Detailed Explanation of Key Points of Pollution-Free Pear Bagging Technology

① Bag selection: The selection of paper bags for pear bagging should be reasonably made according to the tree growth conditions in the orchard, production goals, and economic capacity. Since the main purpose of bagging pears is to improve the smoothness and finish of the fruit surface, lower-cost single-layer bags can be chosen, such as Kaixiang bags, Tianjin bags, etc.; for those aiming to improve quality, double-layer bags with a black inner bag can be chosen.

② Bagging period: Pears should be bagged after fruit thinning is completed in early to mid-May; the best bagging time is on sunny days from 9:00 to 11:00 in the morning and from 2:00 to 6:00 in the afternoon.

③ Bagging method: Before bagging, place the whole bundle of fruit bags in a damp place to let them absorb moisture and become soft and pliable; after selecting the young fruit, carefully remove the petals and other debris 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, so that the bag body expands and the ventilation and drainage holes at the two bottom corners of the bag open. Hold the bag mouth 2 cm to 3 cm from the lower edge, with the bag mouth facing upward or downward, and slip it over the fruit. After putting the fruit in, place the fruit stalk at the base of the bag opening (do not put leaves and branches into the bag), then fold the bag mouth from both sides in sequence in a "folding fan" manner at the cut, tie the binding wire tightly around the bag mouth at the fold, tear open the binding wire from the connection point above the wire opening, turn the binding wire back 90 degrees, rotate it once around the bag mouth to tie the bag mouth tightly, so that the young fruit is in the center of the bag body, suspended inside the bag, to prevent the bag body from rubbing against the fruit surface. Do not wrap the binding wire around the fruit stalk. When bagging, the direction of force should always be upward to avoid pulling off the young fruit. The force should be gentle, and the young fruit should be touched as little as possible. The bag mouth should also be tied tightly to prevent pests from crawling into the bag and damaging the fruit and to prevent the paper bag from being blown off by the wind. In addition, exposed fruits on the upper part of the canopy and on the back of scaffold branches should be bagged less to avoid sunburn. The bagging order is from top to bottom and from inside to outside. The average number of bags per 667 sq m in a pear orchard is about 7,800. Do not remove the bags before pear harvest.