Sterilization composition containing cyanoacrylate bactericide and metalaxyl-M

The invention relates to a sterilization composition containing cyanoacrylate bactericide and metalaxyl-M. The sterilization composition is prepared by carrying out binary compounding on effective components, namely the cyanoacrylate bactericide and the metalaxyl-M. The mass ratio of the cyanoacrylate bactericide to penconazole is 1-40 to 40-1; the mass percentage of the effective components, namely the cyanoacrylate bactericide and the metalaxyl-M, in the preparation is 1-80 percent; and other components are pesticidally allowable and acceptable auxiliary components. The sterilization composition can be in the form of missible oil, suspension agent, wettable powder, water diffusion particle, water emulsion, microemulsion, granules and micro capsules and can be used for preventing and treating downy mildew, phytophthora root rot, pythium, wheat gibberellic disease, cotton fusarium wilt, banana panama disease, fusarium moniliforme sheld, watermelon fusarium wilt and the like.