Fenbuconazole is widely used as a systemic fungicide in agriculture, particularly for controlling a broad spectrum of fungal diseases in crops. It is effective against rusts, powdery mildews, leaf spots, and blights in cereals such as wheat, barley, and oats. It is commonly applied as a foliar spray or seed treatment, providing both protective and curative action by inhibiting ergosterol biosynthesis in fungal cell membranes. In addition to cereals, it is used on fruits, vegetables, and ornamental plants to manage diseases like apple scab, grape downy mildew, and black sigatoka in bananas. Its systemic nature allows it to be absorbed and distributed within plant tissues, offering long-lasting protection. Fenbuconazole is also valued in integrated pest management programs due to its efficacy at relatively low application rates and its compatibility with certain insecticides and herbicides.