Fecha de publicación: 12/01/2021 Fuente: Wipo Tobacco Agriculture The invention relates to the technical field of organic pesticide preparation, in particular to a novel organic pesticide preparation method which comprises the following raw materials in parts by weight: 3%-7% of yellow tobacco, 3%-7% of sophora alopecuroide, 13%-17% of new wheat straw powder, 3%-7% of venenum bufonis, 3%-7% of garlic leachate, 3%-7% of ginkgo leaf juice, 3%-7% of mint powder, 3%-7% perilla powder and 34%-66% of water. The optimal weight ratio is as follows: 5% of yellow tobacco, 5% of sophora alopecuroide, 15% of new wheat straw powder, 5% of venenum bufonis, 5% of garlic leachate, 5% of ginkgo leaf juice, 5% of mint powder, 5% of purple perilla powder and 50% of water. The organic pesticide product prepared by the technology disclosed by the invention is low in production cost, wide in applicable crop range, strong in pesticide effect and good in pest control effect, the quality of agricultural products and forest products is improved, and remarkable economic benefits and ecological benefits are brought to agriculture and forestry production.