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Animation of structural pruning on medium-aged tree

Viewing this animated pruning clip requires Flash player.

The clip shows how to prune a medium aged tree with three main stems competing for space. Two of these competing stems will be shortened using a reduction cut so that the one stem that was not shortened will grow faster. This faster growth rate will allow the uncut stem to become the main trunk. This procedure needs to be repeated every 2-5 years in the first 25 years in the life of the tree to develop good structure. The example five animation will show how this same tree can be pruned more aggressively. This aggressive treatment is needed 1) for certain fast growing species, 2) for tees that are pruned infrequently, and 3) in the warmer climates where growth rate is rapid.