The invention discloses a
pesticide, as well as a preparation method and application thereof, and belongs to the technical field of preparation of pesticides. The
pesticide comprises the following raw materials in parts by weight: 30-60 parts of Chinese arborvitae twigs and leaves, 30-60 parts of mint, 30-60 parts of lettuces, 30-40 parts of anabasis aphylla, 30-40 parts of
paulownia leaves, 30-40 parts of
sophora alopecuroides, 20-30 parts of
absinthium, 20-30 parts of yellow ginger, 20-30 parts of aloe and 1000-4000 parts of water. The
pesticide is prepared through the steps of extraction of liquid medicines, concentration,
drying, crushing, screening, sterilization and the like. The pesticide disclosed by the invention is non-toxic in ingredients, free from residues,
pollution-free and environment-friendly; the pesticide disclosed by the invention is simple in production method, low in cost, and good in application effect; the pesticide disclosed by the invention can effectively prevent and treat
plant pests including citrus
bud mites, aonidiella aurantii, papilionidae, leaf rollers and the like, the one-time kill ratio reaches 90.12% or above, and
drug tolerance is not caused.