There are many unfavorable factors in sericulture in summer and autumn. Mainly, there are many pests and diseases, many silkworm diseases, many flies, poisoning in many cases of silkworms, and large climate changes. If there is slight negligence, the production will be reduced. To cultivate good summer and autumn silkworms, we must seize the following points according to the characteristics of each period: (1) Grasp the control of pests and diseases to ensure high quality yields of summer and autumn mulberry leaves. In summer and autumn, pests and diseases are seriously endangered, affect the leaves for sericulture, and infect silkworm diseases. Therefore, early treatment, continuous treatment, general treatment, and complete treatment ensure the high yield and quality of summer and autumn leaves. (2) Reasonable layout, timely development of species, scientific use of leaves, adoption and maintenance. With the principle of "less use of summer silkworms and more breeding of autumn silkworms", according to the situation, it is advisable that the amount of summer silkworms to be bred to account for 15% to 20% of the annual sericulture capacity, so that the mulberry can be fully stretched and the branches and leaves are lush and full of autumn. The increase in leaf production and the increase in production next spring lay the foundation. In the summer and autumn, when mulberry leaves are harvested, both leaf collection and tree maintenance should be taken into account. It is necessary to meet the requirements of sericulture, but also to take care of the growth of mulberry trees and maintain the high yield of mulberry leaves for successive years. That is, "there is a combination of raising and keeping in use." Each time the rearing of silkworms ends, the heads of the mulberry trees should retain five or six mulberry leaves to facilitate photosynthesis for the growth of mulberry trees. In particular, the new Mulberry Mulberry Mulberry leaves should be more leaves in order to store nutrition and safe winter, and enhance the ability of cold resistance and growth for the coming year. Silkworm larvae should be staged and leaves collected in stages without affecting the growth of mulberry trees. From the bottom to the top, the leaves below the 15th leaf had a straight decline in photosynthesis. As the leaf age was older and shading was added at the upper leaves, the light was weakened and the nutrient production was reduced, and nutrients were consumed. Therefore, the removal of these leaves, the summer silkworm mulberry 1 ~ 3 order can not only select the appropriate mature leaves in the upper branches, the top of each root can only choose to take 1 to 2 tablets. Autumn silkworm silkworm leaves are also selected in the upper branches, to stipules apex 1/3 ~ 1/2 into a brown-brown to 1 ~ 2 to make suitable cooked leaves. Bombyx mori leaf is used to pick the appropriate mature leaves in the middle and it is not broken. The principle of collecting leaves for the summer and autumn silkworms is: "small" silkworms "smartly" adopt, and "less" adopt upper leaves. The silkworm period was taken from the bottom up and collected in batches. (3) Strengthen the "four defenses" to achieve disease-free and high-yield production. Silkworm disease is common in summer and autumn, and climate change is large. Therefore, we must do everything possible to disinfect, drive insects to adjust the temperature and humidity of the silkworm at room temperature, strengthen ventilation, and strive for disease-free and high-yield. This is the key to success in summer and autumn. Disinfection and Disease Prevention: Since the silkworms of the summer and autumn period have just ended, the environment retains many diseases, fresh, strong virulence, high temperatures, and easy reproduction. Therefore, the pathogenicity is strong. In addition to leaf quality, climate and other conditions, it is worse than the spring silkworm period. Therefore, the disinfection work in summer and autumn silkworms is more important and must be implemented consistently. Before silkworm rearing, silkworm silkworm must be completely sterilized, and the mixture of benzalkonium chloride and bleaching powder is generally used for disinfection. In the silkworm room and the storage room door, lime is often stepped on the lime to enter the door and wash the hands to feed silkworms. Each time after the sericulture is finished, it must be thoroughly disinfected once to concentrate the annihilation of the microbes. In the summer and autumn of silk fly, a lot of silkworm flies are infested. Bamboo curtains must be hung on the doors, and the curtains should be draped to prevent the fly from flying. During the silkworm period, flies were used to drive the flies. The method was to use clean, dry sanghai wood and straw to smoke in the silkworm room so that the flue gas filled the silkworm room and the flue gas could be driven by the window. The best way is to use the "silkworm flies" to control silkworm disease. The silkworm body was sprayed with 300 times the liquid, or 500 times the liquid was added, three times for one, four times for two, and five times for another day. Four to five add food to the damage caused by silkworm disease. Each piece of flies was added 0.5 kg of water. Each piece of silkworm used five pesticides and was sprayed on mulberry leaves. After eating the leaves, the leaves were fed. The silkworm body is sprayed with 3 kilograms of water per piece and sprayed on the surface of the silkworm body. Feeding leaves every half hour can prevent and control the damage of the flies. Anti-poisoning (1) Prevention and control of mulberry pests must be carried out after the residual period is over. (2) There should be no pesticides or medical devices inside and outside of the silkworm room and storage mulberry; (3) Chemical insect repellents must not be used inside the silkworms. Immediately after intoxication, silkworm poisoning, ventilation, ventilation, sand removal, silkworm silkworm silkworm washed with cold water, feeding licorice water, mung bean water, detoxification, fresh mulberry leaves, add chloramphenicol, to prevent re-induced silkworm disease, Promote the rehabilitation of silkworms; (4) Abrupt climate change. The climate in summer and autumn is complex and changeable. Therefore, it is necessary to prevent heat and freeze, prevent the temperature of the silkworm chamber from undergoing drastic changes, and take precautions against hot and humid ventilation. When the continuous rainy weather turns cold, add fire to warm the air and remove moisture. Rarely eaten to feed the leaves, feeding the leaves, diligently remove the sand, diligently expand the seat, to ensure that the crowd is not crowded, and the silkworm sand is not steamed hot. "Satiation" is the center of all technical operations. We must also timely and timely raise the number of young people in batches, eliminate diseased and weak silkworms, do a good job of all kinds of technical processing work, give full play to people’s subjective initiative, and ensure a good harvest in the summer and autumn.
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