There are new ways to remedy the frost of litchi.

In winter, the temperature is low, the precipitation is less, and the low temperature frost and freezing weather occur frequently. As a result, most of the litchi were damaged by frost in varying degrees, and the top leaves were damaged and withered. Therefore, the frost prevention work must be done in time, and the specific measures are as follows: before the frost comes, the whole garden should be sprayed with new high fat film to keep warm and frost, at the same time, the canopy should be covered with film and dried straw, and the young fruit trees and nurseries should be built in greenhouse or arch shed. The trunk of the fruit tree was whitened with whitening agent, and the main branch of the trunk was wrapped with straw. The whole tree was sprayed comprehensively and evenly to protect the tree from freezing, expel the overwintering virus, plant pests and multiply on the tree, and urge the fruit trees to hibernate early and restore their vitality. Irrigation or spraying water on orchards before frost can increase the temperature of soil, air and surface, and reduce the harm of frost. At night when frost comes, grain husks, weeds, branches and leaves, sawdust and rice straw can be used around the orchard to burn and smoke 4-6 piles per mu, which can increase the temperature of the orchard and prevent frost.