. When applied in solution on vegetation, it reacts by raising the pH of the leaf surface, creating an inhospitable environment for fungi. In addition, the increased osmotic pressure on leaves stops the germination of the spores. It is used on grape, vegetables, small fruits and ornamental plants, and against powdery mildew, mildew, storage moulds (Penicillium), scab of pomaceous. It also acts as an herbicide against mosses of the genus Lunaria.