By following the good, better, best approach, arborists can successfully intervene to interrupt the spiral, revitalize tree health, and restore the natural defense systems of these magnificent keystone species. Oak trees are such a significant part of our history and culture that your clients will want to help you save these trees. By establishing a proactive PHC program with them, you will not only secure the future of the great oak but also position yourself as an essential steward of our most valuable natural assets.