Tea meal is widely used in fish ponds clear pond, and rice paddies and high-grade lawn insecticidal, earthworm, cutworms, and other insect pests. As a kind of green tea meal drugs, it can automatically, non-toxic residual, no effect to human body, the use of safe. The second is not kill weeds, effect on aquatic plants and growth. Third, shrimp, crab larvae has no side effects, in breeding shrimp seedlings and cultivate young crab pond yield.