DendroDiagnostics, Inc. - Certified Forester and Arborist in South Carolina Your Subtitle text Home Arboriculture Services Forestry Services Other Services Contact UsHome... DendroDiagnostics is a firm operating from the Columbia area of South Carolina that specializes in Diagnostic Arboriculture and Forestry. Our primary Arborist, Forester and Diagnostician.... Registered and SAF Certified Forester, an International Society of Arboriculture Certified Arborist and a S.C. Commercial Pesticide Applicator. Our services are provided directly...