BANISH - 32 oz conc - SGBAN32This oustanding fungicide uses the power of Geraniol, a natural geranium oil plant extract, to control common mildews in plants. BANISH works in a two fold process to prevent mildew growth and heal plants from the cell up. Mildews first appear as spores at the plant surface; from there they send out tubes that grow and feed off the host plant's nutrients. The Geraniol in BANISH works by creating an unbalance of potassium (K+) ions in the mycelium.