What should I pay attention to when bagging crisp pears?

What should I pay attention to when bagging crisp pears? Please introduce that pear bagging is one of the effective measures to produce pollution-free pear fruit and improve the rate of excellent fruit. Attention should be paid to: (1) Orchard management before bagging. (1) artificial pollination and artificial pollination can make pear fruit well fertilized and form more seeds. Auxin is also formed, which can promote young fruits to grow into high-quality large fruits. Two inflorescence flowers should be selected for pollination, and the fruit produced is easy to form a large fruit, which is easy to be selected when fruit thinning and bagging. 2. Flower thinning and fruit thinning is to ensure the bagging fruit to form high quality fruit. Before bagging, a reasonable load must be determined according to tree age, tree potential, fertilizer and water level, and the work of flower and fruit thinning must be done carefully. When thinning fruit, it is necessary to keep more crown fruit and less internal fruit; keep more fruit under the back, test fruit, and less fruit branch; leave one fruit at an interval of about 20 cm on the fruit branch; remove the central fruit in the inflorescence and retain two lace fruits of better quality. If you plan to produce 2500-3000kg bagged fruit per mu, leaving 1-12000 fruits per mu. 3. Pest control and disease control on the basis of paying attention to the prevention and control of diseases and insect pests in spring, it is still necessary to spray lmer twice before bagging, focusing on spraying the fruit surface to kill the bacteria and insects on the fruit surface, mainly to control pear scab, ring fruit rot, pear wood lice, yellow pink, powder, aphids and so on. Insecticides can choose imidacloprid, imidacloprid, Anbaobao, Saidan, etc.; fungicides can choose Fuxing, polyoxin, agricultural resistance 120, Shigao, bacteriolimide, methyl topiramine, etc.; protective agents can choose Dasheng Mmur45, Pink and so on. When spraying, you should be careful not to increase the concentration of the liquid at will. When spraying each time, you can add foliar fertilizers such as Hefei, calcium fertilizer and urea to enhance the nutrition of the tree. 4. Watering before bagging can effectively reduce the phenomenon of fruit burning caused by high temperature after bagging. 2. Bagging operation technology. In the selection of bagging orchards, the orchards with fine management, good ventilation and light transmission and neat appearance should be selected for bagging, and the trees with strong tree strength, good fruit and uniform fruit size should be selected as bagging trees in the orchards. 2. The appropriate time for bagging is 20 days after falling flowers, and after setting the fruit, you can start to strive for the end in about 10 days. Bagging early fruit surface and stalk are young and tender, easy to be injured by friction; too late fruit hydration, poor effect O the best bagging time of the day is 9-12:00 in the morning, 3-7 pm, never in the morning dew is not dry, the temperature is low or the sun is strong at noon, the temperature is high. 3. The choice of paper bags should be high-quality double-layer paper bags with good air permeability, soft texture, resistance to wind, sun and rain. 4. Bagging method bagging operation should be light, which can be divided into five steps: supporting bag, covering fruit, pressing mouth, tight day and sealing. First open the paper bag, cover the fruit and put the handle on the mouth of the bag, be careful not to put the leaf into the bag, fold the mouth of the bag horizontally so that it is close to the handle, and then clamp the folded mouth of the bag with wire clip (do not clip on the handle). Pay attention to the paper bag to maintain the bulging state, the young fruit in the bag should be suspended, do not contact with the paper bag wall to prevent friction. 5. If the bagging order is on the same pear tree, the upper part of the crown fruit should be covered first, then the lower fruit, the inner bore fruit first, and then the outer fruit. Click for more pear tree planting techniques click to get more fruit planting techniques