1. What is the best way to prevent diseases in silkworm breeding?1. The basic principle of silkworm disease prevention and control is prevention first, combined with fire prevention. 2. Choose the correct method of use according to the disinfectant: Silkworm houses, utensils, environment, etc. should be soaked or sprayed with clarified bleach containing 1% effective chlorine for disinfection, and kept moist for more than half an hour. 3. Pay attention to disinfection work at all stages of silkworm rearing. 1. Clean and disinfect before raising silkworms. Clean, dry and disinfect the silkworm room, silkworm tools and environment about a week before raising silkworms. 2. Disinfection at each age: Regularly disinfect the silkworm room, its interior and exterior and the environment with drugs; use "3.7" bran (3 parts lime mixed with 7 parts charred bran) to disinfect the eye silkworms at each age; use silkworm body and silkworm seat disinfectant to disinfect the silkworm bodies when starting silkworms (use bleaching powder containing 2% effective chlorine to prevent silkworm stiffness for silkworms starting from 1-3 ages, and use bleaching powder containing 3% effective chlorine to prevent silkworm stiffness for silkworms starting from 4-5 ages); put sick, weak silkworms and silkworms that do not make cocoons into disinfection tanks in time, and bury them in pits dug in batches; remove silkworm feces diligently during the adult silkworm period, and spread lime and other drying materials to keep the silkworm seats dry; do not throw or place silkworm feces at random at all ages, but dig pits and bury them in batches for high-temperature fermentation. 3. Disinfection immediately after silkworms are harvested: After the cocoon harvesting is completed each season, the silkworm rooms and silkworm tools should be disinfected, washed, dried and collected. 2. What are the main contents of silkworm breeding and silkworm disease prevention and control?Silkworm diseases used to be mainly caused by midgut pus disease and hollow-head softening disease. Currently, due to the differences in silkworm rearing time and climatic conditions, blood-type pus disease, stiffness disease and other silkworm diseases are the main ones. 1. Blood-type pus disease (commonly known as crawling silkworms, grandmother silkworms) The virus of blood-type pus disease parasitizes in the blood of sick silkworms. The blood of healthy silkworms is colorless and transparent, while the blood of sick silkworms is milky white, so sick silkworms are also called milky silkworms. Once the silkworms become ill, as the disease worsens, the sick silkworms will crawl frantically with milky white pus, so they are also called crawling silkworms. The sick silkworms spread a large amount of viruses on mulberry leaves and silkworm pus by crawling, causing healthy silkworms to eat the virus-carrying mulberry leaves and become infected and sick. 1. The main cause of the disease. Due to the presence of viruses in incomplete disinfection, the tenderness of mulberry leaves with high water content, the high temperature and humidity in the silkworm rearing environment, and the lack of early-stage steaming and waking treatment, healthy silkworms and diseased silkworms are mixed and infected each other. 2. Prevention and control methods. Before each feeding, extract the diseased silkworms with milky white bodies and frantic crawling, put them into a container with lime and bury them deeply, then wash your hands and disinfect the silkworm bodies and silkworm seats with fresh lime powder 1-2 times a day. In feeding, pay attention to the maturity of mulberry leaves, do not eat tender leaves and immature leaves (the leaves used for the first instar are the 2nd-3rd leaves of the new shoots, the leaves used for the second instar are the largest leaves of the new shoots, the leaves used for the third instar are the three-eye leaves, and the leaves used for the fourth instar are the full bud leaves), and pay attention to indoor ventilation. There should be air convection windows in the room for sleeping silkworms of 1-2 instars, the indoor air should be circulated for 3-4 instars, and the doors and windows should be opened for the 5 instars. If it is rainy and the mulberry leaves are wet, it is more important to open the doors and windows for raising silkworms. 2. Rigidity The conidia (white hairs) of the dead silk disease are brought in by the wind, mulberry leaves and other external factors. After landing on the silkworm body, they drill into the silkworm body after 10-12 hours, absorb the silkworm body's nutrition and water to sustain life. After one day, they drill out of the silkworm body again to produce hyphae and conidia, which are then transmitted to healthy silkworms through the conidia. 1. Cause of disease. The presence of conidia of the spores of the spores and high humidity in the air are conducive to the growth of conidia of the spores of the spores. The disease is usually more likely to occur in the rainy spring, summer and late autumn. 2. Prevention and control methods. Eliminate sick silkworms in time, catch them before their bodies turn white to prevent infection, and burn or bury the caught sick silkworms. Eliminate late-sleeping and sleepless silkworms in time during breeding, and disinfect the bodies and silkworm seats of susceptible silkworms such as ant silkworms, starter silkworms, and mature silkworms. Prevention and control when the disease is mild: In addition to routine disinfection of silkworm bodies and silkworm seats during the larval stage, the silkworm bodies and silkworm seats should be disinfected once a day during the fifth instar. Sprinkle more charred rice bran and lime during sleep to keep the silkworm seats dry. Prevention and control when the disease is serious: In addition to routine disinfection of silkworm bodies and silkworm seats for ant silkworms, starter silkworms and mature silkworms, the silkworm bodies and silkworm seats should be disinfected twice a day during the fifth instar stage, and the pressure material during dormancy should be changed from lime to anti-rigidity powder. The specific drugs for the prevention and control of the disease include: "Miejiangling" anti-rigidity powder, "Youlujing" anti-rigidity powder, and the antibacterial agent "402". "Xiongxiaojing" can also be used for fumigation disinfection. During the silkworm period, 200 times liquid "Xiaoteling" can also be used for spraying disinfection. 3. What should I do if the silkworms are sick?If the silkworms are sick, we must first observe, understand the condition, and find out the cause. Some common silkworm diseases include white spot disease, yellow eye disease, soft body disease, etc. For different conditions, we need to take different treatment measures. The first thing to do is to provide the silkworms with a dry, clean and ventilated environment. If the condition is more serious, we can use some drugs for treatment, but it must be done under the guidance of professionals. At the same time, the food for raising silkworms must also be kept clean and hygienic to prevent the silkworms from being contaminated secondary. At the same time, the drinking water of silkworms should also be paid attention to to ensure the growth, development and immune function of silkworms. In short, ensuring the health of silkworms is the primary task of raising silkworms. Only by doing these basic work well can we effectively avoid the risk of silkworms getting sick and improve the productivity and economic benefits of silkworms. 4. How to treat silkworm pus disease?There are many kinds of pus diseases in silkworms, the most common of which is blood-type pus disease. The main manifestations of blood-type pus disease in silkworms are swelling of the body, high internodes, manic crawling, easy skin rupture and discharge of white pus, dark brown abdominal feet, and dark brown round lesions around the valve. The higher the temperature, the faster the silkworms will get sick and die. Treatment method: After the silkworms develop blood-type pus disease, they should often use fresh lime powder to disinfect the silkworm bodies and silkworm seats. When the temperature is low during the adult silkworm period, bleaching powder or bleaching powder disinfectant containing 0.3% effective chlorine can be used to disinfect the silkworm bodies and silkworm seats. At the same time, we must do a good job in preventing pus diseases, strictly disinfect the silkworm room and silkworm tools; strictly separate the green silkworms in batches, separate the large and small silkworms, and eliminate the sick small silkworms; strengthen feeding management, effectively control the temperature and humidity of the silkworm room, feed good mulberry to make them full, and improve disease resistance. 5. How to treat silkworm pus disease?There are many kinds of pus diseases in silkworms, the most common of which is blood-type pus disease. The main manifestations of blood-type pus disease in silkworms are swelling of the body, high internodes, manic crawling, easy skin rupture and discharge of white pus, dark brown abdominal feet, and dark brown round lesions around the valve. The higher the temperature, the faster the silkworms will get sick and die. Treatment method: After the silkworms develop blood-type pus disease, they should often use fresh lime powder to disinfect the silkworm bodies and silkworm seats. When the temperature is low during the adult silkworm period, bleaching powder or bleaching powder disinfectant containing 0.3% effective chlorine can be used to disinfect the silkworm bodies and silkworm seats. At the same time, we must do a good job in preventing pus diseases, strictly disinfect the silkworm room and silkworm tools; strictly separate the green silkworms in batches, separate the large and small silkworms, and eliminate the sick small silkworms; strengthen feeding management, effectively control the temperature and humidity of the silkworm room, feed good mulberry to make them full, and improve disease resistance. 6. How to treat blood pus disease in silkworms?On the one hand, we should do a good job in disease prevention, regularly disinfect the silkworm bodies and silkworm seats, and feed them with good quality mulberry leaves to improve the silkworms' disease resistance. On the other hand, we should do a good job in isolating diseased bodies, add nets and remove sand in time to eliminate diseased silkworms, and isolate silkworms from different diseased batches. Prevention and control measures Strict disinfection, elimination of pathogens, and cutting off the route of infection Disinfection before silkworm rearing. Disinfection before silkworm rearing should be comprehensive and without omissions, including the silkworm rearing room, leaf storage room, various silkworm rearing utensils, as well as all utensils such as clothing and slippers inside and outside the silkworm room; the carcasses of diseased silkworms, clogged rat holes, cocoon silk scraps, weeds and garbage, ant holes and overwintering lice and mite hosts inside and outside the silkworm room should be thoroughly removed. 7. How to deal with silkworms poisoning during sericulture?1. First of all, we need to analyze and check the cause of poisoning. Generally, silkworms are very sensitive to pesticides and mosquito repellents. It is best not to use mosquito coils when raising silkworms at home, as it is not good for the silkworms. 2. If your silkworms are poisoned, be sure to take isolation measures in time to avoid infecting other silkworms. Feed them fresh silkworm leaves after isolation. If they still don't move after two days, they will die. You can also go to the plant protection station, silkworm seed farm, agricultural supply store, and crop hospital to consult technicians. There will be special silkworm medicine for sale, which can be used to treat the disease, just like a veterinarian treats a pet's disease. 3. If it can still eat mulberry leaves, try grinding atropine, then add water, sprinkle it on the mulberry leaves, and then feed it. It may work. But don't hold out too much hope. It has already produced yellow water, so it is estimated that there is little hope of survival. |
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