Fenpropidin solution is widely used as a fungicide in agriculture, particularly for controlling powdery mildew and other fungal diseases in crops such as cereals, fruits, and vegetables. It works by inhibiting fungal ergosterol biosynthesis, which is essential for cell membrane integrity, leading to the suppression of pathogen growth. Due to its systemic and translaminar properties, it effectively penetrates plant tissues and provides both preventive and early curative action. Fenpropidin is often favored in integrated pest management programs because of its selectivity and lower impact on beneficial organisms. It is commonly applied through foliar sprays and is effective at relatively low application rates, making it a cost-efficient option for disease control in various farming systems.