A certified arborist is a tree care professional who has passed rigorous exams through the International Society of Arboriculture (ISA) and keeps current with the latest industry standards. Certification reflects training in tree biology, soil health, pruning techniques, disease and pest identification, and jobsite safety. Bayou Tree Service has a deep bench of ISA certified arborists on staff, which means your trees are evaluated and cared for by credentialed professionals.