Sterilizing composition containing bismerthiazol and trifloxystrobin

The invention discloses a sterilizing composition containing bismerthiazol and trifloxystrobin. The effective component of the sterilizing composition is composed of bismerthiazol and trifloxystrobin according to a mass ratio of 50:1-1:50, and the sterilizing composition also comprises auxiliary components, which can be used in pesticide or are acceptable in pesticide. The provided sterilizing composition can be made into missible oil, micro emulsion, water emulsion, suspending agent, wettable powder, and water dispersible granule by reported methods. The bismerthiazol and trifloxystrobin are compounded according to a certain ratio, and a prominent synergetic effect is generated. The provided sterilizing composition can be used to treat and prevent diseases of crops, vegetable, and fruit trees such as leaf blight, streak disease, rust disease, seedling blight, downy mildew, and the like, and is especially effective for controlling powdery mildew.