The invention provides a production method of
biopesticide, comprising the steps of sorting, dipping, enzymolysis and boiling. Specifically, the purchased Chinese herbal
medicine with the functions of sterilization, deinsectization and killing pests is separated according to grades; the obtained raw materials are dipped, boiled and / or performed with enzymolysis to take juice; mixed liquid
medicine is obtained by stirring, low-temperature squeezing and filtering as well as high speed
centrifugation; after high-pressure
filtration and concentration extraction,
biopesticide of which the
volume concentration is 30-40% is prepared; during dipping, the
raw material are dipped in a large
pool for 3-5 hours; during boiling, the
raw material are boiled at the temperature of 80-100 DEG C; and during high-pressure
filtration, mixed liquid
medicine is filtered under the pressure which is less than or equal to 100 kg to obtain the filtered liquid medicine. The
biopesticide prepared with the method of the invention has no
toxicity or harm on people and
livestock, does not damage nature, does not pollute environment, can replace chemical and
chemical industry synthetic pesticides used at present at home and abroad, can be used for sterilization, deinsectization and killing pests for crops and vegetables.