Sterilization composition prepared from metconazole and isopyrazam and application of sterilization composition

The invention discloses a sterilization composition prepared from metconazole and isopyrazam and application of the sterilization composition. Metconazole and isopyrazam at the mass ratio of (1-90):(1-90) serve as the main effective ingredients of the sterilization composition. The sterilization composition has remarkable effects when applied in preparing pesticides for preventing and treating resistance plant fungal diseases, especially in preparing pesticides for preventing and treating net blotch, leaf blotch, scab, powdery mildew, the leaf spot disease, the rust disease, the stalk break, black stems and glume blight and especially in preparing pesticides for preventing and treating wheat rust and barley leaf blotch, and a high synergistic interaction effect can be generated; besides, the dosage of the mixture is greatly reduced compared with that of an independent active compound, in other words, the activity of the mixture is larger than that of independent components, and compared with single dosages, t