Fish mo worry | What should we do in the face of a 90% incidence of cupworms in the California perch seedling stage?

Cupworm disease is caused by protozoal infections of the genus Cupworm, commonly ovate, tubular and deformed cupworms. The disease mainly occurs in cultured water bodies with high culture density and rich organic matter, and the insect body often parasitizes on the gills and skin of fish, and the seed stage is mostly parasitic on the surface of the fish, especially in the tail fin. It is generally popular from April to May, and mainly harms seedlings under 5 cm.

The pathogen of Calvary cathodecoccosis is goblet worm, parasitized on the surface of fry and species, and the infection rate is as high as 90% to 100% at the time of onset, which can cause death.

Symptoms of infection:

When cupworms are infected with California perch seeds, clusters of parasitic clumps on the skin, gills, fins, etc. of fish, often causing tissue inflammation, resulting in a large amount of mucus secretion, body surface, fin adhesion is cotton flocculent; the fish body is emaciated, blackened, and the seed activity is abnormal, that is, floating on the surface of the water or swimming slowly, breathing difficulties, such as floating heads, which can cause seed death in severe cases; a large number of cupworms can be seen on microscopic examination;

Precautions:

1. Clear the pond for disinfection.

2. When stocking fish fingerlings, soak them with 1% to 2% salt water for 3 to 5 minutes;

3. Strengthen daily management, pay attention to water source cleanliness, and maintain good water quality;

4, each month to mix the ingredients to serve Le Chang eucalyptus essential oil.

Longchang Le Chang Eucalyptus Essential Oil is a green product of insect double resistance, extracted from the leaves of wild Australian multi-bract eucalyptus, rich in natural active substances 1,8-eucalyptus and monoterpenes, sesquiterpenes, alcohols, esters, aldehydes and ketones and other repellent ingredients, which have a significant avoidance effect on parasites. At the same time, Lechang also has antibacterial and anti-inflammatory effects, which can inhibit harmful bacteria in the intestine, reduce the breeding of harmful bacteria, and improve intestinal health; it can also inhibit the secondary infection of wounds caused by parasitic bites, reduce bacterial complications, and make the intestinal surface of the fish intact as before. Lechang breaks the traditional concept of insecticidal, plant ingredients to drive away the killing, in order to prevent the treatment, in aquaculture, sporangia, wheelworms, small melon worms, spore worms, cupworms, anchorhead bream, ringworms, ciliates and so on can be well controlled and controlled.

Only by doing a good job in the prevention and control of parasites and reducing the occurrence of diseases can california perch lay a good foundation for improving the survival rate of the seedling stage.

For more information, please pay attention to the WeChat public account: California Perch Frontier.