Composition of zhongshengmycin, pyrimethanil and bromothalonil and application thereof

The invention discloses a composition of zhongshengmycin, pyrimethanil and bromothalonil and application thereof. The weight ratio of zhongshengmycin to pyrimethanil to bromothalonil is 1:5:(3-30), and the composition comprises the following components by weight: 0.1 to 2 percent of zhongshengmycin, 0.3 to 30 percent of bromothalonil, 0.5 to 10 percent of pyrimethanil, 1 to 8 percent of an auxiliary agent and 50 to 96.9 percent of a carrier. After zhongshengmycin, bromothalonil and pyrimethanil are compounded, as a good synergetic effect exists among zhongshengmycin, bromothalonil and pyrimethanil, the prevention and treatment effect of the compounded zhongshengmycin, bromothalonil and pyrimethanil is obviously superior to that of any two of the three on the premise of similar effective doses, and is more superior to that of any one of the three; on the other hand, the inventor finds that the doses of the three are obviously reduced during compounding after doing a large number of experiments, the composition