Bagging Technology of pollution-free Pear

① paper bag selection: the choice of pear bagging paper bag should be reasonable according to the tree growth situation, production target and economic capacity in the garden. As the main purpose of pear is to improve fruit surface finish, single-layer bags with lower cost can be selected, such as Kaixiang bag, Tianjin bag, etc., and double-layer bags with black inner bag can be selected for the purpose of improving quality.

② bagging period: pears were bagged at the end of fruit thinning in the first and middle of May, and the bagging time should be 9am and 2pm in the morning and 2pm in sunny days.

③ bagging method: put the whole bundle of fruit bags in a wet place before bagging to make them moist and flexible. After selecting the young fruit, carefully remove the petals and other sundries attached to the young fruit, hold the paper bag with the left hand, open the bag mouth with the right hand, or blow open the bag mouth with the mouth to make the bag body inflate, so that the aeration water hole at the bottom of the bag is opened. 2 cm ~ 3 cm below the mouth of the bag, the mouth of the bag is placed up or down into the fruit, and the fruit stalk is placed at the opening base of the bag (do not put leaves and branches into the bag) Then fold the bag mouth in a "folding fan" way from both sides of the bag mouth, fasten the binding wire to the folding place, tear the binding wire from the connection point above the line mouth and turn the binding wire back to 90 degrees, rotate and tighten the bag mouth for one week along the bag mouth, so that the young fruit is in the center of the bag body, hanging in the bag to prevent the bag body from rubbing the fruit surface, and do not wrap the binding wire on the fruit stalk. When bagging, the direction of force should always be upward, so as not to pull off the young fruit, the force should be light, try not to touch the young fruit, and the mouth of the bag should be tied tight, so as to prevent pests from climbing into the bag to harm the fruit and prevent the paper bag from being blown off by the wind. In addition, there should be fewer sets of bare fruits on the upper part of the crown and the back of the backbone branches to avoid sunburn. The bagging order is first up and then down, first inside and then out. The average number of bags in the pear orchard is about 7800 per 667m2. Don't bag the pears before harvest.