This is because fruit trees tend to grow branches, so do peach trees and apple trees. There are many branches in a year. If not trimmed, the branches will grow longer and longer, and the longer and denser. In the end, even the sun couldn't penetrate. How can fruits grow well without sunshine?

Some fruits, such as pears and apples, like to grow on short branches, while apricots and peaches like to bear fruit on long branches. In order to make them bear more fruits, useless branches should be cut off. Also, when fruit trees are infected with pests and diseases, can cutting off diseased branches reduce the losses caused by pests?

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