Recently, many farmers in and around the city and outskirts have telephoned the peach and apple trees to pollinate fruit trees using wall bees. According to a decade of experience from the Beijing Science Association of Pinggu District in the orchard to promote wall bee pollination, the main contents of the wall bee pollination technology are described as follows: Preliminary preparations for wall bees are to be completed: first, the honeycomb must be prepared and every section of the reed must be cut. An empty tube of 15-17 centimeters is bundled into 50 bundles of 1 bundle. Each bundle of honeycombs needs 6 bundles and is packed into a cardboard box that is 30 centimeters long and 16 centimeters wide. It is made into a nest box and is used for the wall bee camp. Natural honeycomb feeling. The time for bee release: for 3-5 days before flowering, the amount of 80-100 heads/mu is put. When it is put in, a nest box (about 33 centimeters from the ground) is set in each round of 26-30 meters in the orchard line, and it is in the nest. Dig a 404,040 cm puddle in front of the tank to keep the soil moist and build a nest for the bees. After the completion, place the bee in a flat rectangular carton (3 holes in the front wall of the box for the bees to shell out) On the top of the nest box, if the wall bee is left for a long time, it will not be shelled. You can use the hand to sprinkle some water in the tray of the bee to humidify the whole bee. Wall bee collection and storage: fruit trees spent 5-7 days, the nest tube back, placed in a nylon yarn bag, kept in a clean and ventilated room for the larvae to form a safe dormancy in the oysters, reuse in the coming year. In this way, a certain scale is formed on a regular basis, and in addition to its own use, the remaining bees can be sold to increase income. 10-15 days before the bees are released, avoid spraying pesticides in or near the pollination orchard, especially on the uptake plot.