The water grass floats on the water. Causes: (1) Due to the undeveloped roots of water plants, the soil is not deep enough to be grasped, and when the water level rises, the floating phenomenon of water plants tends to occur. (2) If there is a large number of rootless plants floating on the surface of the water, it may be caused by water crabs on the bottom of the pool.
Treatment methods: (1) artificially bury the grass roots on the bottom of the pond and sprinkling aquatic eco-fertilizers at the growing areas of the plants. Using them once a week, the plants can float without being rotten, and they can promote new roots. (2) When seeing a large number of crabs in a pond, the amount of feed should be increased, and fresh feed such as snails can also be put on. In addition, a variety of vitamins can also be added to the feed to reduce crab clippings. Grass phenomenon.
Causes of water grass weevil: June-August, due to hot and humid weather, bittergrass grow faster, this time the water plants will grow a black bug, the pain grass growth will be destroyed, the body of the leftover grass It floats on the surface of the water, destroys the breeding environment of crab ponds, and reduces the dissolved oxygen content of water bodies.
Treatment method: (1) Spray avermectin with a sprayer. The crabs cannot be used during clam shelling. (2) Vitamin C and vitamin E etc. are added to the feed to reduce the phenomenon of crab grass clippings, and to sprinkling aquatic eco-fertilizer to protect Vallisneria and promote its rapid growth.
Treatment methods: (1) artificially bury the grass roots on the bottom of the pond and sprinkling aquatic eco-fertilizers at the growing areas of the plants. Using them once a week, the plants can float without being rotten, and they can promote new roots. (2) When seeing a large number of crabs in a pond, the amount of feed should be increased, and fresh feed such as snails can also be put on. In addition, a variety of vitamins can also be added to the feed to reduce crab clippings. Grass phenomenon.
Causes of water grass weevil: June-August, due to hot and humid weather, bittergrass grow faster, this time the water plants will grow a black bug, the pain grass growth will be destroyed, the body of the leftover grass It floats on the surface of the water, destroys the breeding environment of crab ponds, and reduces the dissolved oxygen content of water bodies.
Treatment method: (1) Spray avermectin with a sprayer. The crabs cannot be used during clam shelling. (2) Vitamin C and vitamin E etc. are added to the feed to reduce the phenomenon of crab grass clippings, and to sprinkling aquatic eco-fertilizer to protect Vallisneria and promote its rapid growth.
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