Bactericidal composition containing picoxystrobin and flusilazole and application of bactericidal composition

The invention discloses a bactericidal composition containing picoxystrobin and flusilazole and an application of the bactericidal composition. The bactericidal composition uses the picoxystrobin andthe flusilazole as main effective ingredients, wherein a mass ratio of the picoxystrobin to the flusilazole is 1:50 to 50:1. The bactericidal composition disclosed by the invention can be applied to prevent and control diseases of cereals, fruit trees and vegetables, has a higher synergistic effect, overcomes and delays drug resistance of pathogenic bacteria, has a fast sterilization speed and a long lasting effect, reduces application costs, and has prevention and control effects significantly better than those of an individually-used single agent in the composition; and the bactericidal composition can be used for preventing and controlling fungal diseases on crops, in particular used for preventing and controlling fungal diseases such as leaf blotch of wheat, leaf rust, stripe rust, leaf spot disease, glume blo