Pruning skills of greening trees

The pruning time of greening trees is mainly in winter and summer, which is the most suitable time period. Winter pruning is the pruning of deciduous trees from defoliation to spring germination, and summer pruning is carried out in the growing season. There are many methods of pruning, such as cutting short, retracting, drying, carving, girdling, coring, bud smearing, flower thinning, fruit thinning, modeling and so on. The emphasis of pruning in different periods is different. Pruned branchlets don't need wound protection, but big branches need to be protected.