CATDOLL : CATDOLL: What are the precautions for raising silkworms? (10 points)

1. What should I pay attention to when raising silkworms? When should I change the mulberry leaves? When does it mean that the silkworms are sick?

The ant silkworms are very small and have dark black bodies. When feeding them mulberry leaves, it is best to pick the tender mulberry leaves and cut a small section with scissors to facilitate the ant silkworms to eat. When the ant silkworms grow up a little, the mulberry leaves do not need to be cut, but the tender leaves are still the main ones to facilitate the silkworms to eat. They are now slightly white. Because the mulberry leaves are tender, they dry quickly, so pay attention to adding leaves in time.

The silkworms eat more vigorously, grow faster, and have a good appetite, so they are more likely to shed their skin. That is, the silkworms do not move much, and then begin the process of shedding. Don't think it is sick and rub it.

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After the fourth molting, the silkworm's body has become more transparent and is ready to start spinning silk. After about 5 days, the cocoons can be harvested.

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Silkworms basically spend their entire lives eating. For those who raise silkworms in cities, the most troublesome thing is the mulberry leaves. If there are some in the garden, it is best to pick them. If not, you can buy them online or in the local market. Before feeding mulberry leaves, please be sure to wash the leaves, wipe them dry and then feed them to the silkworms. This will prevent diarrhea and even death.

If it is difficult to get mulberry leaves, you can go out and pick them, pack them up, sprinkle some water on them and put them in the refrigerator to keep them fresh. This way, the silkworms can eat mulberry leaves every day. If there are really no leaves, you can also feed them some vegetable leaves, such as camphor leaves or lettuce leaves.

If you find that silkworms are not allowed to eat for several consecutive days, and it is a collective state, then you should pay attention to two issues. One is the hygiene of the mulberry leaves, whether they are washed clean, whether there are pesticides, etc. The other is whether the mulberry leaves have moisture and are not wiped dry, which makes the silkworms sick. If none of these are present, you need to consider the surrounding environment. Too fragrant, too humid, or too dry is not good. Young silkworms have strong resistance to high temperature and humidity. Generally, the silkworm room is maintained at 25-28℃ and the relative humidity is 75%-80%. Adult silkworms are suitable for an environment with slightly lower temperature and humidity and good ventilation. Generally, the silkworm room is maintained at 23-24℃ and the relative humidity is 60%-70%.

2. What should we pay attention to when raising silkworms?

Things to note when raising silkworms

1. The silkworms are very small and have dark black bodies. When feeding them mulberry leaves, it is best to pick the tender mulberry leaves. It is also best to cut a small piece with scissors to make it easier for the silkworms to eat.

2. When the silkworms grow up a little, the mulberry leaves do not need to be cut, but the tender leaves are still the main ones, which is convenient for the silkworms to eat. They are now slightly white. Since the mulberry leaves are tender, they dry very quickly, so pay attention to adding leaves in time.

3. The silkworms eat more vigorously, grow faster, and have a good appetite, so it is easy to reach the time of molting. That is, the silkworms do not move much, and then begin the process of molting. Don't think it is sick and rub it.

4. After the fourth molting, the silkworm's body has become more transparent and is ready to start spinning silk. After about 5 days, the cocoons can be harvested.

5. Silkworms basically spend their entire lives eating. For those who raise silkworms in cities, the most troublesome thing is the mulberry leaves. If there are some in the garden, it is best to pick them. If not, you can buy them online or in the local market. Before feeding mulberry leaves, please be sure to wash the leaves, wipe them dry and then feed them to the silkworms, so that they are not prone to diarrhea or even death.

6. If it is difficult to obtain mulberry leaves, you can go out and pick them, pack them up, sprinkle some water on them and put them in the refrigerator to keep them fresh. This way, the silkworms can eat mulberry leaves every day. If there are really no leaves, you can also feed them some vegetable leaves, such as camphor leaves or lettuce leaves.

7. If you find that silkworms are not allowed to eat for several consecutive days, and it is a collective state, then you should pay attention to two issues. One is the hygiene of the mulberry leaves, whether they are washed clean, whether there are pesticides, etc. The other is whether the mulberry leaves have moisture and are not wiped dry, which will cause the silkworms to get sick. If none of these are present, you need to consider the surrounding environment. Too fragrant, too humid, or too dry is not good. Young silkworms have strong resistance to high temperature and humidity. Generally, the silkworm room is maintained at 25-28℃ and the relative humidity is 75%-80%. Adult silkworms are suitable for an environment with slightly lower temperature and humidity and good ventilation. Generally, the silkworm room is maintained at 23-24℃ and the relative humidity is 60%-70%.

3. What are the ten taboos in silkworm breeding?

1. When raising silkworms, it is taboo to put children's shoes in front of the bed after they go to sleep, and the adults in the family must keep the shoes away.

2. During the silkworm-raising season, the silkworm house is marked with red paper with the words "nurturing silkworms" or "knowing etiquette in the silkworm month" and posted on the door, or peach branches or camellia flowers are planted next to the silkworm house, which are said to avoid "conflicts". In some places, silkworm farmers often put straw curtains under the corridor and plant willow branches at intervals to indicate that silkworms are prohibited.

3. People believe that silkworms are extremely delicate and sacred, and therefore extremely spiritual animals, and that they can be harmed if not handled with care. The Huzhou Prefecture Records during the Qianlong period of the Qing Dynasty quoted the Wuxing Silkworm Book, which pointed out this point vividly: "Silkworms must be prevented from disease at all times from childhood to old age. Silkworms are commonly known as worry insects, and if they are sick, the harvest will be poor."

4. The custom of raising silkworms has existed in China for more than 2,000 years. From the Shang and Zhou Dynasties to the Qin and Han Dynasties and up to the Ming and Qing Dynasties, the state has included the Silkworm God in the sacrificial ceremonies. The people are even more pious in their sacrifices to the Silkworm God and dare not neglect them.

4. What should we pay attention to when raising silkworms?

Details to pay attention to when raising silkworms

1. Remove sand before dormancy. This is to avoid excessive accumulation of silkworm feces, which can easily breed and spread pathogens and invade the silkworms during their dormancy.

2. Silkworms do not eat or move during the dormant period. They mainly rely on the nutrients absorbed by eating mulberry before dormancy to maintain their life activities. Therefore, they must sleep when they are full. If you stop feeding mulberry too early, they will starve to sleep. Starved silkworms are weak in constitution, poor in resistance, and prone to illness.

3. Silkworms are less resistant to external interference during their dormancy, so you must pay attention to their protection during dormancy. When 95% of the silkworms have fallen asleep, sprinkle them with fresh lime powder and silkworm medicine "Disease Prevention No. 1" to prevent pathogens from invading. If a small number of silkworms do not eat mulberry and do not sleep, it is because they have not found a place to sleep. At this time, add some mulberry leaves to help them sleep in batches.

4. Silkworms are temperature-changing animals, and their adaptability range is 20-30℃. In the spring silkworm period, the climate is often low and humid, so the focus is on replenishing warmth and removing moisture. In the summer silkworm period, the climate is hot and humid, so the focus is on cooling and removing moisture, keeping the air in the silkworm room flowing, and removing the stuffiness. In the autumn silkworm period, if the weather is hot and dry, it is necessary to replenish moisture indoors and combine disinfection, that is, spray the ground and walls with fresh lime powder and bleaching powder; you can also hang a wet cloth on the silkworm rack to keep the silkworm room moist to prevent the silkworms from having difficulty molting or half molting.

5. What should we pay attention to when raising silkworms?

Summer and autumn silkworm breeding should pay attention to

1. Prevent pesticide poisoning. During the silkworm-raising season, do not spray organic pesticides such as dimethoate in the silkworm room and the fields near the mulberry fields, as the smell will cause poisoning to the silkworms; mulberry leaves should be fed to the silkworms only after they have been tested and confirmed to be non-toxic.

2. Mosquito-repellent incense or mosquito repellent or insecticide is prohibited in the silkworm room. If it is used in the house near the silkworm room, the doors and windows of the silkworm room should be closed to prevent the silkworms from being poisoned.

3. Screen doors and windows should be installed in the silkworm room to prevent flies from entering the room and harming the silkworms, and "silkworm fly killing" emulsion should be added or sprayed on the silkworm bodies to kill the maggots.

4. Before raising silkworms, rat holes should be blocked, silkworm racks should be kept at a certain distance from the wall, and lime powder or silkworm medicine should be sprinkled around the legs of the silkworm racks to prevent rats from climbing up. When raising silkworms, drugs should be used to kill rats.

5. In summer and autumn, the temperature is high when raising silkworms. Open doors and windows to increase indoor ventilation. Spraying mulberry leaves with clean water and using electric fans to blow breeze indoors can also help cool down the room.

6. If sick silkworms are found, they should be cleaned up in time and placed in a disinfection basin filled with bleach solution or lime slurry. It is forbidden to feed sick silkworms to livestock and poultry to prevent the spread of pathogens and pollute the environment.

7. Silkworm feces contain a large amount of pathogens. Do not spread them out to dry around the silkworm room. Instead, compost them in a pile outdoors or in a manure pit to prevent the spread of pathogens.

8. In summer and autumn, the temperature is high and pathogens multiply quickly. Pay attention to picking leaves on demand, transporting leaves in time, and storing leaves properly. The mulberry pool should be disinfected once for each age, and do not feed mulberry leaves overnight.

9. Avoid feeding wet leaves in hot and humid weather. Do not water the stored mulberry leaves. Remove sand frequently and sprinkle more fresh lime powder, dry straw and other materials to inhibit the growth and reproduction of pathogens.

10. When it is not the silkworm-raising season, do not store grains, bran and other items in the silkworm room to avoid moisture and the generation of mites, which will harm the silkworms during breeding.

Additional information:

Five common misunderstandings about the use of drugs in silkworm rearing In recent years, many silkworm farmers have used excessive and unconventional drugs in the prevention and treatment of silkworm diseases, which has resulted in drug poisoning of silkworms and aggravation of the disease, causing unnecessary losses in silkworm production. The author introduces the five common misunderstandings about the use of drugs in the silkworm rearing period as follows for reference by silkworm farmers.

1. The misunderstanding of using drug carriers is to spray silkworm medicine on mulberry leaves to add food to silkworms. Mulberry seedling planting technology and mulberry tree disease and insect pest control should be sprayed (sprinkled) on silkworm bodies, silkworm seats, and silkworm webs, which should be determined according to the disease type and drug type. But the actual situation is that drug carriers are often confused. For example, "Fangjiangling No. 2" is often sprayed on mulberry leaves by some silkworm farmers as a food drug, which often leads to poisoning and death of silkworms. And "Chloramphenicol for Silkworms" and "Kanjun Bacteria" that should be used to add food are often used on silkworm bodies, which is not only ineffective but also misses the best time to prevent and control silkworm diseases.

2. Misunderstandings in drug selection Some silkworm medicines are quite similar in appearance and color, and are often used incorrectly. "Big Silkworm Disease Prevention No. 1" and "Small Silkworm Disease Prevention No. 1" are only one letter different, both are bagged powders, but the concentration of the active ingredient - formaldehyde is significantly different, the former is 2.5%, and the latter is 1.25%. If they are used in reverse, it will cause drug damage to small silkworms and poor effect on large silkworms. According to the Agricultural and Forestry Network, "Fangjiangling No. 2" and "Mi Canfei" are often mixed because of their similar colors. More silkworm farmers do not know the efficacy of silkworm medicines and cannot choose the right medicine when selecting. What's worse, because they think the medicine is not strong enough, they mix and use multiple silkworm medicines, which actually promotes chemical reactions between the medicines, making the silkworm medicine lose its original efficacy and even causing drug damage. For example, "Fangbing No. 1", "Mi Canfei", "Fangjiangling No. 2" and other alkaline drugs such as lime powder should not be mixed at the same time.

3. Misunderstandings about the timing of medication. For example, when using lime powder during the dormancy period, there is no time distinction. Some people use it until the late dormancy period, causing the silkworms to molt half or not at all. "Anti-rigidity powder" works best when used before feeding at the beginning of the instar, but some silkworm farmers use it at the end of the instar when the silkworms are about to dormancy.

Fourth, the misunderstanding of the dosage of medicine is often manifested in insufficient dosage, excessive dosage, insufficient or too frequent dosage. For example, the dosage of "Ultra-Clean" fumigant used in the young silkworm stage is confused with the dosage used for disinfection before silkworms are killed, and 5 grams are used per cubic meter of space instead of 1 gram. In addition, when preventing and treating silkworm fly maggot disease, some people use "silkworm fly killing" once in the fifth instar of silkworms and think that it is enough, resulting in countless maggot holes and silkworms when collecting cocoons.

5. Mistakes in drug preparation: Drug preparation is based on guesswork and the concentration of the original drug is not taken into account, resulting in a high or low concentration. For example, when preparing bleaching powder to prevent stiffness, the effective chlorine concentration should be 2% for young silkworms and 3% for adult silkworms. However, in the prevention and control of silkworm diseases, the phenomenon of excessive effective chlorine concentration causing poisoning and death of adult silkworms occurs in almost every region and every season.

6. What three points should we pay attention to when raising silkworms?

1: Environmental hygiene must be qualified and attention should be paid to sterilization

2. Don’t plant silkworms too densely

3: Feed in time to maintain nutrition