Bactericide composition for preventing and treating persea americana stem-end rot

The invention belongs to the technical field of pesticides, and particularly relates to a bactericide composition for preventing and treating persea americana stem-end rot. The invention relates to a bactericide composition for preventing and treating persea americana stem-end rot. Active ingredients of the bactericide composition are formed by binary compounding of pyridine bacteria amide, myclobutanil, mancozeb or trifloxystrobin according to the mass ratio of (1-150): (150-1). According to the pesticide composition, the pyridine bacteria amide is compounded with various existing pesticide components, a compounding formula of the pyridine bacteria amide and myclobutanil, mancozeb or trifloxystrobin is screened out, the pesticide composition has a synergistic effect on inhibition of growth of pathogenic bacteria hyphae causing the avocado stem-end rot, the prevention and treatment effect on the avocado stem-end rot can be improved, and the pesticide composition can be used for preventing and treating the avo