It won't exhaust the tree, but when fruit trees bear too much fruit, some flowers and fruits should be removed appropriately for the purpose of (controlling the growth of genitals).

The growth of nutritive organs such as roots, stems and leaves of green flowering plants is called nutritive growth. After a certain period of nutritive growth in green plants, they begin to form flower buds, which later produce flowers, fruits and seeds. The growth of reproductive organs of plants such as flowers, fruits and seeds is called reproductive growth. Plants from nutrient growth to the stage of reproductive growth, need certain conditions. First of all, it depends on the plant's nutrient organs to produce and accumulate a certain amount of organic matter, and secondly, different plants also need different external conditions. If the plant's nutrient growth is too exuberant will affect reproductive growth, so the fruit tree shaping is to adjust the two kinds of growth, is conducive to the concentration of organic matter produced by the fruit tree to the strong branches, so that the fruit quality.