The focus of pruning is ventilation and light transmission. Pay attention to the key prevention and control of one insect and one disease of hawthorn (which is easy to cause rust spots on the surface of hawthorn fruit), that is, red spider and rust. Tetranychus viennensis (red spider) can be controlled by spraying abamectin, abamectin, abamectin, etc. If the branches are sparse, it is necessary to leave some flourishing branches or back branches to fill the space, so as to ensure the stable yield, and appropriately cut the left back branches or flourishing branches, so that the pruned hawthorn tree can bear large fruits with bright colors, which can obviously improve the product quality of hawthorn.
It is necessary to control the number of leaves, update the bearing branches, increase the number of fruits, ensure high yield, and improve the time of flourishing fruit. To control the fruiting mother branches and vegetative branches, cut off some outer branches and too dense branches to make the whole tree well transparent. The branch on the back should be determined according to the situation. If the branches are sparse, it is necessary to leave some vigorous branches or back branches to fill the space and ensure the stable yield.
Young hawthorn trees grow slowly and weakly, which is also the slow seedling stage of hawthorn trees. The pruning at this stage is mainly to reshape, cultivate backbone branches, adjust the growth direction and angle of backbone branches, and lay the foundation for the results. Young trees in the 3-year growth period should be pruned, and the pruning at this stage should determine the tree shape of buying books, cultivate various fruiting branches, improve the yield of fruit trees, and make a good orientation.