Because silkworms have high temperatures, many pathogens, rapid reproduction of mulberry pests, and heavy pesticide pollution, it is imperative that the silkworms have a good grasp of the “five preventions†in order to maintain a good silkworm:
1, anti-high temperature. The suitable temperature for silkworm size was 24°C and 27°C, respectively. From late June to mid-July, the indoor temperature is usually around 30°C, which is not conducive to the growth and development of silkworm, and it is necessary to create a superior microclimate to adapt to the physiological needs of silkworms. In the 1-3 instar period, the larvae should be kept in a trampoline for beneficial cooling. After silkworm feeding silkworms, doors and windows should be closed to reduce hot air flow into the room. Before and after the silkworm room, take a pergola, cover the grass on the roof, or raise the silkworm, or spray the well water indoors, and use a fan to cool the breeze.
2, prevent hunger. The temperature is high, and the growth of silkworms is fast. Therefore, the amount of leaf feeding or the frequency of leaf feeding should be appropriately increased, and the development of silkworm silkworm should be promoted to increase the yield of silkworm cocoons.
3, prevent disease. Before silkworm rearing, silkworm silkworm must be carefully disinfected, and the silkworm after sterilization must be exposed for 3-4 days to completely kill pathogens. During the silkworm raising period, fresh lime powder, disease prevention No. 1 and other chemicals are often used to disinfect silkworm silkworms, chloramphenicol or gram insecticides are added in time, wet leaves are not eaten, and virus diseases and bacterial diseases are controlled.
4, pest control. Before 4-5 days of silkworm rearing, a 25% dimethoate emulsion can be sprayed on the opposite side of the mulberry leaf 1500 times to kill the red spider. With 80% dichlorvos emulsion 2000 times even spray 2 times to kill mulberry horses, ensure leaf quality, to avoid cross-infection.
5, anti-drug. Farmland pest control should pay attention to the wind direction, avoid contamination of mulberry leaves, to prevent poisoning. Focus on silkworm crop pest control can not use insecticide, insecticide double. Close to the mulberry field in the cotton fields and rice fields, test feeding before feeding, confirming that no medicine can be used in large quantities. In case of poisoning in silkworms, sand should be removed immediately, fresh and non-toxic mulberry leaves should be fed, or mulberry leaves should be sprayed with 1% fresh lime powder or 500 times adrenaline to feed silkworms for detoxification.
1, anti-high temperature. The suitable temperature for silkworm size was 24°C and 27°C, respectively. From late June to mid-July, the indoor temperature is usually around 30°C, which is not conducive to the growth and development of silkworm, and it is necessary to create a superior microclimate to adapt to the physiological needs of silkworms. In the 1-3 instar period, the larvae should be kept in a trampoline for beneficial cooling. After silkworm feeding silkworms, doors and windows should be closed to reduce hot air flow into the room. Before and after the silkworm room, take a pergola, cover the grass on the roof, or raise the silkworm, or spray the well water indoors, and use a fan to cool the breeze.
2, prevent hunger. The temperature is high, and the growth of silkworms is fast. Therefore, the amount of leaf feeding or the frequency of leaf feeding should be appropriately increased, and the development of silkworm silkworm should be promoted to increase the yield of silkworm cocoons.
3, prevent disease. Before silkworm rearing, silkworm silkworm must be carefully disinfected, and the silkworm after sterilization must be exposed for 3-4 days to completely kill pathogens. During the silkworm raising period, fresh lime powder, disease prevention No. 1 and other chemicals are often used to disinfect silkworm silkworms, chloramphenicol or gram insecticides are added in time, wet leaves are not eaten, and virus diseases and bacterial diseases are controlled.
4, pest control. Before 4-5 days of silkworm rearing, a 25% dimethoate emulsion can be sprayed on the opposite side of the mulberry leaf 1500 times to kill the red spider. With 80% dichlorvos emulsion 2000 times even spray 2 times to kill mulberry horses, ensure leaf quality, to avoid cross-infection.
5, anti-drug. Farmland pest control should pay attention to the wind direction, avoid contamination of mulberry leaves, to prevent poisoning. Focus on silkworm crop pest control can not use insecticide, insecticide double. Close to the mulberry field in the cotton fields and rice fields, test feeding before feeding, confirming that no medicine can be used in large quantities. In case of poisoning in silkworms, sand should be removed immediately, fresh and non-toxic mulberry leaves should be fed, or mulberry leaves should be sprayed with 1% fresh lime powder or 500 times adrenaline to feed silkworms for detoxification.
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