Anti-parasite treatment in organic farming. This is a completely water-soluble aqueous solution of potassium silicate that can be used for all mineral treatments, especially tree paste. Silicate forms a hard inorganic film on plants; therefore obstructing the actions of low mobility parasites and offers a preventive action against insects that perforate the cuticle of leaves and fruits. It is now commonly used instead of waterglass to avoid adding sodium to the soil, also, the high potassium and silica content helps nourish the foliage.