Prochloraz is a fungicide for preventing and treating fungal diseases, which can prevent and treat rice bakanae disease, rice blast, flax leaf spot, soybean anthracnose, brown spot, sunflower anthracnose, beet brown spot, citrus anthracnose, stem rot, chlorothalonil mold, cucumber anthracnose, gray mold, powdery mildew, litchi black rot, banana leaf spot, anthracnose, crown rot, fruit black rot and shaft rot.