How should cherry blossoms be managed in autumn?

How should cherry blossoms be managed in autumn? Please introduce the methods of cherry blossom autumn tree management 1. The leaves of cherry blossoms are vulnerable to diseases such as powdery mildew, brown spot, coal fouling and so on. If the control is not timely, it will lead to premature leaf shedding and affect nutrient accumulation, which is disadvantageous to flowering next year. You can choose 70% methyl topiramate 1000 times solution, 65% Dysen zinc wettable powder 500x solution, sprayed every 15 days. Try to avoid the use of dichlorvos so as not to cause fallen leaves. Properly watering and increasing foliar spraying (0.3% to 0.5% urea, 0.3% potassium dihydrogen phosphate) to ensure that the leaves are intact, thick and green. Second, the application of base fertilizer in autumn is generally in the first ten days of September, when the fertilizer has sufficient time to mature, which can be absorbed and utilized by the tree before dormancy. At this time, the roots cut off by fertilization can more and more germinate and absorb a large number of roots, thus improving the absorption and utilization of fertilizer. The main types of fertilization are rotten farm manure, combined with a small amount of chemical fertilizer. In general, 50 to 75 kilograms of soil and miscellaneous fertilizer are applied to each young tree, and the basic fertilizer should not be too deep in autumn, and 40 to 50 centimeters is appropriate. Young trees can use ditch application method, strong trees use sprinkling method, if the tree body is found to be deficient, can be properly mixed with a small amount of trace elements. Before the arrival of the root growth peak of cherry blossoms in autumn, combined with the application of base fertilizer, deep turning of the tree plate can increase the amount of deep roots, store water and preserve soil moisture, and increase the soil temperature. Clean up the dead branches, fallen leaves and weeds in the tree plate and burn them centrally, so as to eliminate the overwintering pathogen and bacteria source. Fourth, pruning in autumn combined with the growth status of the tree, timely remove dense branches, cross branches, overlapping branches, disease and insect branches, improve the ventilation and light transmission of the crown, and enhance the tree potential. Smooth and scrape the wound with a sharp knife, disinfect it with a 5-degree solution of stone sulfide, and then apply protective agents such as tung oil to prevent wound decay. Click for more cherry blossom planting techniques click to get more flower planting techniques