During the summer silkworm season, the temperature is high, the pathogens are numerous, the mulberry pests reproduce rapidly, and the pesticide pollution is heavy. In order to maintain the summer silkworms, it is necessary to grasp five defenses:
1 Anti-high temperature: The optimum temperature for large and small silkworms is 24°C and 27°C, respectively. From late June to mid-July, the indoor temperature is generally around 30°C, which is not conducive to the growth and development of silkworm, so it is necessary to create a superior microclimate to adapt to it. The physiological needs of silkworms. In the 1 to 3 years of age, silkworms should be kept in a trampoline for beneficial cooling. The temperature in the trampoline is about 2°C lower than that outside the trampoline. After silkworm feeding, the doors and windows should be closed to reduce the flow of hot air into the room. Before and after the silkworm room, take a arbor and cover the grass with a large tile roof. Raise silkworms, spray well water indoors, or use a fan to cool the breeze.
2 against hunger: high temperatures, rapid growth and development of silkworm, eating more than mulberry in unit time. Therefore, the amount of leaf feeding or the number of leaf feeding should be appropriately increased to meet the needs of the growth and development of the silkworm. Although the age period is shortened, as long as people plan to use mulberry, they can promote the development of silkworm larvae and increase silkworm cocoon production.
3 Disease prevention and control: After silkworm rearing, more and more pathogens in indoor and outdoor silkworms are often stored. In addition, the weather is harsh, and the pests are easy to be infected. Therefore, the silkworms and utensils must be disinfected before sericulture, and the silkworms after sterilization must be exposed for 3 to 4 days. Kill pathogens. During the sericulture period, we can often use fresh lime powder, disease prevention No. 1 and other agents to sterilize silkworms and silkworms and control the occurrence of silkworm diseases.
4 Insect pests: During the high temperature and dry season, mulberry horses and mulberry spiders are harmful to the mulberry leaves, resulting in a decline in the yield and quality of mulberry leaves. Feeding silkworms with poor nutrition, mulberry silkworm, silkworm body is thin, disease resistance is poor, the yield of pupa produces 2 to 30% less than high quality mulberry leaf feeding silkworm. 4 to 5 days before silkworm rearing, 25% of dimethoate emulsion can be sprayed on the opposite side of mulberry leaf with 1,500 times of liquid to kill red spider, and spray 8 times with 80% dichlorvos emulsion 2,000 times to kill mulberry Hummer, ensuring leaf quality.
5 Preventing phytotoxicity: The crops of summer silkworm crops are frequently pest-treated, especially insecticides, insecticides and other pesticides pose a greater threat to silkworms. Therefore, we must pay attention to the wind direction when crops are used to treat pests. We must avoid contaminating mulberry plants and prevent poisoning. Focus on silkworm crops pest control can not use insecticide, insecticide double, use other pesticides instead. In addition, close to the mulberry fields in the cotton fields and rice fields, picking the leaves must adhere to the test feeding, confirming that there are no phytotoxicity and only leaves can be used. Poultry poisoning should be promptly rescued, immediate removal of sand, feeding fresh non-toxic mulberry leaves, or 1% fresh lime powder, 500 times adrenaline sprayed Mulberry leaves to feed for detoxification.
A Urine Test Strip or dipstick test is a basic diagnostic tool used to determine pathological changes in a patient`s urine in standard urinalysis. A standard Urine Test strip may comprise up to 10 different chemical pads or reagents which react when immersed in, and then removed from, a urine sample. A urine test strip or dipstick test is a basic diagnostic tool used to determine pathological changes in a patient's urine in standard urinalysis.
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