In recent times, the magpies in the central area of ​​Guangdong have basically been picked up, transferred to the restoration of tree vigor, and cultivated the growth stages of the summer shoots. The northern part of Guangdong Province has just entered the fruit-picking period and is mainly responsible for promoting shoot growth in cultivation and management. The growth of litchi shoots is often affected by high temperatures, and shoot growth above 28°C in Guangdong is inhibited. Due to the rapid rise of the weather, new shoots sprouted after fruit picking and they encountered high temperatures, which could affect the growth of new shoots. Some of the orchards that lower the canopy by pulling the branches are exposed to the sunlight after the high-yield trees are harvested. This also affects new shoots. 1 Protect the trunk and promote the summer shoots. Trees with fewer leaves can use wet newspapers to wrap the trunk. When the shoots grow up, they can block the sun and remove the newspaper. 2 shrub cover, increase soil moisture and protect the topsoil root system. 3 timely fertilization, mainly compound fertilizer + nitrogen fertilizer. It is advisable to apply fertilizer before fruit harvesting, which is beneficial to restoring vigor. When the shoots turn green, they can also spray root fertilizers such as agricultural nucleotides +0.1%-0.2% nitrogen fertilizer. After the new shoots are taken out, do not rush to the branches, and the branching force is weak. In order to cultivate high-yield canopies and overcome annual and small results, cultivating branch shoots is the key. Buds should be properly sparse from 30% to 50%. 4 appropriate water and drought, promote the growth of summer shoots. 5 Pay attention to the occurrence of pests and diseases. The main diseases are ash disease and leaf spot disease. The medicine that sprays and prevents disease when the leaves are pulled out from the new shoot, such as 70% mancozeb WP 800-1000 times; 40% phosphine aluminum wettable powder 400- 600 times liquid; 50% ethoxy aluminum manganese zinc wettable powder 500-800 times; 70% thiophanate-methyl wettable powder 800-1000 times liquid. The main insect pests were poisonous moths, caterpillars and other damage shoots, spray 80% crystal trichlorfon 800-1000 times liquid; mulberry Tianniu infestation branches, spawning in the late May to June in the trunk within 5 cm from the ground, Spawns have "l" or "sacral" wounds on the skin and the surface is moist. Inspect the base of the trunk, promptly scrape the egg pieces, or inspect the larvae for smashed wood chips and feces. Kill the larvae that have entered the xylem with iron money, or inject 5-10 times dichlorvos or dimethoate, and plug the wormhole with wet mud. Kill larvae.