Herba patriniae traditional Chinese medicine preparation for preventing and treating fish monocolonidae and application of herba patriniae traditional Chinese medicine preparation in aquaculture

The invention discloses a traditional Chinese medicine preparation for preventing and treating fish mononimus and application of the traditional Chinese medicine preparation in aquaculture, and belongs to the technical field of prevention and treatment of aquatic animal diseases. The traditional Chinese medicine preparation comprises a patrinia petroleum ether extract and/or a patrinia n-butyl alcohol extract and an auxiliary agent, wherein the optimal use concentration of the patrinia traditional Chinese medicine preparation is 4mg/L. According to the method, different polar solvents are adopted for extraction step by step, effective insecticidal components in the herba patriniae are separated out, and the herba patriniae is applied to prevention and treatment of parasites of aquatic animals for the first time. The insecticidal effect is remarkable, and the insecticidal rate can reach 93.5% within 96 h under the concentration of 4 mg/L. In addition, the traditional Chinese medicine preparation adopted by the