54results about How to "Expand the scope of insecticide" patented technology

The invention provides a non-polluted pesticide with pure traditional Chinese medicinal components. The pesticide is prepared from the following raw materials: raw radix stemonae, radix sophorae flavescentis, asparagus fern, smoked plum and asarum, wherein the raw materials are dried materials. The non-polluted pesticide with pure traditional Chinese medicinal components is prepared from human available traditional Chinese medicinal herbs serving as raw materials, is simple in components, good in compatible action, simple in preparation method, does not have toxic or harmful effect, pollution or residues on crops, does not pollute the environment, and has the advantages of high efficiency, quick response, long drug effect duration and wide pesticide range; effective components of the non-polluted pesticide have a killing effect to insect pests, are not toxic to human bodies, and have the effect of preventing diseases for crops; components in soil can kill insect pests in the soil, and can be used as fertility of crop growth. By adopting the non-polluted pesticide, the insect pests killed by the pesticide cannot cause secondary hazard to natural enemies of the insect pests, and components flowing into water cannot pollute the water source or poison aquatic lives, so that the natural environment and ecological balance can be facilitated. The invention also provides a method for preparing the pesticide and a method applied to crops.