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or permission. LHO 242 (4) S Tree Selection Covers correcting ... pathological or non-pathological tree failure and knowledge of the anatomy ... and physiology of a tree. Prereq: LHO 240 or permission. LHO 244 ... 4) S Transplanting Establishing Urban Trees Provides skills and understanding to ... determine high-risk-hazard trees. Covers proper tree transplanting, soil ... or permission. LHO 246 (4) S Urban Tree Management Covers ability to determine ... Prereq: LHO 152. LHO 248 (4) S Urban Tree Problems Diagnosis and treatment of ... environmental tree problems, insects, diseases and wounds ... permission. LHO 256 (4) S Advanced Tree Pruning Removal Covers tree climbing ... and pruning techniques for tree care operations. Includes basic tree ... practices. Participation in supervised tree climbing optional. Prereq: LHO 155 and ...