When hawthorn is pruned, it can choose the form of evacuation stratification, multi branch closed heart or natural open center tree. Attention should be paid to adjust the partial crown of the tree shape.
When hawthorn trees are young, the principle is to cut lightly and keep more, and cut short upright branches and competitive branches. In the second year, the shoots at the cutting point were in the opposite direction to that of the previous year. The extension branches of the main and lateral branches should be cut short to leave the outer buds at the opening angle.
In the early fruit stage of hawthorn, the elongated branches of all bone branches can be cut short, so as to maintain the subordination and balance the tree potential. Sparse pruning crowded branches, over dense branches, or retraction into large fruiting branches, sparse pruning over dense branches.
In the full fruit stage of hawthorn, we should pay attention to ventilation and maintain good light transmission conditions. At this time, we need to short cut the new branches around the crown, strengthen the growth of vegetative branches, and shrink and prune the fruiting branches. In addition, the overlapping branches, over dense branches, Cross branches and pest branches should be cut off. The apex of the big branch is drooping, which can be slightly retracted, and lateral or oblique branches can be reserved. When pruning the bearing branch of hawthorn, the density of branch group should be adjusted by cutting weak, leaving strong, and removing thin, leaving strong. The strong branch in the short cutting branch group shall be used as the preparatory branch to prevent large and small year phenomenon. In order to make full use of these branches, we can cultivate them into fruiting branches through short cutting and picking in summer.
More than 10 years of hawthorn trees to sparse shear based, will plant diseases and insect branches, dead branches and too dense random pruning, so that the crown to maintain a uniform, appropriate branches density, conducive to ventilation and light.
