Techniques of buying cicada larvae or raising cicada larvae.

Cicada is also called cicada, and its cicada slough and male cicada can be used as medicine. The newly unearthed mature larvae are rich in nutrition, with protein content of 58-58% and fat content of 10-32%. At present, cicadas have been put on the table. As a health food, the market demand is increasing and the price is getting higher and higher. 0.3-0.5 yuan per fresh cicada. Wild resources alone can no longer meet the needs, and artificial breeding has begun at present. Industry insiders predict that cicadas will become one of the important green foods for human beings. Artificial cicada breeding has the advantages of low investment, easy mastery of technology, labor saving, high efficiency and no risk, and it is a new project for rural prosperity. 1. Biological characteristics of grasshoppers are widely distributed, mainly inhabiting broad-leaved trees, especially young branches of poplar, willow, elm, peach and apple trees. Completed in 3-5 years 1 generation. Female cicadas lay eggs in July and August, and the eggs are laid in xylem of new shoots with a diameter of 4-7 mm, and each nest lays 6-8 eggs, with an average of 90 eggs per 1 spawning branch. The female insect cuts the epidermis of the paved branches with an ovipositor, so that the paved branches die, so that the branches can be buried in the soil after landing. The life span of adults is 60-70 days. Cicada eggs fall to the ground with dead branches for the winter. It hatches in mid-May of the following year, and the incubation period ends in late June, and the egg period is close to 300 days. From late May to late August, the mature larvae emerge from the soil, climb to shrub branches, weed stems and other places, shed their feathers and become adults. The peak period is from mid-June to mid-July, and the ending period is from early June to early October of 10. Mating and spawning are carried out 20 days after emergence, with the peak spawning period from late June to late August and the end spawning period from late September to early June. The death period of adults is165438+1early October. Second, the feeding method (a) to cultivate forests, we must first cultivate seedlings of broad-leaved trees. Broad-leaved trees such as willow, poplar and elm can be planted. The trunk should be shorter and covered with nylon net. Adults collected in summer are placed in trees in the net room to lay eggs, and then eggs are collected; Branches with cicada eggs collected in autumn are also buried in the roots of the net room. Can also be combined with planting fruit trees to raise cicadas. For example, you can plant 300-660 square meters of peach trees, set the trunk lower, enclose the peach garden with welded nets, and cap the top with nylon nets. Adult cicadas are stocked in the peach garden, and cicada eggs are buried at the root of the peach tree. (2) Feeding management 1, providing high-quality feed. Such as poplar, willow, elm or various fruit trees. still

Intercropping rhizomes, such as potatoes, sweet potatoes, yams, etc. Will provide feed for cicadas and larvae. 2. Provide good environmental conditions. Cicada eggs are 30-50 cm deep and must be buried in sunny, anti-freezing, soft, fertile, pollution-free and suitable humidity places. Winter should be covered with wheat straw, rice straw, corn straw, etc. , to keep the ground temperature. 3. Establish a production site. In addition to collecting cicada eggs naturally, a large net room can be built to provide adult cicadas with spawning space to prevent adult cicadas from escaping and being preyed by the enemy. You can use fruit trees in abandoned orchards, or plant saplings in abandoned orchards. A fence with cement columns or wooden poles can be erected around it, and the top can be sealed with barbed wire and nylon net. Emerged or harvested adults mate and lay eggs in the net room, gradually forming the seed source area, and it is not necessary to collect wild seed eggs. Third, breeding technology (1) Obtain the seed source 1 and collect the eggs. Choose a place with dense trees and many cicadas, and use a long pole with a high-branch scissors at the top to cut off the thin and dry branches killed by cicada eggs on the tree. Any cicada egg with flat and dry side, incomplete surface and a large number of ivory oval eggs embedded in the xylem under the skin is called cicada egg. Cut off the extra dead branches without eggs on the upper part of the ovary, and leave 10- 15 cm without eggs on the lower part of the ovary trace. Bundle 50 branches into small bundles of 1 and put them into plastic bags. Leave a hole in the plastic bag. 2. Adult collection. The mature larvae were collected at 18-24. The reaper caught the tree with a flashlight at the bottom of the trunk. After harvesting, they are put into a sarong to feather and lay eggs. Shrubby host plants can be planted in the cage for laying eggs, and some seedling fruit trees can also be planted. You can also catch adults in trees. (2) Embedding of eggs. Branches with eggs collected from the field or provenance are hatched indoors. Spread 5- 10 cm fine dry sand on the bottom of a wooden box or plastic box with a length of 70 cm, a width of 40 cm and a height of 20 cm, place the egg branches in vertical or horizontal bundles, and spray them continuously with a small sprayer to keep the air high in humidity. During the period, nymphs were found to form, that is, branches with eggs were buried in the farm with sand. The burial time is 9-65438+ 10 month (2-year-old eggs), and the eggs of that year will not be buried until June-July of the following year. The burial position is 1 m away from the base of the trunk under the host plant tree, and a narrow trench with a depth of 30-50 cm can be dug, such as ring, square, triangle, parallel or radial, for excavation or capture. After burying, cover the soil and tamp it, and record the groove shape and depth. After hatching, cicadas began to grow in June, weighing 1 g that year, and their whole body and eyes were milky white. The next year, he weighed 3 grams, his whole body was pigmented and his eyes were pink. In the third year, the nymph is mature, weighing 4-4.5g, with an average of 2 10 per kilogram. Its body color is brown and its eyes are dark gray. 4. Pest control There are many natural enemies of nymphs and adults, such as toads, snakes, rats, hedgehogs, sparrows and other birds; Microorganisms such as Beauveria bassiana, Metarhizium anisopliae, and Cordyceps (cicada fungus). Floods, pesticides and fertilizers are harmful to nymphs or adults. The most important seasons are egg period, cicada ant occurrence period and mature nymph unearthed period. The natural enemies of cicada ants in egg stage and occurrence stage are mainly ants and Toona sinensis. The control measures are to soak the eggs and branches with 0/00 times diluted solution of strong chlorine essence/KLOC-or treat the soil with pesticides such as dichlorvos and strong chlorine essence.