Pruning is both an art and a science. Integrity Tree Service, Inc. combines both artistic expression and research-based data in making pruning decisions. To guide these decisions, we abide by the ANSI A300 publication, Standard Practices for Pruning. ANSI A300 is the industry standard for proper tree care. A design precept states that form follows function. The same applies to pruning trees. Beautiful trees are the result of proper tree function. When we can aid that function with the help of good pruning practices, trees are more structurally sound and they also look their best.