Bactericidal composition containing pyraclostrobin and difenoconazole and application thereof

The invention discloses a bactericidal composition containing pyraclostrobin and difenoconazole and an application thereof. The bactericidal composition takes pyraclostrobin and difenoconazole as main active ingredients, wherein the weight ratio of pyraclostrobin to difenoconazole is (1-70):(1-50). The bactericidal composition can be used for preventing the diseases of cereal, melon and fruit or vegetable crops, has relatively high synergistic effect, overcomes and delays the drug resistance of germs, and realizes high bactericidal speed and long duration while the application cost is reduced and the prevention effect is obviously better than that of using a single agent. The bactericidal composition disclosed by the invention can be used for preventing fungal diseases of crops and particularly can be used for preventing the fungal diseases such as downy mildew, sheath blight, false smut, scab, brown spot, glume blight, leaf blight, rust disease, powdery mildew, early blight, leaf spot disease, net blotch and the like of the cereal, melon and fruit or vegetable crops, and the effect is better than that of using a single agent.