Bactericidal composition containing SYP-Z048 and JS399-19

The invention belongs to the field of pesticides, and concreatly relates to a bactericidal composition containing SYP-Z048 and JS399-19 as well as an application thereof. The composition is composed of an active component, a filling material and an auxiliary agent; wherein the active component is composed of SYP-Z048 and JS399-19. The composition has good prevention and treatment effects for a plurality of plant diseases due to ascomycetes, basidiomycetes and imperfect fungi, and can effectively control generation and harm of plant diseases such as botrytis cinerea, cucumber gray mold, tomato leaf mold, apple altermaria leaf spot, wheat scab, fusarium wilt of cotton, banana Panama disease, rice bakanae disease, watermelon fusarium wilt. The composition has wide bactericidal spectrum and obvious synergism, can reduce the usage amount, reduces the usage cost, and prolongs the resistance generation and development of pathogen to a single pesticide.