Long branches should be cored in June. After removing the core, the top of the long branch will branch to form 2-4 lateral branches, and many flower buds will appear in the second year. If the long branches are not cored in June, they will not develop into buds in the middle and late July and will not blossom and bear fruit in the next year. After blueberries are out of the cold, they can be pruned in spring. Generally, this spring pruning can be started in early May. Pruning in spring is generally to cut off diseased branches, weak branches, dead branches and injured branches. When the new branches of blueberry grow to 40 to 50 cm, they should be sharpened to ensure the maturity of the trunk and promote the secondary growth.

The pruning time of blueberries depends on the size cycle of high and low bushes. The pruning time of short clumps is mainly to remove flower buds at the young tree stage, and the pruning time of short clumps is to cut off all the stubble on the ground from the base before germination in early spring. Sawn branches can be left in the orchard, which can cover soil and improve organic matter. Pruning of young trees is mainly to remove flower buds, so as to enlarge the crown, increase the number of branches and promote the development of roots. In the spring of 2003, the weak branches were thinned, and in the fourth year, the crown was mainly expanded.

Two weeks after picking is appropriate, and the thick branches should be disinfected. The fruiting period of shrub branches coated with disinfectant, soil pressing plate at the root of trunk, frost prevention and insect prevention is about seven years. It is best to cut all the branches as low as possible from the ground, and then send them next year, and then trim some weak branches and branches with poor shape and too dense in seven years.

Pruning of fruit trees is an important step to ensure fruit growth, aiming at adjusting the contradiction between normal growth and vegetative growth of fruits. The main pruning methods of blueberry are stubble leveling, flower bud cutting, flower thinning and fruit thinning. The effect of this pruning method is different. Short cutting is divided into: light cutting-leaving the top bud, medium cutting-leaving the middle bud, heavy cutting-leaving the base 1-2 bud, "leaving the blind node" and "wearing a hat" with weak growth potential, leaving the blind node.