With strong adaptability, wild maggots are widely distributed and can grow from 50 meters to 2800 meters above sea level, but they are distributed at an altitude of 600-900 meters. Mostly grown in dry, sunny, 10-35 degrees slope, slightly acidic sandy loam soil distribution, the general buried depth of 50-80 cm. Cockroaches are facultative parasitic fungi. Their hyphae can survive by invading the living tree roots and drawing on the nutrients of the dead trees. Like to parasitize in the roots of pine trees, rely on their mycelium spread in the roots and trunks, decomposition, absorption of pine nutrients and water as a source of nutrition. Cockroaches are aerobic fungi that grow well only when they are well ventilated. The mycelia growth temperature is 18-35°C, and the growth is fastest and robust at 25-30°C. The mycelium above 35°C is easy to age, the growth is very slow below 10°C, and it is dormant below 0°C. The fruiting bodies develop most rapidly at 24-26[deg.] C. and produce a large amount of spores. When the relative humidity of the air is 70% to 85%, spores are largely emitted. Below 20°C, the growth of fruit bodies is limited and spores cannot be distributed. The requirement for moisture is that the moisture content of the host (root or wood) is 50%-60%, and the soil moisture content is 25%-30%. There are many ways to cultivate oysters, with wood sections, tree roots and pine needles (splendid leaves plus short shoots). At present, the production area is mainly inoculated on pine wood using yew mycelium as a primer. After the mycelium grows in pine wood for a certain period of time, it forms a sclerotia. 1. Election site and material preparation (1) The selection site should select a slope with an elevation of 600-900 meters and a slope of 15-30 degrees, which requires a sunny leeward, sandy side soil, neutral and slightly acidic, well-drained land. Remove debris such as grass roots, roots, rocks, etc., then dig the pits downhill, pits 60-80 cm, length and width depending on the length and length of the wood segment, generally 90 centimeters long, cellar spacing of 20-30 centimeters. Open a drainage ditch around the field. (2) Prepared for the fall/winter of the first year, felled pines, shaved branches and cut 3 to 10 barks alternately depending on the size of the pine, commonly known as “skinned barsâ€. The noodles are 3 cm wide and 0.5 cm deep into the xylem, making the pines easier to dry and out of turpentine. The cut pine wood is erected on the ground to make it fully dry. When the pine wood fracture stops discharging fat and knocks with a crisp sound, it is sawn into a 65-80 cm long wooden section and set aside for ventilation and light transmission. The wooden sections will be discharged into the pit approximately in June. Each pit will be arranged in three to several sections, with thick and thin layers, and be prepared for inoculation. 2 bacteria species are also called primers, sub-mycelium cited, meat cited and wood cited three. Now more use of mycelium cited. (1) Hyphae is a purely cultured Mycelium hyphae, and mycelium mothers are separated by tissue separation. But it is best to use pityriasis spores for seed production, the method is to use 8-9 kilograms of fresh bacteria nuclear water container, about 2 cm from the water, room temperature 24-26 °C, air humidity more than 85%, bright light, only one day later The sclerotia appear white honeycomb-like fruit bodies near the water surface. After 20 days, fruiting bodies can sporadically shoot spores. This can be aseptic. Cut 1 cm 2 of dry solids and hang them on a PDA medium using an S-shaped wire hook and incubate at 28°C. After 24 hours, the spores were germinated as white hyphae and purified and cultured to obtain the mother seed. The parent species can be expanded to the original species using a PDA medium slope. The original species was further bred to the cultivar culture medium. After culturing at 25-28°C for 1 month, the hyphae were filled with various parts of the culture medium to obtain the cultivar for the wood section. The weight composition of the cultivating medium is: pine wood chips 76: bran 22: gypsum powder 1 : sucrose 1, and the amount of water is appropriate so that the water content is about 65%. After mixing, insert the jar into a wide-mouth bottle and a polypropylene plastic bag and insert the original seed into the bottle after routine sterilization. (2) Slices of meat are freshly picked. Select freshly dug individuals, medium-sized, 250-1000 grams each, with a good sip of juice. (3) Water refers to the wood that is inoculated with meat, ie, the wooden section with mycelium. In early May, the dry pine with a texture of 9-10 cm in diameter is selected, and the 50 cm section of wood is sawed after leaving the tendons. . Inoculated with freshly dug oysters, usually 10 kg of wood section with fresh oysters 0.5-0.7 kg. The method of inoculation with the head-introduction method is to attach the seedlings to the upper end of the wood section, cover the soil with 3 cm, and dig it out in early August. Selected yellow white, there are obvious hyphae under the skin, with aroma of wood for wood introduction. 3. Inoculation and Management (1) Hyphae Inoculation Choose sunny days, sharpen the upper end of the middle and fine wood sections in the pit, and then insert the cultivating seed bottle or bag in the tip. Immediately cover soil 3 cm after inoculation. The cultivars can also be poured out from the bottle or bag, concentrated on the upper section of the wood section, covered with a layer of wood chips and leaves, covering the soil. (2) Inoculation of meat according to the thickness of the wood segment to take two or three or two layers. When inoculating, cut the winter seeds with a clean knife, and put the meatballs close to the wood section. The amount of inoculation depends on the conditions of the region, climate, etc. Generally, 250 kg of l000 kg seeds are used for 50 kg of wood. (3) Inoculated with wood, the wood section selected as the species will be excavated and sawed into two sections, and the water in the common pit will be led to section l-2. When inoculating, put the wood lead and the wood section head to head. The inoculation season varies from region to region. Areas with high temperatures are conducted in early April and low temperatures can be vaccinated in the first six months of May. The hyphae germinate in 3-5 days after inoculation, and it takes 10 days to spread. In this period, we must prevent and control termites. After 3-4 months after inoculation, scabs can be made. Do not shake the wood during scab to prevent the hyphae from breaking. The pods grow rapidly during the clams, cracks often appear on the ground, and the caulking and removal of weeds should be promptly completed. 4. Insect pests and their prevention and control Black-winged termites: licking up the pine wood section, so that it does not grow long and severely reduce production. Control methods: Avoid the ant source when selecting the winter field, remove rotten tree roots, and dig a closed circular anthill with a depth of 50 cm and a width of 40 cm around the winter ground. Import termite natural enemies - ant colonies; set up ant traps around the field, bury pine or bagasse, induce termite pits, check once a month, see ants kill. (4) Harvesting and processing When the pupa is yellowish brown, it can be excavated. If the color is yellow and white, it is immature. If it is black, it is already ripe. Choose sunny days to excavate, brush to sand, pile in the indoor row, a layer of straw on the bottom and the surface, so that sweating, turning every 3 days 1 time. When the water is dry, the skin can be peeled off when the skin is wrinkled. The inside is cut into thick and even pieces, pink is red peony, white is cymbal, and the center has a wooden heart that is blasphemy. It is also possible not to slice, dry the water and then dry it for drying. China Agricultural Network Editor