After germination, the useless buds on the tree were erased. For newly planted young trees, it is mainly to erase the "wild buds" germinated on the rootstock and the buds below the plastic belt of the seedlings. For young trees and early fruit trees, it is mainly to erase the competitive buds near the extension branches of backbone branches at all levels, the overgrowth buds near the incision and some buds with overgrowth tendency on the back.