CATDOLL : CATDOLL: Issues and suggestions for raising silkworms (What issues should be paid attention to when raising silkworms)

1. 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%.

2. What are the silkworm breeding techniques and precautions?

1. First of all, the best time to raise silkworms is from April to May every year. In this season, you can buy silkworm eggs, which are silkworm eggs, outside. You can directly place the silkworm eggs on mulberry leaves.

2. Under normal room temperature in April and May, that is, between 20 and 25 degrees Celsius, silkworm ants will hatch into silkworm babies within two days.

3. When it hatches into a silkworm, it starts to eat by itself. The food that the silkworm eats is clean and fresh mulberry leaves, which means that the mulberry leaves collected must be washed and then fed to it.

4. However, it should be noted that silkworms cannot eat raw water, so the mulberry leaves should be washed and dried before feeding them.

5. The silkworms continue to grow while eating mulberry leaves. After the fourth molting, they begin to spin silk and make cocoons. Then they will break out of the cocoon!

3. What are the correct methods and techniques for raising silkworms?

1. Mulberry leaves should be picked, transported and stored properly. Try to pick leaves in the morning or evening, transport them as soon as they are picked, and pack them loosely for fast transportation. After the picked mulberry leaves are loosened, put them in the mulberry storage pool or mulberry storage room, and store them properly to prevent them from being blown away by the wind or piled up and heated and deteriorated, which will cause waste of mulberry leaves.

2. Prevent mulberry leaves from wilting. During the young silkworm stage, use a kang bed (room) and cover the mulberry leaves with plastic film to keep the temperature and moisture, so that the mulberry leaves remain fresh. During the adult silkworm stage, close the doors and windows appropriately after feeding the silkworms, and open the doors and windows for ventilation after the silkworms have eaten about 70% of the mulberry leaves, which can effectively prevent the mulberry leaves from wilting.

3. Ensure the temperature of the silkworm room. The suitable temperature for large and small silkworms is 24℃ and 25℃ respectively. Within the suitable temperature range, the silkworms have a strong appetite, which reduces the defective mulberry leaves and improves the leaf-silk conversion rate.

4. Promote less-return rearing and mulberry-strip rearing. Labor-saving silkworm rearing technologies such as flat three-dimensional rearing of small silkworms once a day, rearing of full-age silkworms twice, and rearing of large silkworms in mulberry strips not only improve the efficiency of silkworm rearing, but also help silkworms eat mulberry leaves, saving about 5% of mulberry leaves compared with ordinary rearing.

Additional information:

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. 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.

5. 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.

6. 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?

I hope my answer can help you.

Usually, silkworms are raised indoors on the ground and outdoors on scaffolds during the silkworm raising season. When raising silkworms, 5 ml of fermentation liquid can be added to one catty of water, and 10 catties of mulberry leaves can be sprayed to add food. Screen doors and windows should be installed in the silkworm room, and sick silkworms should be cleaned up in time. In spring and summer, the growth cycle of mulberry trees should be roughly the same to ensure an adequate supply of mulberry leaves.

How to raise silkworms

1. Rearing method: 4-5-year-old silkworms are in the adult stage, and the suitable growth temperature is 25 degrees. Silkworms have weak resistance to high temperature, humidity and carbon dioxide, eat a lot of mulberry leaves and excrete a lot. They can be raised on the ground indoors or on outdoor sheds.

2. After receiving the silkworm eggs, protect them in a suitable environment to allow the embryos to develop normally. The specific method is: in a disinfected silkworm room, spread the silkworm eggs flat on the silkworm plaque with the eggs facing upward. The room temperature should be 24℃ and the dry-wet difference should be 2-2.5℃ for the first 4 days. The room temperature should be 27℃ and the dry-wet difference should be 1.5-2℃ for the fifth to tenth days. When the embryos develop to the later stage and a small number of silkworm eggs are found to be blue dots, immediately cover the silkworm eggs with black cloth. After about 40 hours, that is, 4-5 o'clock before dawn on the third day, remove the black cloth, wrap the silkworm eggs with white paper, with the eggs facing upward, turn on the light to let the ants bite through the egg shells and hatch.

3. The main technical measures for raising silkworms are:

⑴ Improve the environment and ensure ventilation to prevent stuffiness.

⑵ Build a shed to provide shade and prevent hot air from entering the silkworm room.

⑶ The silkworm seats should be placed sparsely and low, and fed frequently and in small amounts.

⑷ Pay close attention to the management of the mulberry garden, ensure the quantity and quality of mulberry leaves at the fifth age, so that the silkworms can be well fed and eat well, and prevent the silkworms from eating old and hard leaves, too tender leaves, malnourished leaves, and leaves that lack water.

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 have weak resistance to various external interferences during their hibernation period, so it is important to pay attention to their protection during sleep.

When 95% of the silkworms have settled, fresh lime powder and silkworm medicine "Disease Prevention No. 1" should be sprinkled on them to prevent pathogens from invading. If a small number of silkworms do not eat mulberry and do not settle, it is because they have not found a place to settle. At this time, some mulberry leaves should be added to settle the silkworms 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 climate 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.

Silkworm breeding technology

1. Spray mulberry leaves to feed silkworms: add 5 ml of fermentation liquid to 1 kg of water, spray 10 kg of mulberry leaves to feed them, once a day. Silkworms love to eat, their feces are not smelly, they grow fast, their cocoons are thick and of good quality, and they can increase production by about 10%.

2. Spray the silkworms to cool down and relieve heat: In summer, the temperature is high, silkworms are prone to illness, and if the room temperature is too high, silkworms are prone to heatstroke and death. In hot weather, add 5 ml of fermentation liquid to one pound of water and spray it on the silkworms, once in the afternoon and once every day.

3. Spray mulberry leaves to keep them fresh: In summer, when the temperature is high, the collected mulberry leaves will turn yellow and deteriorate if they are piled for a long time. In autumn, when the climate is dry, the collected mulberry leaves will dry out and become hard if they are kept for a long time. You can add 5 ml of fermentation liquid to one pound of water, use it to wet the mulberry leaves, then put the mulberry leaves into a woven bag or pile them on the ground, cover them with plastic cloth, and they will remain as fresh and green as before after 24 hours.

4. Spray mulberry leaves to promote growth: add 1-2 ml of fermentation liquid to one pound of water, spray the mulberry leaves in the mulberry field, spray 2-3 times a month, add 0.2% potassium dihydrogen phosphate for better effect. Spray until the mulberry leaves are completely wet without dripping. Mulberry leaves grow fast, the leaves are green and thick, and the yield can be increased by 20-25%. It can also reduce diseases and insect pests.

Note: Antibiotics cannot be used 6 hours before and after using the Vitality 99 Fermentation Agent fermentation liquid. No matter how long the fermentation liquid is stored, as long as it still has a sweet and mellow aroma, it can be used. If it smells, it cannot be used.

Precautions for raising silkworms in summer and autumn

1. Prevent pesticide poisoning. During the silkworm-raising season, do not spray the farmland near the silkworm room with organochlorine pesticides such as dimethoate, as the fumigation effect 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.