Zealous Fungicide is composed of plant extracts. It is applied to the leaves and soil and is effective against Powdery Mildew diseases and other mildew diseases in the order Erysiphales. Zealous utilizes our patented essential oil formulation. This allows for a wide application range covering all parts of the plant and soil areas. Zealous works on Ascomycete fungi, Peronospora, Pseudoperonospora, Bremia, Plasmopara, and Basidiophora. These pathogens cause extreme crop losses across an extensive crop range. Zealous provides superior control for active issues while providing protection for a period of time dependent on weather.