The invention provides a prevention and treatment
pesticide for kanazawa spider mites on crops. The prevention and treatment
pesticide is prepared from a mixture of a setaira viridis extracting solution, a wild kiwifruit leaf extracting solution and an aquatic malachium
herb extracting solution; the prevention and treatment
pesticide can be widely applied to pretreatment and treatment of the kanazawa spider mites on
solanaceae,
cucurbitaceae, leguminous crops,
liliaceae, gramineae, malvaceae, jujubes and flowers. The prevention and treatment pesticide disclosed by the invention has the advantages that an extracting solution taking setaira viridis together roots, stems and leaves as raw materials, an extracting solution taking wild kiwifruit leaves as an extracting solution and an extracting solution taking the aquatic malachium
herb together with roots, stems and leaves as raw materials are mixed according to proportions to obtain the prevention and treatment pesticide for the kanazawaspider mites; then the prevention and treatment pesticide is diluted with water and the diluted prevention and treatment pesticide is sprayed onto the crops to realize a prevention effect when no diseases are found on the crops and a good
treatment effect is played on the crops when the diseases are found on the crops; through
field tests, the
cure rate reaches 100 percent, and piercing-sucking pests such as the kanazawa spider mites can be effectively prevented and treated; in addition, the setaira viridis, the wild kiwifruit leaves and the aquatic malachium
herb are wild plants and can be eaten, so that pesticide residues in the
actual use process can be avoided.