Proper pruning is usually removing material near the ends of branches or along the outer canopy of the tree, removing dead limbs, and only thinning where necessary. The tree needs its canopy to produce food to live; therefore excessive removal of green limbs will harm the tree. Additionally, improper cuts such as flush or ripped cuts will also lead to future problems. When a tree is properly pruned, it will not need to be pruned as often; I know it doesn’t make sense, but a overly pruned tree will actually react by growing faster because it is trying to replenish its leaves so it can produce food again and survive. Therefore maintenance costs are lowered when proper care is given.