The invention discloses a fungicide preparation, which includes an extract and/or isolate of Galena Africana; and mono-propylene glycol as a solvent and/or SAS as surfactant and/or polysuganate as a mild anionic surfactant. The extract and/or isolate may be KB05. The preparation may include mono-propylene glycol as a solvent for KBO5 and if kept anhydrous, the KBO5 remains stable in the mixture. The mixture may act as a low hazard stable source of KBO5 that can be mixed with the desired anionic surfactant and water to make formulations suitable for various applications. The preparation may include SAS as surfactant for producing stable solutions/micro emulsions of KBO5 in combination with propylene glycol.