Principles of Pruning - When and Why to Prune

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The principles of pruning is a new video series from the Integrated Pest Management Program with Iowa State University Extension and Outreach. This series will give you the knowledge and instruction to safely and expertly prune your shade trees. In this first video Dr. Jeff Iles (Iowa State University) discusses why it is important to prune, when it should be done and shows what tools you will need to be successful.