Comprehensive management adopts new technology to protect flowers and fruits of mango.

Mango winter jujube fruit is easy to protect the fruit is difficult, from the young fruit stage to the white ripening period has been falling fruit, and what is puzzling is always falling big leftover small, so that jujube farmers are very distressed. In recent years, mango has been tested by taking various measures to protect flowers and fruits, and the following new comprehensive management techniques have been obtained to solve this problem: 1. The traditional methods to control the excessive growth of branches are ring peeling, killing a little, cutting roots and so on. These tough measures do great harm to the tree potential and greatly shorten the tree age. The above traditional measures can be completely replaced by using the new technology of promoting flower king, controlling shoot and promoting flower. When the last autumn tip of mango turns green, ring cutting and smearing "promoting flower king 2", "promoting flower king 2" is a cationic surfactant, which can be disinfected and activate anions in the tree, so as to transform the vegetative growth of mango trees into reproductive growth, control the wild growth of branches, improve the quality of dormancy in winter, and make more blossoms and more fruits next year. 2. Cut off the branches and leaves of diseases and insects, weak branches, shade branches and drooping branches, retract part of the fruiting branches, cut off the dense buds of fruiting branches, and remove the cut branches and leaves and burn the orchards. If the manicured wound is not closed in time, it will dry and crack, be threatened by pollution and diseases and insect pests, and cause the tree to weaken. Apply oily soft solid "callus anticorrosive film" directly on the cutting edge to form a layer of impervious, tough and close to wood, which protects the growth of wound and wound tissue, and is easy to operate and carry. 3. The experience of bagging fruit shows that paper bag fruit is an effective measure to cultivate high quality fruit and increase yield. However, due to the high price of paper bags, it is difficult for fruit farmers to accept. The "new high fat membrane" microfilm bagging technology can not only protect the fruit from fruit flies and fruit moth, scrape the pericarp from branches and leaves, and keep the fruit fresh like paper bags. Moreover, it has a significant effect on the prevention of cracking, rotten melon, falling melon and coarse fruit, easy to operate (from the young fruit stage and then spray), and the investment is small, so it is the first choice for fruit farmers to adopt bagging technology. 4. The application of growth regulator to protect mango needs to consume a lot of nutrients during flower bud differentiation, heading, flowering and fruit setting, which is lack of nutrients, and the insufficient supply of tree nutrients leads to the shedding of flowers and fruits. Spraying melon and fruit Zhuangtieling can provide sufficient nutrition for tree growth, protect flowers, fruits and strong fruits, and have an obvious effect on increasing production. 5. Prevention and control of main diseases and insect pests (1) dredge the crown, increase the light transmittance, remove weeds, remove diseased branches, leaves and fruits, clean the garden with tree protection generals, disinfect and sterilize, and reduce the breeding conditions of germs. (2) timely spraying fungicides and pesticides can effectively control diseases and insect pests such as mango anthracnose, powdery mildew, Spodoptera litura, flat-beaked leafhopper, small fruit fly and fruit-sucking armyworm. Appropriate amount of new high-fat membrane must be added to improve the utilization of effective components of pesticides to achieve the best control effect.