Recently, I have received a lot of calls from the owners of yellow jaw fish farming, they are talking about "small melon worms" and unscrupulous coming! So why should we be afraid of small melon worms? Find the answer in the article!
This should start from the yellow jaw fish itself, because the yellow jaw fish belongs to the scaleless fish, there is no scale protection, which is like we only wear a pair of "autumn pants" in the cold winter, so it is easy to be eroded by the outside world and the management negligence in the breeding process, the breeding density increases and other reasons lead to the frequent occurrence of diseases, bringing economic losses to breeding friends.
How harmful are small melon worms?
The harm of small melon worm disease is very large, the main outbreak period in early spring, late autumn and winter, generally parasitic on the surface and gills of yellow jaw fish, sucking fish body nutrients, stimulating the fish body to secrete a large amount of mucus, forming white pustules on the surface of the fish body, that is, small white spots seen by the naked eye. At this time, if you perform a microscopic examination, you can find a large amount of mucus on the gills and skin, and you can see a large number of small melon worms, and the yellow jaw fish is likely to be completely destroyed.
Why are small melon worms so difficult to deal with?
Yellow jawfish is a scaleless fish, there is no scale protection, there is a layer of mucus on the surface of the body, when the small melon worm parasitizes on the surface of the yellow jaw fish or gills, due to the obstruction of the mucus on the surface of the fish body, the product is difficult to play a role.
And now the insecticide is generally high toxicity, high irritation products, heavy metal ions and other products, especially for the yellow jaw fish this scaleless fish is harmful, because the yellow jaw fish on the drug tolerance is low, in the breeding pond when the insecticide is applied, the concentration is often not enough to kill the small melon worm, if the concentration is increased because of the high concentration to kill some small melon worms, but the fish are also killed. Therefore, once the small melon worms break out, it is difficult to deal with, and the good way is to do a good job of defense in advance.
How do we defend against yellowtail melon worms?
1, pay attention to water quality, water quality is thin water can be used organic fertilizer and beneficial bacteria to improve water quality, defense against the disease.
2. Normal use of potassium persulfate compound salt for bottom modification and disinfection;
3, regular use Lechang as a defense, Lechang green no medicine residue, do not hurt the fish and do not hurt the water.
4. Enhancing the physique of fish is also one of the ways to defend against small melon insects.
A customer feedback in Hubei, in mid-October, the outbreak of small melon insects, poor treatment after killing, while the fish is still open, happy 100 mixing, insist on use. Although the surrounding fish ponds suffered heavy losses, there were no casualties in their own fish ponds, and the insect pests gradually subsided after a return visit on October 28.