Botanical fungicide and the preparation method thereof

The invention relates to a botanical fungicide and the preparation method thereof, which relate to a fungicide and the preparation method. The invention solves the shortcomings of the existing fungicide in severe environmental pollution and resistance due to long-term use. The botanical fungicide of the invention is made from stellera chamaejasme, liquorice, aconite and radix sophorae falvescentis. The method of the invention comprises the steps of: 1. weighing and mixing the stellera chamaejasme, liquorice, aconite and radix sophorae falvescentis; 2. leaching the ethanol; 3. filtering; 4. distilling; 5. moist heat sterilization. The botanical fungicide of the invention has the advantages of innocuity, low residuals, small dosage, no pollution, no resistance, strong bacteriostatic activity, high selectivity, diversified raw material sources, easy match with other biological pesticides, etc. The method of the invention has the advantages of simple process, and low cost. Compared with the chemical agent, the Chinese herbal medicine fungicide has the advantages of many active sites, long agent duration, high degradation speed, small pollutions to the environments, etc.