Plant ash, copper sulfate, maple leaf, pine leaf and Qingtaijing can be used to prevent and control moss growing in fish ponds.

First, use plant ash.

Each acre of fish pond was covered with about 50 kilograms of moss from plant ash, which made it die without sunshine.

Second, use copper sulfate.

Use 0.5 kg of copper sulfate per mu, spread it all over the pond, focusing on the places densely covered with moss, and stir the moss with tools. Note: In the ponds where crayfish and crabs are cultured, the amount of copper sulfate should be reduced appropriately.

Third, use maple leaves.

Each mu of fish pond is covered with about 50 kilograms of maple leaves, covered with moss, and pressed to avoid floating. When maple leaves rot, water will turn reddish brown, so moss will rot in a few days.

Fourth, use pine leaves.

Soak pine leaves, grind and add water to make slurry, and pour 50 kilograms of slurry every day for about 2 days to remove moss.

V. Qingtaijing for prevention and control

There are two kinds of moss. One is biological preparation, the main component is Bacillus, which is the natural enemy of moss and kills moss through biological advantages. In addition, the main ingredient is sodium humate, which is a sunscreen cream. When it is used, it can be spread thinly in water, and the color is black, which can hinder the photosynthesis of moss and make it die.