Trash fish scavenger for shrimp and crab culture pond and preparation method thereof

The invention relates to the technical field of trash fish scavengers, in particular to a trash fish scavenger for a shrimp and crab culture pond and a preparation method thereof. The trash fish scavenger for the shrimp and crab culture pond at least comprises the following components in percentage by weight: 70-95% of derris root powder and 5-30% of a surfactant. The trash fish scavenger providedby the invention is safe to prawns and crabs in a prawn and crab culture pond, safe to aquatic plants and capable of quickly and thoroughly removing trash fishes. 本发明涉及杂鱼清除剂技术领域，具体涉及一种虾蟹养殖池的杂鱼清除剂及其制备方法。一种虾蟹养殖池的杂鱼清除剂，按重量百分比计，至少包括以下组分：鱼藤根粉70-95％、表面活性剂5-30％。本发明提供了一种虾蟹养殖池中对虾蟹安全，对水草安全，清除杂鱼快速、彻底的杂鱼清除剂。