Dispersible trichoderma asperellum oil suspending agent and preparation method thereof

The invention relates to a dispersible trichoderma asperellum oil suspending agent and a preparation method thereof, belonging to the technical field of a suspending fungicide and aiming at solving the technical problem that existing trichoderma asperellum cannot be stored for a long time. The dispersible trichoderma asperellum oil suspending agent comprises trichoderma asperellum conidia powder, an emulsifier, a stabilizer, a wetting dispersant, an antioxidant, a thickener, an ultraviolet protective agent, a preservative and plant oil. The dispersible trichoderma asperellum oil suspending agent is prepared by the following concrete steps: (I) adding the emulsifier, stabilizer, wetting dispersant, antioxidant, thickener, ultraviolet protective agent and preservative into the plant oil, premixing through a magnetic stirrer, and then processing for 10min-30min in a homogenizer or a high-speed shearing machine to obtain a mixture; and (II) mixing the mixture with the trichoderma asperellum conidia powder at room temperature, and grinding for 10-60 minutes. The dispersible trichoderma asperellum oil suspending agent is less in usage amount, not only is suitable for disease control of tall trees of forests in high mountains with drought, but also has the characteristics of being environmentally friendly, free from resistance, harmless to human and livestock and the like.