CATDOLL : CATDOLL: What's the matter with the little red worm growing on the fortune tree?

What's up with that little red worm growing on the fortune tree?

The little red worm growing on the money tree is a red spider.

Red spider mites are one of the common pests of the fortune tree. When they are infested, they will suck the juice from the leaves and branches of the fortune tree, which will eventually cause serious damage to the chlorophyll. Yellow spots will gradually appear on the leaves, and as the infestation becomes more serious, the leaves will wither and fall off. Therefore, the harm is relatively large.

In the case of high temperature, high humidity and poor ventilation, red spiders reproduce very quickly, and in severe cases, they can cause plant death. Red spiders produce 7-8 generations a year, and damage begins in March and April, with serious damage in June and July. Plants should be regularly observed and inspected after the end of April.

Solution: For the solution to red spider mites, we first need to observe the severity of the pest. If it is not that serious, we can remove the insect leaves, disinfect them and place them in a well-ventilated environment. If the pest is serious, you can spray it with 1000 times diluted 50% cypermethrin emulsifiable concentrate.

Precautions

The prevention and control of red spider mites should be adapted to local conditions and adhere to the principle of "prevention first, comprehensive prevention and control".

1. Increase the application of organic fertilizer, reduce the use of nitrogen fertilizer, enhance tree vigor, and improve the plant's ability to resist pest invasion.

2. In hot and dry seasons, dig holes and water the plants in time to compensate for the water loss of the plants.

3. Strengthen pruning, improve the microclimate for plant growth, enhance the ventilation and light transmission of the plants, improve tree vigor, and reduce the chance of pest occurrence.

4. For plants with serious red spider mite infestation in the current year, scrape off the peeling bark, dead leaves, fallen leaves and weeds on the branches and trunks, and other overwintering places to eliminate overwintering female adults and eggs, and reduce the insect source base number.

Do wild crucian carp have parasites?

Yes. Crucian carp is the most common freshwater fish, widely distributed in ponds, ditches, streams, rivers, lakes, swamps and other water bodies except the Qinghai-Tibet Plateau. It has strong vitality and reproductive capacity. In fact, this is also the main reason why crucian carp is widely distributed and has a large number. Let's take a look at the parasites on crucian carp!

1. Tapeworm

Tapeworms are common intestinal parasites of crucian carp. The adult worms live in the intestines of crucian carp, and the larvae mainly parasitize invertebrates or use crucian carp as intermediate hosts. People who eat undercooked crucian carp meat with tapeworms may be infected with tapeworm disease, such as frequent mild abdominal pain, loss of appetite, itching around the anus, etc.

2. Uterine nematodes

The uterine nematode is a common parasite of crucian carp. It is also called red nematode because of its slender body and bright red color. It often occurs in May and June. It mostly parasitizes on the membrane between the fin rays of the caudal fin of crucian carp, and occasionally on the dorsal and anal fins. The body of the nematode is visible to the naked eye. It generally does not cause the death of the diseased fish, but it can cause bacterial and fungal infections.

3. Anchorhead

Anchorhead worm is a common parasite of crucian carp. The female worm parasitizes under the skin, fins or mouth of crucian carp, while the male worm generally does not parasitize. It is widely distributed in rivers, lakes, ponds and other water bodies across the country. It can be found all year round, especially in summer and autumn. When the water temperature is low, it will dive under the fish scales to hibernate, and begin to breed when the water temperature reaches about 15℃.

4. Ringworm

Dactylopius is a common parasite of crucian carp, which is mainly transmitted in the form of eggs and larvae. It is prevalent in late spring and early summer, especially in the Yangtze River basin. Large-scale infestation can cause mass death of fry and fish fingerlings. In addition to crucian carp, other hosts include goldfish, carp, grass carp, silver carp, bighead carp, sea bass, mandarin fish, and bighead carp.

5. Ichthyophthirius

Ichthyophthirius punctatus is a common parasite of crucian carp. In the early stage of infection, white spots are distributed on the chest, back, tail fin, and body skin. After a few days, the white spots cover the whole body. The fish loses the ability to move, often appears sluggish, floats on the water surface, swims slowly, and has a poor appetite. The course of the disease is generally 5 to 10 days. If not treated in time, it can cause mass deaths within a short period of time.

To sum up, the parasites of crucian carp can be divided into internal parasites and external parasites. Internal parasites will affect the growth of crucian carp, while external parasites will cause symptoms such as bleeding in the fish body. Common ones include tapeworms, uterine nematodes, anchorhead nematodes, ring worms, and Ichthyophthirius multilocus.

Crucian carp has parasites. Fish parasites can be divided into two categories according to the parts of the body: internal parasites and external parasites. Internal parasites refer to parasites in the internal organs, blood, intestines and other tissues of aquatic animals, such as various tapeworms, nematodes, Eimeria, schistosoma, etc.; external parasites refer to parasites on the body surface, gills, fins, etc. of aquatic animals, such as Dactylopius anguillochus and Anchorhead mullet. These parasites are easy to spread and are contagious quickly.

Additional information:

Crucian carp is an omnivorous fish that mainly feeds on plants. It likes to live in groups and chooses food. Its meat is tender and has high nutritional value. Every 100 grams of meat contains 13 grams of protein, 11 grams of fat, and a large amount of minerals such as calcium, phosphorus, and iron. Crucian carp has extremely high medicinal value. It is mild in nature and sweet in taste. It enters the stomach and kidneys and has the effects of harmonizing the middle and replenishing deficiency, eliminating emaciation, warming the stomach and eating, and replenishing the middle and invigorating vitality.

Crucian carp is widely distributed and is produced all year round in waters across the country. Crucian carp is the fattest from February to April and from August to December. It is one of the important edible fish in my country. The maximum body length is about 30cm. The habitat depth is 0 to 20 meters. It is non-toxic and an economical edible fish with good quality and low price. It is mostly produced in the Yellow River Basin and the Yangtze River Basin. The crucian carp in Erhai Lake is more famous.

Expand your knowledge:

Crucian carp (scientific name: Carassius auratus, referred to as crucian carp, commonly known as crucian carp seeds, moon crucian carp, native crucian carp, silver tung collapsed thin head, crucian carp, cold crucian carp, happy head, crucian carp shell, river crucian carp. Common in Eurasia, is a common freshwater fish belonging to the genus Carp of the family Cyprinidae, order Cypriniformes, subclass Actinopterygii.

Through artificial breeding and selection, many new varieties of crucian carp can be produced. For example, goldfish is an ornamental fish. Its scientific name is the same as the edible wild crucian carp, Carassius auratus.

Wild crucian carp is very likely to be infected with parasites, most of which are parasitic in the tail and abdomen of the crucian carp. If you want to eat it, it is recommended to check it carefully and cook it at high temperature for more than 10 minutes before eating.

I hope my answer will be accepted by you.

The scientific name of the red nematode is Mytotrichum uteri, which mainly occurs in crucian carp and carp. It is caused by the fish swallowing positive sword water fleas and mainly parasitizes under the fish scales and inside the fish tail. When I first saw this thing, I felt extremely uncomfortable. After returning home, I used scissors to peel off a piece of it. It was very disgusting and I instantly lost the idea of ​​enjoying the delicious crucian carp. But after learning more about it, I realized that there is actually no need to "change color when talking about worms". According to experts, this parasite has been found on the bodies of crucian carp and carp in many places in my country, and there are special prevention and control methods. Friends who are interested can go and learn more about it. Our focus today is mainly on whether crucian carp and carp infected with this worm disease can still be eaten.

In fact, this kind of parasite will not enter the fish meat. As long as the internal organs and fish scales are cleaned and the fish meat is fully heated, it can be eaten safely. The worms will be killed after heating. I removed the scales and tail of the fish, fried it first, and then stewed it. It is safer to eat haha! Although some parasites on fish are harmful to the human body, they are very rare, so there is no need to be too sensitive.